new mexico
TRANSCRIPT
BEFORE THE NEW MEXICO PUBLIC REGULATION COMMISSION
IN THE MATTER OF THE APPLICATION(:~F PUBLIC SERVICE COMPANY OF NEWMEXICO FOR A REVISION OF ITS RETAILELECTRIC RATES PURSUANT TO ADVICEN OTICE NOS. 397 AND 32 (FORMERTNMP SERVICES),
P UBLIC SERVICE COMPANY OF NEWIV[EXICO,
Applicant
))))))))))
Case No. 10-00086-UT
DIRECT TESTIMONY AND EXHIBITS
OF
JAMES A. MAYHEW
June 1, 2010
DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
TABLE OF CONTENTS
I. OVERVIEW ...........................................................................................................................2
Il. DEVELOPMENT OF REVENUE REQUIREMENTS .........................................................8
A. TEST PERIOD ......................................................................................................................8B. SUMMARY OF OVERALL REVENUE REQUIREMENTS ............................................17C. REVENUES ........................................................................................................................26D. RATE BASE .......................................................................................................................30E. FUEL EXPENSES ...............................................................................................................32F. OPERATION AND MAINTENANCE ("O&M") EXPENSES ..........................................45G. PHASE-IN .̄...................... .....................̄ ......... ..............̄ ....... ........ ......̄ ......... ................. ....49
IX’. RATE DESIGN.................................................................................................................... 2
V iI. MISCELLANEOUS
LIST OF TABLES
T¢~,BLE JAM-1 TEST PERIOD REVENUE REQUIREMENTS ................................................19
T,,~LBLE JAM-2 TEST PERIOD FORECASTED REVENUES ...................................................26
TABLE JAM - 3 REVENUE DEFICIENCY ...............................................................................48
AI’FIDAVIT
I_IST OF EXHIBITS
PNM EXHIBIT JAM-1
PNM EXHIBIT JAM-2
PNM EXHIBIT JAM-3
PNM EXHIBIT JAM-4
PNM EXHIBIT JAM-5
P NM EXHIBIT JAM-6
P ~IM EXHIBIT JAM-7
P’~IM EXHIBIT JAM-8
PNM EXHIBIT JAM-9
PNM EXHIBIT JAM-10
PNM EXHIBIT JAM-11
PNM EXHIBIT JAM- 12
P~,JM EXHIBIT JAM- 13
PNM EXHIBIT JAM-14
PNM EXHIBIT JAM-15
P]~IM EXHIBIT JAM- 16
PI’IM EXHIBIT JAM- 17
PNM EXHIBIT JAM-18
PNM EXHIBIT JAM- 19
PI~’M EXHIBIT JAM-20
PB M EXHIBIT JAM-21
DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
Resume of James A. Mayhew
List of 530 Schedules Sponsored
Requested Capital Additions
Comparison of Sales and Customers
Significant Revenue Impact
Rate Case Expenses
Explanation of Load Forecast
Permian Basin Gas Prices, Palo Verde Hub Market Prices
Embedded to Marginal Cost
Functional Comparison of Marginal Cost
Methods of Class Study Allocations
Summary of Revenue Increase and ROR by Class
Monthly Peak Load Trends
Time of Day Peak Load Trends
Tariffwith no change in Customer Charge
Development of Fixed Cost Recovery Rider
Decoupling Implementation
Decoupling Prior Year Example
Development of Fixed Cost Recovery for New Interconnected
Customers
Development of Distributed Generation Avoided Cost
Solar Peak Compared to PNM System Peak
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Aq
DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
PLEASE STATE YOUR NAME, TITLE AND BUSINESS ADDRESS AND
RESPONSIBILITIES.
My name is James A. Mayhew. I am the Director of Pricing and Cost of Service for
Public Service Company of New Mexico ("PNM" or "Company"). My business address
is Public Service Company of New Mexico, Alvarado Square MS-0820, Albuquerque,
NM 87158. I am responsible for the preparation of PNM’s cost of service, pricing and
proposed tariff changes in the jurisdictions where the Company operates. I also have
responsibility for revenue and margin forecasts including sales and fuel.
PLEASE PROVIDE YOUR EDUCATIONAL BACKGROUND
EXPERIENCE.
My educational and work experience is described in PNM Exhibit JAM-1.
AND WORK
HAVE YOU PREVIOUSLY TESTIFIED BEFORE THE NEW MEXICO PUBLIC
REGULATION COMMISSION ("COMMISSION")?
Yes I have. Listings of the cases are provided in PNM Exhibit JAM-1.
WHAT IS THE PURPOSE OF YOUR TESTIMONY IN THIS CASE?
The purpose of my testimony is to:
1. provide an overview of the filing;
2. describe the development of the revenue requirements for PNM North and for PNM
South;
3. describe the phase-in proposed by PNM;
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
4. describe how PNM proposes to handle cost recovery for renewables;
5. summarize the allocation of revenue requirements to customer classes;
6. describe how rates were designed to recover revenues while mitigating overall impact
on customers;
7. provide an explanation for rate design and rate making methods to comply with Rule
17.7.2.9K (7)(a).
8. describe how rates were designed to recover costs for new interconnected customers;
and
9. describe how this filing complies with previous orders of the Commission.
PLEASE LIST THE 530 SCHEDULES THAT YOU ARE SPONSORING.
The 530 Schedules I am sponsoring are included in PNM Exhibit JAM-2.
I. OVERVIEW
WHAT IS PNM REQUESTING IN THIS CASE?
As more fully described in my testimony, PNM is seeking to: (a) increase its base rates
in PNM North by $152,852,079 including base fuel revenues; (b) increase its base rates
in PNM South by $12,317,908 including base fuel revenues; (c) phase-in the base rate
increases in two increments, effective April 1,2011, and January 1, 2012, ifPNM’s rate
relief request is fully accepted; (d) provide the rationale for continuation of the separate
revenue requirement for PNM North and PNM South; (e) implement a fuel and
purchased power cost adjustment clause ("FPPCAC") for PNM South; (f) provide for
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
separate tariff and rate design changes to PNM North and PNM South; (g) increase the
residential and small power customer charges for PNM North to recover a larger portion
of fixed costs unless the Commission adopts PNM’s decoupling proposal; (h) implement
a revised Time of Use ("TOU") pricing period; (i) implement a revised seasonal rate
period; (j) implement a proposed Fixed Cost Recovery Rider ("FCRR" or "Decoupling")
for the PNM North Residential and Small Power Rate Classes; and (k) implement a rider
for new interconnected customers for recovery of net costs to serve those customers.
WHAT DO YOU MEAN BY "PNM NORTH" AND "PNM SOUTH"?
The PNM North service territory consists of the areas PNM served prior to its acquisition
of the New Mexico assets of Texas New Mexico Power Company ("TNMP") on January
1, 2007, in accordance with the Commission’s Order approving a Stipulation in Case No.
04-00315-UT authorizing the acquisition of TNP Enterprises by PNM Resources Inc.
("TNP Stipulation"). PNM North essentially consists of the metropolitan area of
Albuquerque (including Rio Rancho, Bernalillo, Los Lunas and Belen), and the cities of
Santa Fe, Las Vegas, Deming and Clayton, and surrounding areas. PNM North consists
of approximately 460,000 customers, with forecasted calendar year 2011 kWh sales of
7,869,119,111 and forecasted calendar year 2011 base revenues including fuel of
$717,284,682 under existing rates. The PNM South service territory consists of the areas
formerly served by TNMP, which are essentially the cities of Silver City, Lordsburg,
Alamogordo, Tularosa, and Ruidoso. PNM South consists of approximately 50,000
customers, with forecasted calendar year 2011 kWh sales of 562,062,683 and forecasted
calendar year 2011 base revenues including fuel of $63,581,327 under existing rates. The
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
system average cost (exclusive of miscellaneous service revenues) before the revenue
increase for PNM North is $0.0910 per kWh. The system average cost (exclusive of
miscellaneous service revenues) before the revenue increase for PNM South is $0.1084
per kWh. The predominant reason for the large cost disparity between the service areas is
how PNM’s generation and related fuel costs are assigned to PNM North and PNM
South.
WHY IS PNM REQUESTING A SEPARATE RATE INCREASE FOR PNM
NORTH AND PNM SOUTH?
In accordance with the TNP Stipulation, PNM may not consolidate cost of service for
PNM North and PNM South unless doing so involves a transfer of revenue requirement
from PNM South to PNM North of no more than $1.5 million. Under the Stipulation this
limitation will remain in place until July 2015. In addition, Stipulations in the Merchant
Plant phase of Case No. 3137 ("3137 Stipulation") and Case No. 05-00275-UT ("Alton
Stipulation") preclude PNM’s coal and nuclear base load generating plants from being
allocated to PNM South, and require a 50-50 sharing of the Afion-related costs between
PNM North and PNM South. These provisions also remain in place until the service areas
are combined.
The Total column in my exhibits and schedules which reflects the sum of the revenue
requirements for PNM North and PNM South should not be considered the revenue
requirement if PNM North and PNM South rates were consolidated. The jurisdictional
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
allocations would change resulting in a different revenue requirement for the
consolidated cost of service than the sum of the separate revenue requirements.
PLEASE SUMMARIZE THE MAJOR COST AND RATE DIFFERENCES
BETWEEN PNM NORTH AND PNM SOUTH.
The cost of service and rate differences originate from the energy sources that PNM and
the then TNMP relied upon prior to the acquisition in 2007. Prior to the acquisition,
TNMP-NM was a vertically integrated utility that relied on long and short-term purchase
power contracts to meet its customers’ energy needs. Its supply costs, therefore, followed
natural gas prices closely. In contrast, PNM owned a generation fleet comprised of large
base load coal and nuclear generation facilities with some gas-fired peaking generation.
PNM’s supply costs were driven primarily by the prices of coal and nuclear power. The
three stipulations preserved these cost differences even after acquisition of the TNMP-
NM service territory by PNM. The higher per unit cost of natural gas-produced
electricity drives the higher price that PNM South customers currently pay. Given the
regulatory framework established over the years, this price disparity remains despite the
fact that PNM operates its generation and transmission system as a single system.
There are also significant differences between the rate structures of PNM North and PNM
South. For example, PNM North has more commercial and industrial rate classes, a
FPPCAC, TOU options for its customers, seasonal rate periods, and an inclining block
rate structure for its residential rate class. There are thirteen PNM North rate classes and
eight PNM South rate classes within each of the allocated class cost of services. It is
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
important to note that PNM South does not have a FPPCAC despite its heavy reliance on
gas-fired generation. TNMP’s FPPCAC was eliminated as part of the TNP Stipulation
since PNM North did not have a FPPCAC at the time.
The majority of the large customers in the South are home improvement and general
merchandise stores, hospitals, educational and municipal facilities. The South also has a
limited number of residential customers who use an average in excess of 1,000 kWh per
month, which is typical of larger homes or homes that use refrigerated air conditioning.
Further, PNM North has ten times as many customers who have fourteen times as much
usage as the South. Thus small changes in the cost of service and rate design can and will
have a more significant impact on the South customers.
WITH THIS DISPARITY IN RATES
STRUCTURES FOR THE SOUTH THAT
NORTH IN THIS CASE?
IS PNM PROPOSING RATE
ARE MORE SIMILAR TO THE
No. As described later in my testimony, due to the different demographics for PNM
South, the separate cost of service and the specific pricing impact to the PNM South
customer groups makes it difficult to move toward common rate structures and rate
classes at this point. Significant changes in tariff structure on a stand alone basis can
cause a disproportionate change in the individual customer bills for the South’s
customers. For this reason PNM is also not requesting that the pilot decoupling tariff be
applied to the PNM South service area at this time. Instead PNM is recommending only
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
specific changes to PNM South’s tariff structure to begin reasonable movement to
consolidated rates in the future.
WHAT TEST PERIOD DOES PNM PROPOSE TO USE IN THIS CASE?
PNM’s filing is based on a Test Period for the calendar year beginning January 1,2011,
with a rate base as of December 31, 2011, including Construction Work In Progress
("CWIP") in the Test Period associated with plant expected to be in service as of March
31, 2012, consistent with the provisions of Sections 62-3-3P and 62-6-14D and E ("SB
477") of the Public Utility Act ("PUA"). In accordance with the requirements of Rule
530, the Base Period is PNM’s actual experience as reflected on its book balance of
accounts for the twelve month period ended December 31, 2009.
Despite the fact that Rule 530 does not provide for a future test period as allowed by SB
477, PNM’s filing complies with the minimum data filing requirements contained in Rule
530. Through the Rule 530 Schedules and accompanying work papers, as well as the
testimony and exhibits of its witnesses, PNM has provided a "linkage" between the Base
Period and the Test Period and otherwise demonstrated the reliability of its Test Period.
The Test Period proposed by PNM best reflects the conditions to be experienced by PNM
during the period when new rates are expected to take effect.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
II. DEVELOPMENT OF REVENUE REQUIREMENTS
A. TEST PERIOD
Q. WHY WAS CALENDAR YEAR 2011 SELECTED AS THE TEST PERIOD?
A. As described by PNM witness Damell, calendar year 2011 captures the majority of the
costs that will be incurred during the first year of operation under the rates approved in
this case.
WHAT TYPES OF ADJUSTMENTS ARE TYPICALLY MADE WHEN
DEVELOPING THE TEST PERIOD REVENUE REQUIREMENTS?
The use of a "historical" or a "future" test period will dictate to a large extent the type
and nature of the adjustments being made. For example, a historical test period examines
investments and operating expenses as they existed in a past period and then has to
include specific adjustments to bring the historical test period closer in time to the
expected future conditions when rates are expected to go into effect. But, because the
concept of a historical test period is founded on the premise that the data must be "known
and measurable," there is a cut-off date for "updating" the historical test period that ends
before the case is even filed, or very shortly thereafter. Thus a historical test period is
never truly made completely current as of the time new rates take effect. And, it must be
remembered, that even though a historical test period is based on actual results, it is
nevertheless a forecast of the future when rates will take effect. Essentially it is founded
on the often incorrect assumption that the past relationship among revenues, expenses
and investments will largely repeat itself in the future.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
The future test period also forecasts the relationship of revenues, expenses and
investment for the period of time when new rates will take effect, but does so using well-
accepted forecasting tools and techniques generally used for business planning purposes.
Although for some categories of operations, historical perIbrmance may provide good
information for predicting the future, a future test period is not constrained by history
where more sophisticated forecasting tools can provide better information. Thus,
especially in times of changing economic conditions, a future test period will be more
representative of the future conditions when rates are expected to take effect and of the
relationship of expected sales, expenses and plant investment than is a forecast using only
historical information, i.e. a historical test period.
AJ
PLEASE DESCRIBE THE TYPES OF ADJUSTMENTS UTILIZED IN THE
DEVELOPMENT OF TEST PERIOD REVENUE REQUIREMENTS.
Adjustments utilized in the development of test period revenue requirements can be
generally classified into four types: annualization, normalization, amortization, and
stipulated. Annualization adjustments are traditionally associated with the use of a
historical test period while normalization adjustments are appropriate with both a
historical test period and a future test period. Amortization and stipulated adjustments to
a test period are typically reflective of past regulatory orders.
¯ Annualization adjustments serve to ensure that both costs and revenues are reflective
of a full twelve-month period. This type of adjustment is typically made to a
historical "per book" time period to capture a full twelve months of expense or
revenue. For example, if employees were given a pay raise four months into the
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
historical test period, the payroll costs would be annualized as if the pay raise were in
effect for the entire twelve month period. This is done because the new level of pay
will be that forecasted to be in effect in the future period. Note that this approach,
designed to move the historical test period closer in time to the future period when
new rates will be in effect, then ignores pay raises that occur between the time of
filing the case and implementation of new rates. Typical annualization adjustments
made to a historical test period include annualized depreciation based on the booked
plant in service, payroll based on expected number of employees and customer
growth at year end. These types of adjustments were not made to either the Base
Period or to the Test Period cost of service.
Normalization adjustments ensure that revenue and cost levels in the test period are
representative of normal utility operations. Normalization reflects the timing of
operating expenses that are incurred during the normal operations of a utility over the
course of a year. Further, operations during any particular twelve month period
which constitutes a test period may be an anomaly or otherwise may not properly
reflect the operating conditions during the entire period when new rates will be
effective, which in New Mexico has generally been assumed to average about three
years. These adjustments, for example, adjust revenues or operating expenses existing
in the twelve month period constituting the test period that are not expected to re-
occur annually during the period the proposed rates will be in effect. Normalization
adjustments made to the Test Period cost of service as shown on 530 Schedule K-1
Test reflect the normal expenses expected on an average annual basis for the assumed
period of time when new rates will be effective.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
Amortization adjustments typically reflect expenses or regulatory items that the
Commission has previously determined should be recovered but not in a single year.
Such expenses are amortized over the period the proposed rates will be in effect or in
the alternative a period specified by the Commission. The amortization adjustments
made to the Test Period cost of service as shown on 530 Schedule H-16. The Test
Period includes an amortization of rate case expenses as well as prior approved
treatment of regulatory assets such as those associated with renewable energy credits
("REC").
¯ Stipulated adjustments are necessary to ensure that the company stays in compliance
with all previous regulatory orders and stipulations. These include adjustments such
as the Afion facility transmission costs as directed by the Afion stipulation.
The adjustments described above are shown in 530 Schedule H-16 along with supporting
work papers for each adjustment that has been made.
WHAT IS THE SIGNIFICANCE OF USING A HISTORICAL BASE PERIOD
WHEN USING A FUTURE TEST PERIOD?
In order to demonstrate that a future test period is reliable, utility commissions which
have used future test years have required a demonstration of a "link" between a historical
period and the future test year. This is different from relying on the historical period as
the test period for setting rates. In New Mexico, the Commission’s Rule 530 has
essentially required such a linkage for any type of test period, including a historical test
period. Rule 530 does this by requiring the filing of a base period (an unadjusted, recent
historical twelve-month period) and a test period, with information showing adjustments
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
to the base period to arrive at the test period, i.e. the linkage between the two periods.
Rule 530 recognizes that "adjustments" can be "estimates based on projections". This
linkage can be different depending on the nature of the costs involved or the revenues
requested. For example, a forecast of labor costs can be developed to some extent using
inflation factors, cost of living adjustments or expected pay increases, with the historical
period serving as a starting point for the escalation. On the other hand, capital
investments are best forecast by analyzing the need and timing for plant additions, and
then providing an explanation for major variances from the historical period so that the
reasons for the forecasted amounts can be analyzed and their reasonableness and
reliability verified. This explanation then provides the linkage to the historical period. In
this case PNM has gone further in providing a linkage. In demonstrating that the Test
Period best represents the circumstances to be experienced by PNM at the time new rates
take effect, PNM has provided much more supporting information than is generally
provided when using a historical test period.
HAS PNM SHOWN THE LINKAGES FROM THE BASE PERIOD TO THE
TEST PERIOD IN THE RATE FILING?
Yes. My testimony and that of PNM witnesses Patrick Themig, Gary Stone, Shauna
Lovorn-Marriage, Jonathan Lesser, Kenneth Vogl and Earl Robinson, describe in detail
the underlying estimates and rationale for the major drivers in the requested revenue
increase. The Exhibits in my testimony and that of PNM’s other witnesses, the 530
Schedules in the rate filing, and associated work papers provide both the linkage and
rationale for the adjustments made in the filing from the Base Period to the Test Period.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
In addition, PNM has included a line item comparison of the Base and Test Period cost of
service calculation for Total PNM Electric (which includes the FERC jurisdiction), PNM
North, and PNM South in 530 Schedule H-16, including all supporting work papers.
HOW HAS PNM PROVIDED THE LINKAGE FROM BASE PERIOD TO THE
TEST PERIOD FOR NET PLANT?
As described by PNM witness Richard Starkweather, ScottMadden performed a capital
project review by specific project to validate the underlying investment and operational
justification for those capital investments initiated by PNM. Plant in service as of the end
of the Test Period is based on the capital investments projected to be in service by the end
of the Test Period. A listing of these plant additions, along with a project description and
rationale for the investment, is provided in PNM Exhibit JAM-3. Each of the capital
investments have been functionalized as production, transmission, distribution, or general
and intangible and then categorized into its appropriate plant utility FERC accounts based
on function. Accumulated Reserve was then calculated for these additions beginning with
project in service date through the end of the Test Period. In addition, PNM rolled
accumulated reserve forward to the end of the Test Period for plant balances as of
December 31, 2009. The Test Period calculation of Gross Plant, Accumulated Reserve,
and Net Plant utilizing this methodology is shown in 530 Schedule H-16 and the
supporting Net Plant work papers. A further description of these projects and the
rationale for the investment is included in the testimonies of PNM Witnesses Themig and
Stone.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
HOW HAS PNM PROVIDED THE LINKAGE FROM BASE PERIOD TO THE
TEST PERIOD FOR OTHER RATE BASE ITEMS?
As shown in 530 Schedule H-16 and supporting work papers, PNM has rolled the
December 31, 2009 balance forward for all other rate base items to the end of the Test
Period. This includes items such as Accumulated Deferred Income Taxes as further
described by PNM witness Matthew Harland. PNM has calculated all required
adjustments to reflect prior orders and included additional rate base items as necessary,
such as rate case expenses and REC regulatory assets, as discussed later in my testimony.
HOW HAS PNM PROVIDED THE LINKAGE FROM BASE PERIOD TO THE
TEST PERIOD FOR O&M?
As described by PNM witness Starkweather, ScottMadden performed a detailed review
of the individual cost centers and FERC primary account for operations and maintenance
expense for the rationale and justification for any non-fuel change in excess of $1
million. With ScottMadden’s assistance, PNM utilized historical financial and prospective
budget data to compare the Base Period costs with the 2010 and 2011 budgets for FERC
accounts 500 through 935 exclusive of fuel. PNM then researched any accounts with
variances greater than $1 million.
2010-2014 budget cycle the
As described by PNM witness Starkweather, for the
business areas developed additional supporting
documentation for O&M costs, including explanations by cost type for any significant
increases for 2010 and 2011. PNM first reviewed this budget documentation and then
conducted follow-up meetings with the Corporate Budget Department and business unit
representatives to document explanations, and obtain supporting information, for the
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
FERC accounts with the $1 million variances. PNM has provided the variances between
Base and Test Period cost of service by primary FERC account in 530 Schedule H-16. In
addition, PNM has included a detailed explanation of all variances greater than $1 million
between Base Period and Test Period O&M utilizing the ScottMadden analysis. Fuel was
not included given the recent FPPCAC audit conducted by the Commission, the FPPCAC
factor adjustment that PNM has recently filed to implement in July, 2010 for PNM North
and since PNM is only requesting a base fuel adjustment to reclassify fuel and waste
handling and spinning reserves between non-fuel and base fuel revenues. PNM has
provided the variance between Base and Test Period cost of service by primary FERC
account in 530 Schedule H-16. Further, in PNM Exhibit JAM-4, I have detailed the
annualized kWh sales from the most recent rate case, Base Period kWh as of December
31, 2009, and the forecasted kWh for the Test Period.
DO YOU HAVE ANY OTHER OBSERVATIONS OR FINDINGS FROM YOUR
REVIEW OF THE PLANT ADDITIONS AND OPERATING EXPENSES?
Yes. PNM has conducted a more extensive analysis of the costs included in the Test
Period than what is typically required for a historical test period. As previously noted, a
historical test period reflects the actual operating experience of the Company as recorded
on its books with limited adjustments as I have described previously. The examination of
the historical test period is conducted to determine what adjustments must be made to
bring the historical operating experience closer in time to the expected conditions of the
Company when rates go into effect.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
Rarely is documentation or a review done for each cost center of the Company or each
underlying individual expense that was incurred in the historical test period. In contrast, a
future test period relies on the forecast and budgeting process of the Company. As
described by PNM witness Starkweather, this process provides underlying source
documents or estimates by each of the Company’s operating cost centers and for FERC
primary accounts that make up the operating expenses and plant additions shown in the
Test Period. It allows for a direct "line of sight" to exist between the cost of service and
the underlying home center budget documentation for the expense or plant addition in the
cost of service. Thus, unlike a historical test period, we developed a detailed
reconciliation of the cost of service forecasted results using PNM’s budget
documentation and other supporting records. This documentation provides a link between
the Base Period and the Test Period with the rationale for the major changes or
adjustments. Further, this documentation provides both the underlying development and
the rationale for the cost of service request by FERC primary account in the Test Period.
As a result, the documentation for the Test Period goes further in analysis and provides a
greater degree of underlying support than in prior cases relying on a historical test period.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
B. SUMMARY OF OVERALL REVENUE REOUIREMENTS
PLEASE IDENTIFY THE BUSINESS AREAS WITHIN PNM TO WHICH THE
TOTAL ELECTRIC COST OF SERVICE IS ALLOCATED.
Consistent with past rate cases, PNM’s total electric revenue requirements are allocated
as follows:
¯ PNM North;
¯ PNM South;
¯ FERC;
¯ Excluded, Merchant and Other which includes Palo Verde Nuclear Generating
Station ("PVNGS") Unit 3.
Again, as noted above,’the sum of PNM North and PNM South is not the revenue
requirement that would be requested if a consolidated cost of service was presented.
Because of changing the jurisdictional allocators, the revenue would be different.
PLEASE DESCRIBE THE JURISDICTIONAL ALLOCATORS USED IN THIS
CASE.
The 530 Schedule M-2 describes the jurisdictional allocators. PNM utilized the
forecasted kWh sales for the demand and energy allocators fi~r the Test Period. Demand
was prorated using 2009 peak demands. PNM has consistently used 12 Coincident Peak
(CP) allocation for the base load units of PNM North as well as the 12 CP method for the
allocation of the gas units except for Af~on. The fixed and non-fuel operating costs for
Aiton have been assigned 50% to PNM North and 50% to PNM South with no allocation
to the FERC firm wholesale customers as is done with the other generation units.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
Transmission costs were allocated to PNM North, South and FERC using a 12 CP
transmission peak allocation. The Afion transmission investment has been capped at $3.0
million for PNM North and at $2.9 million for PNM South per the Afion Stipulation.
The distribution investment and related costs as well as customer billing and customer
service costs have been directly assigned to each of the two retail service areas.
WHAT ARE THE BASE PERIOD REVENUE REQUIREMENTS?
The PNM North Base Period revenue requirements excluding revenue credits total
$809,327,398. PNM South Base Period revenue requirements excluding revenue credits
total $68,220,327. Both calculations are included in 530 Schedule K-1 Base for the Base
Period cost of service. These revenue requirements include $171,183,589 associated with
base fuel costs and $638,143,809 associated with non-fuel requirements for PNM North
and $15,437,860 associated with base fuel costs and $52,782,467 associated with non-
fuel requirements for PNM South. PNM calculated a base fuel expense for PNM South
based on the stipulated allocation of fuel expense for the Base and Test Periods used in
this case.
IS THE TEST PERIOD REVENUE REQUIREMENT INCREASE SIMPLY THE
DIFFERENCE BETWEEN THE BASE PERIOD REVENUE REQUIREMENT
AND THAT OF THE FUTURE TEST PERIOD?
No. The Base Period is the unadjusted O&M expenses and rate base as of December 31,
2009. Historical expenses have not been adjusted in the Base Period nor have sales been
adjusted to reflect changes in customer growth or use. The increase in revenue
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086oUT
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requirement is the difference between the Test Period cost of service and the revenues
applied to forecasted sales and billing determinants for that same forecasted period. This
is similar to what is done for a historical test period where annualized revenues are
forecasted using year-end customer growth and use, and the existing rates.
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WHAT ARE THE TEST PERIOD REVENUE REQUIREMENTS?
Table JAM-1 below provides a summary of the Test Period revenue requirement for
PNM North and PNM South. In addition to these revenue requirements, PNM is seeking
Commission approval of a FPPCAC for PNM South. For the Test Period revenue
requirements for PNM South, PNM has established the base fuel costs using projected
fuel costs for the twelve month period ending December 31, 2010.
Non’fuel Revenue Requirement (w/o I&S Fees)Base Fuel Revenue RequirementTotal Revenue Requirement as requested
PNM Noah PNM South675,145,091 51,527,861171,107,948 21,340,009846,253,038 72,867,870
Fue!Factor-july 2010 adjustment PNM North ............. 18,126,088I&S Fees ............................................. 4,282,046 ......... 368 712Miscelleneous ServiceCharges and Revenues............ 1,475 588 2,662,653T°talRetai!Revenue Requirement ...........................870136,76! ...... ..... 75,899,235 .....
Fuel Factor ’ July 201 i adjustment PNM South .................(subject to change)..................................... - ..... 4 687 285Miscellaneous Revenue Credits ........ 12 716,212 819,965Total Revenue Requirement (fuel and non-fuel) 882,852,973 81,406,486
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
PLEASE EXPLAIN THE MAJOR ELEMENTS OF THE REVENUE
REQUIREMENTS DEMONSTRATED BY THE TEST PERIOD.
PNM Exhibit JAM-5 provides a summary of the major revenue requirement elements that
make up PNM’s request. Included in the Exhibit is a listing of the operating expense and
rate base items that PNM is requesting. On page 2 and page 6 of the Exhibit is a listing of
the significant changes in Plant in Service as well as CWIP. Gross plant additions plus
CWIP for Total Electric before allocations from the end of the Base Period to the end of
the Test Period total $444 million (PNM Exhibit JAM-3).
PNM North’s share of gross plant plus CWIP additions from December 31, 2009 through
the end of the Test Period total $316.3 million and is made up of $151.9 million for
generation, $52.5 million for transmission, $81.6 million for distribution and $30.3
million for general and intangible plant. PNM South’s share of gross plant plus CWIP
additions from December 31, 2009 through the end of the Test Period total $22.5 million
and are made up of $6.7 million for generation, $6.1 million for transmission, $7.0
million for distribution and $2.7 million for general and intangible plant. The plant
additions as well as the new depreciation study have also increased depreciation expense
and property taxes over the Base Period. A more detailed discussion of these projects is
provided by PNM witnesses Themig and Stone. In addition to plant additions, PNM’s
Benefits costs are increasing. Post retirement medical expenses have increased a total of
$6.2 million over the Base Period and pension expense is increasing $15.3 million over
the Base Period. PNM is required to make additional contributions to the Pension Trust
in accordance with the Pension Protection Act of 2006. As a result of these large
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
contributions PNM’s pension expense is expected to increase. PNM witnesses Ken Vogl
and Shauna Lovorn-Marriage describe PNM’s pension costs in more detail. The Post-
Retirement Medical Costs increase is due to the fact that interest rates are projected to
decrease in the near term resulting in lower returns to the trust. This is compounded by
asset losses, particularly the large 2008 losses that are being recognized over a five year
period.
PNM’s plant scheduled maintenance costs also make up a significant portion of the
overall revenue requirement that PNM is requesting. Although comparable to the Base
Period, scheduled maintenance costs are significantly higher than prior years and as a
result these costs are not being adequately recovered in existing base rates. Plant
scheduled maintenance costs tend to vary from year to year with the timing of the
scheduled maintenance. As described by PNM witness Themig, PNM is proposing to
recover scheduled maintenance expenses on a normalized basis by averaging the annual
expenses for 2011 through 2013. The associated adjustment is included in 530 Schedule H-
16 and associated work papers.
The forecasted Distribution and Transmission O&M and Management Fee costs are
relatively flat when compared to Base Period amounts. A detailing of the variance is
explained in PNM Exhibit JAM-5 as well as 530 Schedule H-16 along with supporting
work papers.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
WHAT IS THE COST OF CAPITAL AND RETURN ON EQUITY THAT YOU
HAVE APPLIED TO THE RATE BASE IN THIS CASE?
PNM is using an overall weighted cost of capital of 9.43% as described further by PNM
witness Terry Horn. PNM’s requested return on equity is 11.75% as explained by PNM
witness Robert Hevert. As further described by PNM witness Horn, the weighted cost of
debt in the capital structure has been adjusted to reflect financings that will occur
between now and when rates are effective in 2011.
WHAT ADJUSTMENT TO RATE CASE EXPENSES IS PNM PROPOSING TO
RECOVER IN THIS PROCEEDING?
PNM is making an adjustment to rate case expenses to add projected rate case expenses
to be incurred in the present rate case. PNM is seeking recovery of $2.4 millior~ as is
detailed in PNM Exhibit JAM-6. Rate case expenses have been allocated $2,103,854 to
PNM North and $321,280 to PNM South. These expenses represent a special category of
expense that is recoverable as a part of a utility’s cost of service. It is a rate base
adjustment because the total amount of rate case expenses allowed for recovery is
amortized over a three year period, consistent with past treatment by the Commission. At
this time, I am providing a projection of rate case expenses in PNM Exhibit JAM-6, and
will update this projection in an exhibit which I will file prior to the commencement of
the hearing in this case. The new exhibit will reflect expenses incurred up through that
date and a projection of the costs to be incurred through the remainder of the case.
PNM’s goal is to provide the Commission with as timely and accurate a statement as we
can of the rate case expenses incurred in connection with this case. The total adjustment
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
is an increase of $1.9 million over the Base Period deferred amount. PNM has included
one year of the three year amortization in O&M.
HOW WAS THE RATE CASE EXPENSE ESTIMATE DERIVED?
This case involves numerous complex issues including filing for a future test period for
the first time pursuant to SB 477. As a result, many of these issues will be reviewed for
the first time and therefore the costs of preparing and potentially litigating this rate case
are significant. Since this is the first time a future test period according to SB 477 is being
used, PNM has undertaken the significant effort to fully document and track to both the
FERC primary account and individual cost center the underlying rationale and cost
estimate for both the forecasted operating expense and plant investment. This has
required PNM to utilize outside expertise such as the ScottMadden firm. PNM has taken
action to control these costs to the extent possible consistent with the need for thorough
and effective presentation of PNM’s positions. A significant amount of preparation of the
case has been done by in-house PNM employees. Despite the requirements for the
preparation of the future test period, costs between this case and the last case are similar.
The proper handling of this case includes the assignment of qualified in-house counsel to
oversee and participate in proceedings, and qualified outside counsel with substantial
experience with the PUA, and with regulatory law in general, to efficiently and
effectively assist in this proceeding. PNM witness Carol Graebner describes in more
detail the steps PNM has undertaken to control legal costs generally. In addition, it is
both cost-effective and necessary to retain outside experts who have subject matter
expertise not available in-house on specific issues inherent in complex rate proceedings
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DIRECT TESTIMONY OFJAMES A. MAYHEW
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that involves as many issues as this case. Robert Hevert was hired to provide expert
financial evaluation and testimony concerning the cost of capital and the appropriate
capital structure for ratemaking purposes, which are the main components in a rate of
return determination. Earl Robinson was hired to provide testimony in support of the
new depreciation rates which PNM proposes to implement. PNM hired ScottMadden to
assist with the documentation and development of processes that are necessary to both
prepare and justify the use of a future test period. PNM retained Steven Fetter to provide
the benefit of his unique combination of experience as a state utility commissioner and
with a credit rating agency to help provide perspective surrounding PNM’s proposals in
this case. PNM hired Dr. Jonathan Lesser to provide an independent load forecast and
perform the required price elasticity study. Also, 17.9.530.1~3Q(6) NMAC requires that
PNM submit an opinion of an independent certified public accountant stating that an
independent examination of the book amounts and accounting adjustments of PNM’s
books and records has been made for the Base Period and that the results thereof are in all
material respects in compliance with the Uniform System of Accounts prescribed by the
Commission. The accounting firm of Deloitte & Touche provided this opinion. The
costs included in the projected rate case expenses for this case are necessary and
reasonable due to the number of expected parties and witnesses, the anticipated level of
discovery, the length of the hearing and the complexity of the issues. Combining the rate
cases for PNM North and PNM South has eliminated unnecessary duplication of time,
effort and resources that would have otherwise occurred had the rate cases been filed
separately.
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NMPRC UTILITY CASE NO. 10-00086-UT
PLEASE EXPLAIN PNM’S TREATMENT OF RATE BASE COSTS FOR
RENEWABLE ENERGY.
Per the 3137 Stipulation, PNM has been allowed to treat RECs and other renewable
energy assets as a regulatory asset for recovery in general rate cases. PNM has continued
to do so in this filing. The regulatory asset in this filing amounts to $712,667 and includes
Renewable Portfolio Standard ("RPS") compliance costs incurred since 2009. These
costs include RECs purchased in PNM’s small and large photo-voltaic ("PV") programs
and REC purchases from Southwestern Public Service Company ("SPS"). PNM has not
included in the revenue requirement for this case resources or RECs associated with the
supplemental Renewable Energy Plan ("REP") pending Commission approval in Case
No. 10-00037-UT ("REP Case").
The treatment of renewable energy resources under the 3137 Stipulation may be changed
effective one year after conclusion of this case. It is expected that new rates as a result of
this case will go into effect April 1, 2011. PNM intends to book additional renewable
assets acquired as a result of the Commission’s decision in the REP Case as regulatory
assets pursuant to the 3137 Stipulation for recovery within 36 months after acquisition.
PNM further intends to make a separate filing seeking implementation of a renewable
energy rate rider to be effective April 1, 2012, as allowed by the 3137 Stipulation.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
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WHAT ARE THE TEST PERIOD REVENUES UNDER EXISTING RATES?
To derive Test Period revenues, revenues were forecasted to reflect Test Period
customers for both PNM North and PNM South. The Test Period revenues for PNM
North reflect base fuel revenue at the current system rate of $0.020123 per kWh. I have
also shown in both PNM Exhibit JAM-5 and 530 Schedule A-1 the FPPCAC factor
adjustment that PNM is proposing to implement in July, 2010. PNM has calculated a fuel
and purchased power cost in the existing rates of PNM South that is reflective of costs
forecasted for 2010. The fuel and non-fuel revenues for PNM South are based on the
calculated fuel and purchased power cost. The base fuel rate being proposed for PNM
South is $0.0379673/kWh. Table JAM-2 reflects forecasted revenues for PNM North
and PNM South.
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PNM NorthForecasted Non-Fuel Revenue (excluding I&S
Fees) 535,815,367Forecasted Fuel Revenue 158,355,132Total Forecasted Base Revenues at Existing Rates 694 170,499
PNM South
39,345,35021,266,62760,611,977
I&S FeesFL el Factor - effective July 2010 PNM NorthMiscellaneous Service Charges & RevenuesTctal Forecasted Base Revenues
3,512,50718,126,088
1,475,588717,284,682
306,697
2,662,65363,581,327
FLel Factor effective July 2011(subject to change)Mi=.;cellaneous Revenues CreditsTotal Forecasted Revenues
PNM South
12,716,212730,000,894
4,687,285819,965
69,088,578
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DIRECT TESTIMONY OFJAMES A. MAYHEW
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PLEASE PROVIDE AN EXPLANATION FOR PNM’S FORECASTED SALES
(KWH), REVENUES, AND REVENUE CREDITS FOR THE TEST PERIOD.
PNM’s forecasted energy sales for 2011 are described in PNM witness Lesser’s
testimony. Dr. Lesser prepared the detailed forecast for the Test Period for the
Residential, Irrigation, Small Power, General Power and Large Power (just Commercial)
classes. These classes represent approximately 80% of PNM retail kwh sales. For the
remaining classes, Dr. Lesser reviewed the internal forecast and found them to be
reasonable. Dr. Lesser’s study includes PNM’s projected energy savings from energy
efficiency programs. PNM Exhibit JAM-7 contains a summary of forecasted sales for the
Test Period. Column A of this Exhibit has Dr. Lesser’s forecast for the classes he
describes in his testimony. Dr. Lesser’s high-level forecast is split into PNM North’s rate
classes so proper revenues can be estimated (Column D) including the internal forecasts
reviewed by Dr. Lesser. Column E, "Energy Efficiency Reductions", are reductions in
energy sales due to PNM’s various energy efficiency programs. The last column of this
table (Column G) has the blended forecasts that are the basis of the Test Period forecast.
DID DR. LESSER FORECAST THE IMPACTSOF ENERGY EFFICIENCY
PROGRAMS?
As noted by Dr. Lesser in his testimony, he did notforecast the impacts of energy
efficiency programs but relied on PNM’s forecast ofthe energy savings from these
programs.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
HOW HAS PNM ESTIMATED THE IMPACTS OF THE ENERGY SAVINGS
FROM THE ENERGY EFFICIENCY PROGRAMS?
PNM forecasted energy savings for each of its energy efficiency programs. The forecast
for each program is based on past participation and on the actual energy savings achieved
in 2008 and participation in the programs during the first half of 2009. PNM determined
the historical savings per commercial rate class using account numbers of participating
customers. The geographic distribution for residential customers, those in the PNM North
and PNM South areas, was determined through analysis of participant account numbers
and addresses, and through retailer sales records. The historical distribution by rate class
was applied to the forecasted energy savings to determine the impacts by rate class in the
Test Period.
ARE THERE MATERIAL DIFFERENCES THAT HAVE OCCURRED IN PNM’S
RETAIL SALES SINCE THE LAST RATE CASE?
Yes. The retail sales amount between the unadjusted Base Period kWh sales and the Test
Period kwh forecast are within 1% of each other. However, there has been a significant
change since the test period used in the 2008 Rate Case. The test period used in that case
was the twelve month period ending March 31, 2008, a fully adjusted Historical Test
Year Period consistent with prior Commission practice. In PNM Exhibit JAM-4, I have
shown the differences in energy sales using: a) annualized sales for the 2008 Rate Case
(phase II); b) Base Period sales; and c) the forecasted sales for the Test Period. In the
Exhibit, the decline in residential and industrial sales can be readily seen from the 2008
Rate Case Historical Test Year Period to the Base Period in this case. The decline in
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sales can be attributed to the loss of significant industrial customers on PNM’s system,
changing average use in the Residential, Small Power, General Power and non-industrial
Large Power customers, including the impact of the recession, weather and energy
efficiency. The significant change from the Historical Test Year Period used in the 2008
Rate Case to the Base Period in this case, part of the time frame when rates set in the
2008 Rate Case were in effect, is an example of how the use of a historical test period,
even when fully adjusted, can fail to reasonably forecast future operating conditions
during a time of changing economic conditions due to the limited adjustments allowed in
a historical test period. A sales forecast such as was done by Dr. Lesser for this case,
does not suffer from the same constraints and so is better able to consider evolving
economic conditions that can have a significant impact on the accuracy of the forecast.
Further, the significant change in residential sales and average customer use as a result of
energy efficiency underscores the rationale for my later proposal to implement a
decoupling tariff.
HOW IS THE COMPANY TREATING PNM SOUTH RATE 9 - INDUSTRIAL
POWER SERVICE AND RATE 11 -ECONOMY SERVICE-INDUSTRIAL
POWER SERVICE IN THIS CASE?
The Company is treating the revenues associated with these tariffs as a credit to the cost
of service of the PNM South rate classes. This results in an offset to their revenue
requirement of $3.0 million in the Base Period, and $2.5 million in the Test Period. Both
of these tariffs provide indirect access service to a very large single customer, who is
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unique in that PNM does not provide either generation or energy service through its
jurisdictional assets. Generation and energy service is procured in the market by contract
on behalf of that customer. This unique "buy through" arrangement pre-dates PNM’s
acquisition of the TNMP service territory in New Mexico. The tariff costs are reflective
of billing, customer service, transmission and backup service as needed. PNM has seen
dramatic changes in the level of energy and demand actually purchased and delivered to
this customer over the last two years. This has reflected the significant change in the
economy and demand for the customer’s product. This relationship, coupled with the fact
that the current rate levels closely reflect the cost of service ~br this arrangement, are the
reasons that PNM has chosen to treat the revenues from this customer as a revenue credit
to the other PNM South customers. Given the unique nature of service and the fact that
the fixed costs dedicated to this customer to provide for the delivery of the third party
purchases are relatively unchanged, it is reasonable to leave the rate levels unchanged and
to treat those revenues as a credit to the PNM South cost of service.
D. RATE BASE
Q. PLEASE DESCRIBE THE ADJUSTMENTS THAT WERE MADE TO RATE
BASE TO ARRIVE AT THE TEST PERIOD COST OF SERVICE.
A. The rate base adjustments made to arrive at the Test Period cost of service include
adjustments to: Plant, Accumulated Deferred Income Taxes, Regulatory Assets and
Liabilities, Miscellaneous Deductions and Additions, CWIP, and Working Capital.
These adjustments are included in the 530 Schedule H-16 along with supporting work
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papers. Also, I have described and detailed in PNM Exhibit JAM-3 the individual list of
projects that are being requested as plant additions for the Test Period.
HOW HAS PNM TREATED CWIP IN THIS PROCEEDING?
PNM has included the December 31,2011 CWIP balances for those projects that will be
in-service by March 31, 2012. Plant that is expected to be placed in service during the
Test Period does not accrue Allowance for Funds Used During Construction ("AFUDC").
PNM Exhibit JAM-3 identifies the individual CWIP projects and amounts being
requested.
WHAT ADJUSTMENT IS PNM PROPOSING FOR RECS?
As mentioned previously in my testimony, PNM is including
associated with RPS compliance costs incurred since 2009.
purchased through PNM’s Large and Small PV programs
included carrying charges for this purchase at a rate of 8.64% and is amortizing the asset
over three years as provided in the Case 3137 Stipulation.
a regulatory asset
The costs include RECs
and from SPS. PNM has
ARE THERE OTHER CHANGES TO RATE BASE IN THE TEST PERIOD?
Yes. These adjustments are described in the testimony of PNM witnesses Lovorn-
Marriage and Harland.
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E. FUEL EXPENSES
FNM NORTH
WHAT IS PNM REQUESTING FOR PNM NORTH FUEL?
PNM is requesting one adjustment to the current base fuel costs - a reclassification of
costs associated with fuel and waste handling and purchase of spinning reserves from
non-fuel base revenues to fuel base revenues. For purposes of inclusion of total costs,
and to reflect the existing FPPCAC adjustment factor in rates, I have shown in 530
Schedule A-1 and PNM Exhibit JAM-5 the FPPCAC factor that PNM is proposing to
implement on July 1, 2010. This factor is based on the current annual update cycle that
will run from July 1, 2010 through June 30, 2011. The current annual update cycle
reflects over and under recoveries of fuel and purchased power costs as compared to the
existing base fuel rate of $.002303 per kwh for the period of July 1, 2009 through June
30, 2010, plus a reforecast of fuel and purchased power for the period of July 1, 2010
through June 30, 2011. Per the stipulation approved in the 2008 Rate Case, carrying
costs for monthly over-recoveries are based on the pre-tax weighted average cost of
capital of 11.66% approved in the 2007 Rate Case. The weighted average cost of debt of
3.02% from the 2007 Rate Case is used for monthly under recoveries.
WHAT TIME FRAME HAS BEEN USED TO DETERMINE BASE FUEL FOR
THE TEST PERIOD?
PNM used the July 1, 2010 through June 30, 2011, time frame to determine the
appropriate base fuel rate which is consistent with the period that will be used to reset the
FPPCAC factor on July 1, 2010.
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NMPRC UTILITY CASE NO. 10-00086-UT
WHY IS PNM SEEKING TO RECLASSIFY FUEL HANDLING AND WASTE
DISPOSAL AS BASE FUEL COSTS FOR PNM NORTH RATES?
The costs for coal handling and ash disposal are direct costs associated with the use of
coal to produce power and vary directly with the quality and quantity of coal used in the
production of energy. Waste disposal associated with nuclear fuel is required by the
Nuclear Regulatory Commission to assure the safe handling of the waste products. These
costs vary directly with the quantity of fuel expended.
WHAT CHANGES IS PNM PROPOSING FOR SPINNING RESERVES?
The purchase of spinning reserves had historically been included in base fuel for PNM
North until the 2008 Rate Case, which implemented provisions from the Stipulation
approved in Case No. 08-00305-UT ("Resources Stipulation"). In that case it was agreed
that demand costs associated with long term purchased power contracts not be included
in the base fuel calculation except for two contracts that were to expire in the near term.
PNM then excluded the purchase of spinning reserves with other demand costs in that
case. However, the 2008 Rate Case reaffirmed that cost elements contained in FERC
Account 555 would be recovered through the FPPCAC. The purchase or use of on-line
generation for spinning reserves is an economic decision based on market and fuel prices
at the time. The source and cost of spinning reserves vary from month to month and, to
assure the customer pays the proper amount for reserves, all costs should flow through
the FPPCAC. Thus they should not be considered to be demand costs associated with
long term purchased power contracts. PNM is requesting that both PNM North and PNM
South’s base fuel costs reflect the addition of the cost for spinning reserves.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
DOES RULE 550 ALLOW FOR THE RECOVERY OF THESE COSTS AS FUEL
AND PURCHASED POWER COSTS?
Yes it does. 17.9.550.22 NMAC Appendix provides the FERC accounts that are allowed
in the fuel and purchased power cost calculation. These include FERC Accounts 501,
518 and 555. Fuel handling, fuel disposal and ash disposal are included in accounts 501
and 518. Purchase of spinning reserves is included in Account 555. Therefore, fuel
handling and ash disposal and purchases of spinning reserves are a portion of "the
amount actually expended for fuel and purchased power" and are appropriately a part of
base fuel rates. This was confirmed in the 2008 Rate Case Stipulation.
HOW HAS PNM CALCULATED THE NEW BASE FUEL COST FOR PNM
NORTH?
The current base fuel cost of $.020123/kWh has been increased to reflect the additional
cost of fuel and waste handling and spinning reserves included in the cost of service for
the Test Period. This results in a base fuel rate of $.021744/kWh.
IS PNM RECOMMENDING A NEW FPPCAC ADJUSTMENT FACTOR FOR
PNM NORTH IN THIS CASE?
No. PNM is recommending that the resetting of the annual FPPCAC factor continue on
the current schedule, i.e. each July 1. PNM has shown in its summary cost of service
revenue requirement as well as my summary revenue requirement in PNM Exhibit
JAM-5 what the proposed FPPCAC factor for July 1, 2010 to June 30, 2011 is for PNM
North. PNM will file for a new FPPCAC factor to be implemented on July 1,2011.
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NMPRC UTILITY CASE NO. 10-00086-UT
HAS THERE RECENTLY BEEN AN AUDIT OF PNM NORTH’S FPPCAC?
Yes. In accordance with the Final Order in Case No. 08-00092-UT ("FPPCAC Order")
the Commission retained Schumaker & Co. to conduct an extensive audit of PNM’s fuel
costs and purchasing and operating practices to assure that PNM would collect only
reasonable and actual costs through the FPPCAC. The Audit Report has been filed in
Case No. 08-00030-UT and responses to the Audit have been filed by PNM and Staff.
IS PNM PROPOSING TO COLLECT THE COSTS ASSOCIATED WITH THIS
FPPCAC AUDIT?
Yes. As provided for in the FPPCAC Order, PNM has included the costs of the FPPCAC
audit in the amount of $394,757 in Test Period O&M expenses. Because the Audit was
ordered as a result of authorizing a FPPCAC for PNM North, all the costs were assigned
to PNM North.
PNM SOUTH
WHAT IS PNM REQUESTING FOR PNM SOUTH BASE FUEL COSTS?
Based on 2010 projected costs, PNM has calculated base fuel costs and a base fuel rate
per kWh for the forecasted 2011 sales using existing rates. Using this base fuel rate,
PNM is proposing also to implement a FPPCAC for PNM South customers using the
same methodology employed for PNM North customers with the exception that carrying
charges on over- and under-recoveries should be symmetrical using the pre-tax weighted
average cost of capital ("WACC") in this case.
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NMPRC UTILITY CASE NO. 10-00086-UT
WHY HAS PNM CALCULATED A BASE FUEL RATE FOR PNM SOUTH?
To determine an appropriate allocation between base fuel costs and non-fuel base costs in
existing rates, PNM utilized the stipulated allocation of the gas generating units as well as
purchased power costs for calendar year 2010 to calculate what the fuel costs should be.
PNM South existing rates are based on the TNP Stipulation. The 3137 Stipulation, the
Alton Stipulation and the Resource Stipulation specifically allocate resources to PNM
South. The stipulated generation resources and their related energy costs are being used
to set the base fuel rate for PNM South.
PLEASE DESCRIBE THE METHODOLOGY CURRENTLY APPROVED FOR
PNM NORTH THAT WILL BE USED FOR THE CALCULATION OF PNM
SOUTH BASE FUEL COSTS.
Using hourly data after the fact, the energy from all resources are allocated each hour to
PNM North, PNM South, FERC and Other. The energy, by jurisdiction, is compared to
total load and losses for each jurisdiction. If there are excess resources, those resources
are assumed to be sold at market prices for that hour. If there is a shortfall of resources, it
is assumed that purchases are made from the market for that hour. So, if PNM North
resources are used to serve PNM South load in any hour, PNM North customers receive a
sales credit against the cost of fuel. PNM South customers pay for that energy as though
it was purchased from the market.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
DOES THIS MEAN PNM SOUTH RETAINS 50% OF THE ENERGY OUTPUT
OF THE AFTON STATION TO SERVE PNM SOUTH LOAD?
Yes, PNM South retains 50% of Afion Station’s energy output in terms of energy
allocation and accounting. Fifty percent of the output and the associated fuel cost for
Alton are allocated to PNM South. If that energy is not needed specifically to serve
PNM South load, then PNM accounts for the remainder of the energy as an intra-
company transaction where it is priced to PNM North at the prevailing market price or
sold into the market. PNM South fuel costs are then credited for this excess. That does
not mean, however, that 50% of the energy produced at Afion is necessarily physically
delivered to PNM South. When Afion is running, power is dispatched to the total system
load. Since PNM acquired the New Mexico assets of TNMP, PNM has been operating
both North and South as one system. For purposes of dispatching units to serve load,
planning for resources to serve the system, and in operating the system, PNM North and
PNM South, as well as PNM’s other loads, are treated as one system without distinction
to the resources that are utilized to serve customers.
HOW HAS PNM DETERMINED THE BASE FUEL COST FOR PNM SOUTH?
The base fuel rate for PNM South was based on the forecasted fuel cost for calendar year
2010. These costs include PNM South’s share of Afion, Luna, Lordsburg, Valencia and
other purchased power as well as a credit for off-system sales. The methodology to
determine the costs is consistent with the calculation of base fuel costs for PNM North as
determined in the 2008 Rate Case including the credit for off-system sales.
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NMPRC UTILITY CASE NO. 10-00086-UT
WHY IS PNM USING CALENDAR YEAR 2010 TO SET ITS BASE FUEL COST
FOR PNM SOUTH RATHER THAN THE TEST PERIOD OF 2011?
Resources used to serve PNM South customers are either owned gas resources or market
purchases. The costs for these resources constantly fluctuate and are incapable of precise
determination into the future as recent events have shown, supporting the need for a
FPPCAC. Forward market prices are not necessarily a good indicator of future spot
prices and become less reliable further out in time. PNM is proposing to recover fuel and
purchased power costs for PNM South by using a base fuel rate and an annual FPPCAC
factor which will result in PNM collecting only actual costs of fuel and purchased power
through the use of a balancing account as is the case with PNM North. PNM is proposing
to set the initial FPPCAC factor to zero. The base fuel rate becomes the measurement by
which monthly over or under recoveries against actual fuel and purchased power costs
are determined. The annual FPPCAC factor that is implemented each July accounts for
any difference between projected and actual expenses. The base fuel rate should be set
using a reasonable number that is relatively stable and at a level that should not typically
result in a significant monthly over or under recovery. By setting the base fuel rate using
calendar year 2010, PNM has attempted to both capture the recent low historical gas
prices as well as to move closer to what the anticipated market prices for gas are in 2011.
The FPPCAC will adjust for any over or under recovery resulting from the setting of the
base fuel rate.
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WHY IS PNM PROPOSING A FPPCAC FOR PNM SOUTH?
Under current circumstances, the South is subject to even greater volatility in prices for
its fuel costs than that of the North. For ratemaking purposes, PNM South currently relies
on natural gas resources and power purchases at market rates for 100% of its energy
supply. The costs of gas and purchased power fluctuate frequently which means that the
costs of fuel and purchased power for PNM South cannot be precisely determined in a
general rate case. In addition, these costs represent a significant percentage of PNM
South’s total cost of service such that even slight variations in the kWh cost can have a
material effect on PNM South’s earnings. A FPPCAC is the most effective way to match
fuel and purchased power costs with revenues so that customers pay only for the actual
fuel and purchased power costs allocable to PNM South.
DOES PNM’S FPPCAC PROPOSAL SATISFY THE PURPOSES OUTLINED IN
RULE 550?
Yes, the FPPCAC proposed for PNM South is consistent with the objectives of Rule 550,
including providing for adequate regulatory review of a utility’s operations under the
FPPCAC; providing for the stability of utility earnings when electric fuel costs and
purchased power costs are rising and permitting prompt credits to customers when
electric fuel costs and purchased power costs are declining; assuring that PNM collects
through the FPPCAC the amount actually expended for fuel and purchased power; and
allowing the flow-through to electric customers of the increases or decreases in costs of
delivered energy above or below a base cost of fuel and purchased power.
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NMPRC UTILITY CASE NO. 10-00086-UT
WHAT ARE THE FILING REQUIREMENTS UNDER RULE 550 WHEN A
UTILITY SEEKS APPROVAL OF A FPPCAC?
Rule 550, Section 17, provides that a utility seeking to have a FPPCAC included in its
tariff shall submit testimony showing that all the purposes stated in Rule 550, Section 6,
above, are met and that:
1. the cost of fuel and purchased power are a significant percentage of the total cost
of service;
2. the cost of fuel and purchased power contains costs which periodically fluctuate
and cannot be precisely determined in a rate case; and
3. the utility’s fuel and purchased power policies and practices are designed to
, assure that electric power is generated and purchased at the lowest reasonable
cost.
ARE PNM SOUTH’S COSTS OF FUEL AND PURCHASED POWER A
SIGNIFICANT PERCENTAGE OF ITS TOTAL COST OF SERVICE?
Yes. The cost of fuel and purchased power were over 29.9% of PNM South’s cost of
service during the Base Period. The cost of fuel and purchased power is projected to be
over 36.4% of PNM South’s total cost of service during the Test Period. These are
significant percentages. By comparison the Commission has previously found that 20%
is a significant percentage for these purposes. PNM South’s fuel and purchased power
costs are its largest single category of costs reflected in the Test Period.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
DOES PNM’S PROPOSAL TO INCLUDE A FPPC, AC IN PNM SOUTH’S
TARIFF MEET THE SECOND OF THE THREE REQUIREMENTS UNDER
RULE 550, SECTION 17 -NAMELY THAT THE COST
PURCHASED POWER CONTAINS COSTS WHICH
FLUCTUATE AND CANNOT BE
CASE?
OF FUEL AND
PERIODICALLY
PRECISELY DETERMINED IN A RATE
Yes. Prices for natural gas and power are generally accepted as being highly volatile such
that they can fluctuate to a great extent on a frequent basis. PNM Exhibit JAM-8 is a
chart showing daily natural gas prices at the Permian Basin tbr the period 2006 to 2010.
The volatility of the price of natural gas shown in the Exhibit is the result of a myriad of
factors affecting demand and supply, including political uncertainty throughout the
world, weather phenomena such as hurricanes in the Gulf of Mexico, and other external
and global factors. Additionally, speculation and trading activity can influence both the
natural gas and power markets. These factors make it very difficult to precisely determine
fuel and purchased power costs in a rate case. PNM Exhibit JAM-8 also shows the
average daily price for firm day-ahead energy at the Palo Verde Hub, which is a standard
for pricing in the Southwest wholesale electricity markets. This chart shows that the cost
of energy in the market is subject to significant daily fluctuations. Given the TNP
Stipulation and the 3137 Stipulation, PNM South’s energy costs are entirely dependent
on natural gas and purchased power prices.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
DOES PNM’S PROPOSAL TO INCLUDE A FPPCAC IN ITS TARIFF MEET
THE THIRD OF THE THREE REQUIREMENTS UNDER RULE 550, SECTION
17 - NAMELY THAT THE UTILITY’S FUEL AND PURCHASED POWER
POLICIES AND PRACTICES ARE DESIGNED TO ASSURE THAT ELECTRIC
POWER IS GENERATED AND PURCHASED AT THE LOWEST
REASONABLE COST?
Yes. PNM’s fuel and purchased power policies and practices are designed to assure that
electric power is generated and purchased at the lowest reasonable cost. This was
confirmed by the Commission’s Audit performed in Case No. 08-00330-UT for the
FPPCAC for PNM North. These policies and procedures include diversification of fuel
mix and generating technologies, the use of economic dispatch on an hourly basis to
supply jurisdictional needs from the lowest cost resources, and purchasing energy from
the spot market if it is less expensive than operating jurisdictional resources. PNM’s
overall fuel procurement strategy is to maintain an economical and reliable fuel supply
for all its generating stations to ensure that electric power is generated and purchased at
the lowest reasonable cost while considering fuel supply reliability, market conditions,
environmental impacts, and system reliability. In doing so, PNM regularly monitors and
aggressively administers its fuel contracts, and updates its fuel use plans to assure that its
fuel and purchased power costs are reasonable. Purchased power is acquired on a short-
term and long-term basis. Short-term purchases are made from suppliers in the wholesale
market at competitive prices on an hourly basis. With the development of electronic
trading platforms, the long-term power markets are now relatively transparent. Long-
term power can be acquired competitively through the Use of electronic trading platforms,
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NMPRC UTILITY CASE NO. 10-00086-UT
requests for proposals or brokers. PNM may use a combination of these means to
procure long-term power. Given the constraints of the stipulations discussed earlier in
my testimony, PNM South is being served at the lowest reasonable cost of fuel and
purchased power.
WHAT CARRYING CHARGE IS PNM PROPOSING FOR ANY UNDER OR
OVER RECOVERIES FOR PNM SOUTH?
PNM is proposing that the recommended pre-tax WACC of 13.26% be used for both
monthly over and under recoveries in the South balancing account. Because of the time
value of money, appropriate carrying charges on under-recovered balances are necessary
to allow the Company to fully recover its actual costs of fuel and purchased power as
contemplated by Rule 550. In order to be compensatory, carrying charges on under-
recovered balances should be calculated at the pre-tax WACC determined in this case,
effective April 1,2011. In order to provide symmetry, the Company proposes that the
monthly carrying charge on over-recovered balances also be set at the pre-tax WACC
determined in this case, effective April 1,2011.
DOESN’T THE USE OF AN ASYMMETRICAL CARRYING CHARGE
PROVIDE AN INCENTIVE FOR THE COMPANY TO ACCURATELY
PREDICT ITS FUEL AND PURCHASED POWER COSTS?
No. On the contrary, it penalizes the Company when its base fuel rates plus any
FPPCAC factor happen to project those costs at too low a level. The Company attempts
to make accurate predictions of its fuel and purchased power costs so that it can recover
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those costs timely and not have to refund revenues to customers. The theory that
asymmetrical carrying charges provides an incentive for the Company to accurately
predict its fuel and purchased power costs is counterintuitive to one of the primary
reasons for a FPPCAC--that those costs cannot be precisely determined in a rate case.
Thus, as a fundamental matter of fairness in properly balancing the interests of investors
and customers, the Commission should apply symmetrical carrying charges to monthly
over and under recoveries at a compensatory rate, i.e. the pre-tax WACC determined in
this case.
DO YOU HAVE A PROJECTION OF WHAT THE REVENUES AND FACTOR
WOULD BE FOR PNM SOUTH USING CURRENT FORWARD MARKET
PRICES FOR THE PERIOD OF JULY 2011 TO JUNE 2012?
Yes. Using current forward market prices for gas and market purchases, PNM has
estimated the FPPCAC factor would be $.0083892/kWh for PNM South to recover
$4,687,285 for the period of July 2011 to June 2012. This would raise the fuel and
purchased power cost for PNM South from $0.0379673/kWh to approximately
$0.046357/kWh. This projection is subject to change and will be updated closer to the
implementation day. PNM is proposing an annual FPPCAC factor for the South to match
the methodology for the North. However, given the greater volatility in allocated fuel and
purchased power costs for PNM South due to the stipulations discussed previously, the
Commission may want to consider a FPPCAC for PNM South that adjusts more
frequently (such as quarterly or semi-annually or if the balancing account becomes too
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large in either direction) to prevent large adjustments to the FPPCAC factor at any one
time, until the cost of service for PNM North and South is consolidated.
IS PNM PLANNING TO UTILIZE A HEDGING PROGRAM TO MANAGE
FUEL COSTS?
Yes. PNM also intends to apply the hedging guidelines and requirements approved in
Case No. 09-00321-UT to the fuel and purchased power porttblio for PNM South.
F. OPERATION AND MAINTENANCE ("O&M") EXPENSES
Q, WHAT ARE THE SIGNIFICANT O&M EXPENSES IN THE TEST PERIOD?
A. In 530 Schedule H-16 and associated work papers, I have identified the O&M expenses
that differ from the Base Period by more than $1 million as a result of the ScottMadden
study. Major adjustments in the Test Period are included for:
a) Scheduled Plant Maintenance;
b) Pension Expenses;
d) Depreciation Expense;
e) removal of Corporate Retained Costs from Management Fee;
f) removal of earnings based incentive compensation from Management Fee; and
g) removal of non-operating expenses from Management Fee.
Scheduled Plant Maintenance is further explained by PNM witness Themig. The changes
in pension expenses are explained by PNM witness Vogl. PNM witness Robinson
explains the requested change in the depreciation rates for PNM. PNM witness Lovorn-
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Marriage discusses management fees. All of the O&M adjustments are summarized in
530 Schedule H-16 and supporting work papers.
IS PNM PROPOSING AN ADJUSTMENT TO FORECASTED PLANT
MAINTENANCE COSTS?
Yes. PNM is including an average of three years of forecasted plant maintenance costs
for the period of2011 through 2013 in order to normalize the Test Period in recognition
of the plant scheduled maintenance cycles. Since scheduled maintenance costs change
from year to year, PNM believes that including a three year average of these costs in rates
is the best reflection of costs for PNM’s normal operations. The Commission has
traditionally used a "rule of thumb" of three years to assume the average length of time
between rate changes, as is the case for the amortization period for rate case expenses.
This rule of thumb is also used for calculating costs and benefits associated with
customer distributed generation. PNM witness Themig describes the scheduled
maintenance cycles in more detail and provides the explanation for how these costs were
forecasted. The result of the three year average of scheduled maintenance costs is an
increase to production O&M in the amount of $2.6 million. Additionally, PNM included
an offsetting rate base reduction for the three year maintemmce average adjustment of
$2.6 million. The forecast of Test Period scheduled maintenance costs is outlined in 530
Schedule H-16 and scheduled maintenance supporting work papers.
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WHAT ADJUSTMENTS HAVE BEEN MADE TO THE MANAGEMENT FEE?
Please see the testimony of PNM witness Lovorn-Marriage for the adjustments to the
management fee, pension and retirement.
IS PNM PROPOSING NEW DEPRECIATION RATES WITH THIS FILING?
Yes. As testified to by PNM witness Robinson, PNM recently completed a new
depreciation study. PNM is filing this study with the Commission and is proposing that
new depreciation rates be adopted effective with the rates set in this case. PNM does not
intend to implement the new depreciation rates until they have been approved by the
Commission in this case. PNM has adjusted accumulated depreciation reserve and
depreciation expense in the Test Period to reflect new depreciation rates calculated in the
study effective April 1,2011.
Depreciation expense for new plant additions was included in the Test Period on a
normalized basis. This means that the additional depreciation expense was determined for
the period of time when the plant is forecasted to be in service during the Test Period. For
example, if a plant addition is forecasted to be in service in July 2011, then the additional
depreciation expense and related accumulated depreciation expense was determined for
the period of July through December 2011 rather than on a full year as is done with
annualizing a historical test period. This approach better represents the actual operations
and expenses of the Company during the period when rates go into effect.
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PLEASE SUMMARIZE THE REVENUE INCREASE REQUESTED FOR PNM
NORTH AND PNM SOUTH.
In PNM Exhibit JAM-5, I have shown a summary of the requested non-fuel increase for
PNM North and PNM South, the requested base fuel cost for PNM North and PNM
South, and the overall percentage increase for each area. Table JAM-3 summarizes the
revenue deficiency for PNM North and PNM South. As shown in Table JAM-3 the Test
Period revenue requirements are 21.3% higher than forecasted 2011 revenues for PNM
North, and 19.4% higher than forecasted 2011 revenues for PNM South.
PNM North PNM SouthNon-fuel Revenue Requirement 675,145,091 51,527,861Fuel Revenue Requirement 171,107,948 21,340,009Total Revenue Requirement as Requested 846,253,039 72,867,870
I&S FeesFuel Factor - July 2010 adjustment PNM NorthMiscellaneous Service Charges and RevenuesTotal Retail Revenue Requirement
4,282,046 368, 71218,126,088
1,475,588 2,662,653870,136,761 75,899,235
Non-fuel Forecasted Revenues (excluding I&S Fees)Fuel Forecasted RevenuesTotal Forecasted Base Revenues at Existing Rates
535,815,367 39,345,350158,355,132 21,266,627694,170,499 60,611,977
I&S FeesFuel Factor - effective July 2010 PNM NorthMiscellaneous Service Charges & RevenuesTotal Forecasted Base Revenues
3,512,507 306,69718,126,O88 -1,475,588 2,662,653
717,284,682 63,581,327
Total Non-Fuel Revenue DeficiencyTotal Fuel Revenue DeficiencyI&S Fees DeficiencyTotal Revenue Deficiency
(139,329,724) (12,182,511 )(12,752,816) (73,382)
(769,539) (62,015)(152,852,079) (12,317,908)
% non-fuel ~ncrease over total forecasted revenues 19.4% 19.2%% I&S fee increase over total forecasted revenues 0.1% 0.1%% fuel increase over total forecasted revenues 1.8%. " 0.1%% total increase over total forecasted revenues 21.3% 19.4%
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As noted, for comparison purposes and to provide an estimate of the total cost for PNM
North and South, I have included in PNM Exhibit JAM-5 and Table JAM-3 the FPPCAC
factor for the North that is pending before the Commission for implementation in July,
2010, and an estimate of what the FPPCAC factor may be in July, 2011, for PNM South.
G. PHASE-IN
Q. IS PNM PROPOSING TO IMPLEMENT THE FULL AMOUNT OF ITS
PROPOSED RATE INCREASES WITH THE COMMISSION DECISION IN
THIS CASE?
No. As explained by PNM witness Damell, if the Commission approves the full rate increase
requested by PNM, PNM is proposing the rate increase be implemented in two phases, as
shown in PNM Exhibit JAM-5, effective April 1, 2011, and January 1, 2012. PNM
Exhibit JAM-5 provides a summary of the proposed phase-in schedule. As part of the
proposed phase-in, PNM has included four sets of tariff sheets in its filings. These
include two sets of tariffs for PNM North and two sets of tariffs for PNM South,
representing the two phases. PNM is requesting that the Commission approve its
requested rate relief as filed, with the one exception being approval of the decoupling
proposal. PNM is submitting the decoupling proposal as an alternative to the increased
monthly customer service charge for residential and small commercial customers for
PNM North.
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HOW DOES PNM PROPOSE TO STRUCTURE THE ILX.TE PHASE-IN?
PNM proposes that the first phase-in for PNM North would be a total increase of
$111,142,671 of which $98,389,855 is attributable to non-fuel base rates and
$12,752,816 is attributable to base fuel. This would be an approximate 16% increase in
rates for PNM North. The second phase would be an approximate 6% increase consisting
of $41,709,408 attributable to non-fuel base rates. For PNM South, the first phase would
be a total increase of $8,672,550 consisting of $8,599,168 attributable to non-fuel base
rates; and $73,382 attributable to base fuel. This would be an approximate 14% increase
for PNM South. The second phase would be an approximate 6% increase consisting of
$3,645,358 attributable to non-fuel base rates. The non-fuel difference in percentage
increase between PNM North and PNM South is a function of the existing higher non-
fuel cost per kWh for the South as well as the significant fuel expense contained in the
South’s rates.
III. CUSTOMER CLASS COST-OF-SERVICE
530 SCHEDULE K-4 EMBEDDED CONTAINS FULLY ALLOCATED COST-OF-
SERVICE STUDIES FOR PNM NORTH AND PNM SOUTH. WHAT IS THE
PURPOSE OF THESE STUDIES?
Fully allocated embedded cost-of-service studies are used for a number of reasons in the
ratemaking process. PNM advocates the use of the cost-of-service studies provided in
530 Schedule K-4 Embedded to define customer class cost responsibility, allocate
revenue requirements to class based upon the relative performance of each class
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compared to system average, and provide cost-based pricing information (S/kWh,
S/customer, etc.) useful in the design of rates. Cost-of-service studies are provided for
both PNM North and PNM South.
IS THIS A CHANGE FROM WHAT PNM HAS DONE IN THE PAST?
Yes. In past cases PNM utilized a marginal cost study to assign revenue responsibility by
customer class. In this case we are using the fully allocated embedded cost-of-service
studies provided in 530 Schedule K-4 Embedded for this purpose. The marginal cost
study developed for this case is used as a tool in price signal determination and rate
design.
WHY IS PNM ADVOCATING THE MOVE FROM A MARGINAL COST STUDY
TO THE USE OF A FULLY ALLOCATED, EMBEDDED COST-OF-SERVICE
STUDY?
Fully allocated embedded cost-of-service studies can provide stable results over time
when allocation methodologies are consistent; such stability is a key reason why most
utilities (including those in New Mexico) employ such studies in the ratemaking process.
Embedded and marginal cost analyses each have rationales for their utilization.
An embedded study reflects the actual jurisdictional revenue requirement being requested
by the company including net plant-in-service and current operating costs. By contrast a
marginal cost study calculates the incremental cost of providing service to each customer
class. A marginal study uses the last investment or forecasted investment to calculate the
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costs of resources to be allocated to customer classes. Because true marginal cost
pricing is not tied to a revenue requirement as determined in utility rate proceedings,
marginal cost studies require adjustment mechanisms to bring marginal cost calculated
revenue requirements in line with actual revenue requirements. These adjustments
invariably introduce volatility in the results as marginal costs (and the necessary
adjustments) vary considerably from study to study. Such volatility can bring instability
in rate design especially when the marginal study is used as the primary basis for revenue
assignment to customer classes.
Because costs at the margin can be volatile, the marginal costs of service applied to class
billing determinants can also be very volatile over time. While this volatility is reflective
of the incremental costs of providing service, it is not necessarily reflective of the
underlying costs of service for a company’s non-fuel cost of service.
CAN YOU DESCRIBE THE VOLATILITY OF MARGINAL COSTS IN MORE
DETAIL?
Yes. Marginal cost studies are heavily influenced by the incremental investment cost
determination used for the marginal generation, transmission, or distribution plant. A
heavy emphasis on distribution system upgrades in one year can produce drastically
different marginal cost results from a year in which transmission investment is high. The
proportion of generation, transmission, and distribution costs to total costs in a marginal
cost study may be drastically different from the plant actually in place to serve customers.
Allocating revenue requirements to customer classes in a year in which transmission
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investment is the key driver will produce different results from a year in which the
primary driver is distribution or generation investment. The potential for such
differences brings a level of volatility to marginal cost results which are not inherent in a
fully allocated embedded cost study.
However, the marginal cost approach results in a revenue imbalance where the marginal
study shows that the marginal costs being used are either higher or lower than the
embedded study and some form of reallocation, such as Ramsey Pricing,~ must be made
to match the jurisdictional revenue requirement at the marginal class level. Ironically,
marginal cost theory dictates that the class customer charge should be adjusted to balance
the jurisdictional revenue requirement due to its inelastic nature. This charge may be the
most difficult to change, especially for residential customers, ibr a number of reasons.
PNM Exhibit JAM-9 illustrates the functional disparity between the marginal cost study
and the embedded cost-of-service studies filed in this case. Total costs by function
(generation, transmission, distribution, customer) in the marginal cost study are shown
alongside those found within the jurisdictional revenue requirement. PNM has a heavy
investment in nuclear and coal generation facilities which comprise the largest
component of costs in the jurisdictional revenue requirement ibr PNM North. However,
because the generation costs in the marginal cost study are based on a single-cycle gas
turbine, generation costs in the marginal cost study contribute significantly less to the
1 Ramsey Pricing means that price increases should be applied to the products or services with the most inelastic
den land because customers will buy them anyway.
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overall marginal cost study revenue requirement. Such disparity leads to differing
revenue requirement results if marginal cost studies are used as the basis for revenue
allocation.
The change in functional revenue requirements can also be seen in a comparison of the
marginal cost study prepared for the 2008 Rate Case and the study being filed in this
case. A review of PNM Exhibit JAM-10 indicates that marginal transmission costs are
the primary cost element in the marginal cost study filed in this case. Distribution costs
were the primary cost element in prior cases. Transmission cost incurrence is much
different from distribution cost incurrence and customer class contributions to each vary
considerably. Embedded cost-of-service studies serve to moderate the allocation changes
given the "average cost" nature of the studies. Marginal cost studies have no such
dampening mechanism and disparate impacts are the result.
DOES THE VOLATILITY OF MARGINAL COSTS INVALIDATE THEIR USE
IN RATE DESIGN?
No, marginal costs have value in rate design. Their primary value in this case is their use
as guides in developing the relationship among customer, energy and demand related rate
elements within individual rate classes. Cost differentials :for daily TOU periods and
seasonal price distinctions are of key importance to PNM. They provide guidance for
pricing on and off peak as well as for pricing the inclining blocks for the residential rates
for PNM North.
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PNM utilizes marginal cost information in this way. For example, in developing the on-
peak and off-peak rate elements for the TOU tariffs being proposed for PNM South,
PNM examined the relative on-peak and off-peak costs by season to determine the price
differential to charge for TOU energy rates.
PLEASE DESCRIBE THE DEVELOPMENT OF THE FULLY ALLOCATED
COST-OF-SERVICE STUDIES CONTAINED IN 530 SCHEDULE K-4
EMBEDDED.
The development of the fully allocated cost-of-service studies provided in K-4 Embedded
consisted of three major steps: 1) functionalization, 2) classification, and 3) allocation or
assignment. Functionalization is the process of categorizing embedded costs by the
operating function in which the costs are primarily associated such as production,
transmission, distribution, customer service, etc. Classification is the process of further
defining the functional costs into demand-related (i.e., costs associated with being able to
serve customers at the system and class peaks), energy-related (i.e., costs that vary
volumetrically with the amount of energy used by customers), an6 customer-related (i.e.,
costs that are directly related to the number of customers served). PNM followed
industry standard methods prescribed by the National Association of Regulatory Utility
Commissioners ("NARUC") for functionalizing, classifying, and allocating costs to
customer classes.
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WHAT CRITERIA DID PNM USE IN THE SELECTION AND DEVELOPMENT
OF THE VARIOUS ALLOCATION FACTORS USED TO ASSIGN COSTS TO
CUSTOMER CLASSES?
PNM used the following criteria, although not an exhaustive list, to judge the
appropriateness of an allocation methodology: 1) the method should reflect the operating
and planning characteristics of PNM’s utility system; 2) the method should recognize
various customer class characteristics such as peak demand, energy usage, load factor,
diversity characteristics, number and size of customers, points of delivery, etc.; 3) the
method should produce stable results from year-to-year; and 4) customers who benefit
from the use of plant and equipment should bear the costs.
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PLEASE DESCRIBE THE DEVELOPMENT OF THE ALLOCATION FACTORS
USED IN THE ASSIGNMENT OF COSTS.
As I mentioned previously, PNM very closely followed the NARUC prescribed methods
for cost functionalization, classification, and allocation. The 530 Schedule M-2 contains
a detailed list of the classification and allocation factors used in the development of the
PNM North and PNM South cost-of-service studies.
Production rate base costs were allocated to customer classes using a modified average
and excess ("AED") demand allocation methodology. Transmission costs were allocated
to customer classes using an average of PNM’s monthly coincident peaks ("12CP").
Distribution substations, primary lines, and secondary lines were allocated to customer
classes using the maximum non-coincident peak demands of each class (NCP) at either
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primary or secondary voltage levels. Other components of distribution were allocated to
class based upon detailed analysis specific to the cost type (meters, services, etc.) and
reflective of the number of customers served. General plant and other ancillary rate base
items were allocated to customer classes using industry standard methods which use the
results of prior allocations (production plant, total plant-in-service, labor, etc.) to allocate
such costs to customer classes.
Operating expenses, such as production O&M, are allocated to customer class on the
basis of the associated plant-in-service (e.g., production) or a combination of associated
investment. Fuel and other energy-related O&M expenses were allocated to customer
class using annual energy deliveries (kWh). All other expenses were allocated to
custonler class using a combination of allocation methods or results which underlie the
reason for the expense.
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WHAT ALLOCATION METHODOLOGY WAS USED BY PNM TO ALLOCATE
PLANT TO CUSTOMER CLASSES?
PNM is using a modified AED method using two summer and two winter coincident
peaks ("AED 2S2W 4CP" or "AED-PNM") for allocating fixed costs associated with
production plant to customer classes. AED allocation methodologies reflect the dual
nature of production plant investment; i.e. production or generation costs in the aggregate
are expended to meet both energy and demand requirements of customers. The
demand/energy classification of production plant is a key issue and one that underlies the
allocation of a large component of fixed costs to PNM’s customer classes. For
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distribution plant the predominant expenses were based on non-coincident peak demand
utilizing primary and secondary voltage differences. Customer and metering costs were
weighted for meter cost and meter size.
PLEASE DESCRIBE THE DEVELOPMENT OF THE AED-PNM ALLOCATION
FACTOR.
The AED-PNM method considers that average demand (or annual energy usage .’- 8760)
is a significant cost driver along with coincident peak demands. Under the AED-PNM
method, the average demand is considered to be equal to the system load factor and is
allocated using annual kWhs of each customer class at the generator level. The "excess"
portion is allocated to each class using the average of each class contribution to four
system coincident Feaks, the two highest in the summer months and the two highest in
the winter months. The use of coincident peak demands for allocation of the "excess" or
demand component of production plant is consistent with the principle that generation
resources are built to meet peak demands as well as to provide energy throughout the day.
The choice of both summer and winter peak demands reflects the fact that PNM is not
solely a, summer peaking utility since winter coincident peak demands are approaching
75% of those experienced in the summer. This is especially true for the PNM’s
Residential Rate Class which has in 2006, 2007 and 2008 experienced winter peaks
greater than the summer peak. For 2009 the residential winter peak was 79% of the
summer peak. The similarity of the peak demands in the winter and the summer is a
reflection of the PNM residential class use and that individual use is changing as a result
of the appliance mix being used by those customers.
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PLEASE DESCRIBE THE DEVELOPMENT OF THE TEST PERIOD PEAK
DEMAND AND ENERGY THAT ARE USED IN THE CLASS COST OF
SERVICE.
For both PNM North and PNM South, the Test Period energy deliveries were determined
by rate class using the load forecast described earlier in my testimony. The one exception
to this methodology relates to the PNM South unmetered lighting classes 4 and 14, where
the unmetered monthly energy deliveries were recalculated in a manner consistent with
flat energy deliveries calculated by light type used for PNM North.
DID PNM CONSIDER OTHER ALLOCATION METHODS FOR ALLOCATION
OF PRODUCTION PLANT?
Yes. PNM considered a number of other standard allocation methods which are used in
the industry. While each allocation method has merit depending on the utility’s specific
circumstances, the AED-PNM method best reflects the load characteristics of the PNM
system. The alternative allocation methods considered included the following:
1) 4 Coincident Peak (4CP) Method using an average of customer class contributions to
the four highest coincident peak demands during the Test Period; 2) 12CP Method using
an average of customer class contributions to all twelve of PNM’s coincident peak
demands during the Test Period; and 3) variants of the AED method including the
traditional method in which the "excess" portion is allocated using customer class NCP
demands.
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I have shown in PNM Exhibit JAM-11 the allocation percentages of the methods
described above to PNM North and PNM South rate classes as well the respective
revenue requirements under each of the methodologies. I have also traced in the Exhibit
the revenue allocation that would have resulted from using the marginal cost study
allocation approach.
WHY WERE THESE METHODS REJECTED IN FAVOR OF THE AED-PNM
ALLOCATION METHOD?
For PNM, the AED-PNM method best reflects cost causation and results in just and
reasonable allocations to customer classes. For production, or generation, resources cost
causation attempts to determine what influences a utility’s production plant decisions. For
most utilities, including PNM, a portion of generation costs is expended to meet the
Company’s energy requirements in a low cost, reliable manner. Similarly a portion of
generation costs are expended to meet peak demand requirements. PNM, along with
many other utilities, believes that production plant allocation methods which reflect both
the energy and the demand component of generation investment and usage best reflect
cost causation. As a customer’s load factor increases, the AED method recognizes the amount
of increasing capacity used to provide continuous service in the allocation of costs. Allocation
factors (CP, 4CP, 12CP) assume that all generation resources are built solely to meet
peak demands and do not adequately reflect the investment and usage decisions which
underlie base load generation investment. The AED-PNM allocation method does not
have this limitation and is believed to best reflect both the investment and load
characteristics of the PNM system.
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IV. RATE DESIGN
WHAT ARE PNM’S RATE DESIGN OBJECTIVES?
These objectives include: 1) understandability and applicability; 2) rate stability both in
terms of impact on customer and impact on revenues of the Company; 3) reflection of
actual costs to serve within a given season or time period coupled with the price elasticity
of New Mexico customers to rate changes; 4) effectiveness in recovering the targeted
revenue requirements within a given customer class; 5) encouragement of energy
efficiency, where warranted, through the use of design techniques such as inclining block
pricing (residential); and 6) mitigation of inter-class customer class subsidization through
appropriate revenue allocation mechanisms.
DID THE COMPANY CONDUCT A PRICE ELASTICITY STUDY AS
REQUIRED BY THE COMMISSION TO ASSIST IN DEFINING BASIC USAGE
FOR RESIDENTIAL CUSTOMERS?
PNM contracted with Dr. Jonathan Lesser of Continental Economics, Inc., to conduct a
price elasticity study to meet the requirements of the Stipulation in the 2008 Rate Case
which implemented a revised directive of the Commission from the 2007 Rate Case. Dr.
Lesser presents the price elasticity study in his testimony. The results of the study were
presented at a workshop conducted by PNM on January 15, 2010.
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PLEASE SUMMARIZE THE ELASTICITY STUDY RESULTS.
The elasticity study respondents were evaluated to ensure their energy consumption and
behavior and household income was representative of all PNM’s residential customers
and the results indicated they were representative. The elasticity study results indicated
that lower income customers are more sensitive to changes in electric prices than higher
income residents. Price elasticity was also estimated for customers along each block of
the existing Residential 1A rate and showed price elasticity is largest in the first block.
The elasticity study, however, could not identify the optimal size of the first block due to
the trade-offs made in rate design for economic efficiency, equity, affordability and
stability which could not be captured in the study. PNM witness Lesser discusses the
elasticity study and its findings in more detail. PNM’s rate design for the residential class
considered the results of the elasticity study.
WHAT FACTORS DID PNM CONSIDER IN THE ALLOCATION OF OVERALL
REVENUE DEFICIENCY TO CUSTOMER CLASS?
Once overall costs were determined for each class, the next step was to determine the
appropriate levels of revenues to be collected from each class. A number of cost-based
and other considerations were factored into the overall revenue allocation decision to
ensure each customer class received a fair apportionment of the overall revenue
requirement. These included:
a) Cost Causation - Class Rate of Return ("ROR") on rate base under present rates
depicting current cost recovery for each class relative to the system as a whole and
to each other;
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b) Equalized Rates-of-Return - Class ROR set equal to the system average for all
classes; revenue allocation based upon the under / over collection of revenues
necessary to earn an equalized return;
e) Gradualism - Revenue allocation is predicated upon equalized ROR but moderated
to ensure no class receives an increase (or a decrease) significantly below or greater
than the system av(rage; typically a "band" around the system average increase is
established and applied to all customer classes to moderate large increases (or
decreases);
d) Price and Tariff Relationships - Customer class unit price results from revenue
allocation compared with existing unit pricing, similar pricing of other classes, and
other rate design requirements; revenue allocation adjusted as needed to ensure
proportionality and other desired pricing designs are met; and
e) Other Non-Cost Ratemaking Factors - Other factors for considerations including:
conservation, social and environmental goals, affordability, market pricing, fairness,
and equity.
HOW WERE THESE FACTORS UTILIZED?
PNM followed the five considerations closely in the allocation of revenue requirements
for Phase I and Phase II. The initial step was a review of the results of the Company’s
embedded cost-of-service study contained in 530 Schedule K-4 to assess relative cost
causation and cost recovery. Class ROR under present rates, coupled with the class
relative ROR, were initial factors in revenue allocation. Classes with relative ROR close
to system average were assumed to receive an increase close to system average; classes
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with relative ROR above or below this range were flagged as requiring additional
analysis.
The next step was the development of equalized class ROR’s under the Test Period
revenue requirement. The proposed revenue increase for each class was developed in
such a way that the relative ROR for all classes under the proposed revenue requirement
equaled 1.00. The resulting percent increases for each class were compared to the system
average increase to determine the relative increase ratio.
Parallel with the development of the equalized class ROR revenue requirements was the
establishment of a 0.5-1.25 system average increase "band," or guideline, under which no
class was to receive an increase below 50% of system average and no class was to receive
an increase greater than 125% of system average. The 0.5-1.25 band was primarily
established as a means of moving all customer classes toward equalized ROR but doing
so gradually to moderate any significant increases or decreases based solely on an
equalized cost-of-service basis. Using this band, the overall revenue requirements of
seven of the eleven PNM North customer classes were slightly modified so that they
would meet the 0.5-1.25 guideline. Similarly the revenue requirements of six of the
eight PNM South customer classes were slightly modified to bring them in line with the
guideline. Any residual revenue requirements after application of the band were
reallocated to other retail classes with relative increases below system average. PNM
took this conservative approach given that it is presenting both an embedded class cost of
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service study for revenue allocation and a Test Period based on a future forecast for the
first time.
Once this preliminary revenue requirement allocation was complete, the final step was a
review of the resulting unit pricing after application of the increased revenues. Inter- and
intra-class pricing and tariff proportionality relationships were reviewed along with other
non-cost factors such as affordability, rate stability, etc. For example, the overall revenue
increase requirements for the PNM North Residential Service class were adjusted slightly
downward to maintain the current proportionality between residential pricing in PNM
North and PNM South. The resulting residual revenue requirements were again
reallocated to other retail classes with relative increases below system average.
PLEASE PROVIDE THE SUMMARY OF REVENUE INCREASES REQUESTED
AND ROR BY CLASS.
PNM Exhibit JAM-12 provides a summary of ROR for the classes from the embedded
class cost of service study as well as the requested revenue increase by rate class for
PNM North and PNM South.
WHAT SIGNIFICANT CHANGES ARE PROPOSED FOR PNM NORTH
TARIFFS?
For PNM North customers, PNM is proposing to expand the definition of the summer
season from June through August to May through September, an expansion of two
months; reduce the daily on-peak hours from twelve to ten (Monday through Friday);
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shift on peak hours by season; revise the Residential rate structure to include a higher
customer charge and add a fourth block to reflect the higher use on the system; and
expand the miscellaneous services tariff to move towards a common tariff structure with
PNM South. PNM also proposes to exclude Inspection and Supervision ("I&S") fees
from base rates and collect the fee as a separate line item on bills pursuant to PNM’s Tax
Adjustment Clause.
PNM is also proposing to implement a revenue decoupling pilot program applicable to
customers within the PNM North Residential Service (Schedules 1A and 1B) and Small
Power Service (Schedules 2A and 2B) customer classes. If the proposed decoupling
mechanism is approved, customer charges for PNM North residential and small power
customers will remain at current levels. For residential customers, Schedule 1A, the
customer service charge would remain at $4.00 instead of increasing to $7.00. For
Schedule 2A Small Power customer charges will remain at $7.75 instead of the proposed
$12.00.
WHAT SIGNIFICANT CHANGES ARE PROPOSED FOR PNM SOUTH
TARIFFS?
For PNM South customers, PNM is proposing to make TOU pricing available and add
seasonality to the rates to start standardizing tariff terms between PNM North and PNM
South and provide for the eventual consolidation of PNM North and South rates. The
standardization of tariff terms includes establishing a common definition of the summer
season to be the months May through September; create common daily on-peak periods
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of ten hours (a reduction from the twelve hour definitions used in PNM North); splitting
up the non-summer season on-peak hours into two groups; and providing for a common
tariff structure for miscellaneous service charges. PNM also proposes to exclude I&S fees
from base rates and collect the fee through a separate line item on bills pursuant to its Tax
Adjustment Clause.
WHY IS PNM NOT PROPOSING IDENTICAL TARIFF STRUCTURES FOR
PNM NORTH AND SOUTH AT THIS TIME?
As I have previously testified, the resulting rates that would occur to PNM South
customers by moving to a PNM North rate structure without consolidating the cost of
service would result in some PNM South customers suffering unnecessarily large rate
increases. For example, implementation of the four tier residential inclining block
structure for PNM South on a standalone basis could result in some customers receiving a
55% increase or more in their individual summer bills or an annual bill increase of 36%
or more. This would not occur under a consolidated basis.
WHY IS PNM PROPOSING TO EXTEND THE SUMMER SEASON?
Extending the summer season definition to include May and September will provide
customers with price signals that more accurately reflect the costs imposed on the
Company’s electric system. Customers can then make more informed decisions as to
when or how much electric service to use each month. Examination of Company load
characteristics over the last several years reveals that afternoon cooling loads set the monthly
maximum peak loads in both areas during the months of May through September. The current
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summer months of June to August do not fully capture this effect of cooling loads. PNM Exhibit
JAM-13 illustrates this trend. In PNM North, these cooling loads are driven primarily by the
Residential, Small Power, and General Power rate classes.
WHAT IS THE COMPANY’S PROPOSAL WITH RESPECT TO TOU
PERIODS?
The Company is proposing to change its TOU on-peak billing in the summer months for
PNM North to between 12 pm and 10 pm on weekdays, and in the non-summer months
to between 7 am and 12 pm and between 5 pm and 10 pm on weekdays. Off-peak hours
would consist of all remaining hours. For its PNM South customers, the Company
proposes to offer the same TOU billing periods and seasons as PNM North.
WHY IS THE COMPANY MAKING THIS CHANGE TO TOU BILLING
PERIODS IN THIS CASE?
In the examination of overall system load shapes by season, it was apparent that the
existing seasonal on-peak hours did not fully encompass the hours where peak loads were
most likely to occur. During the summer months, peak periods are later in the day, while
during non-summer months the peak period is divided into separate and distinct morning
and evening times. PNM Exhibit JAM-14 illustrates these peak periods.
PNM North has offered TOU rates to its customers since 19812, and has utilized an 8 am
to 8 pm on-peak billing period during weekdays since mid 1984.3 PNM has seen a
result of the final order in NMPUC Case 1693.
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change that supports a re-definition of its TOU billing periods for the last several years,
but has not proposed changing those periods in other rate cases primarily due to the time
and costs required to physically reprogram the existing TOU meters. It recently became
possible for meter readers to use new technology to reprogram TOU meters more quickly
and cheaply, thus making TOU time period changes economically practical.
WHAT ARE THE IMPACTS OF THE PROPOSED CHANGES TO TOU
BILLING PERIODS?
The most noticeable impact is the reduction of on-peak hours from 60 to 50 hours per
week, while off-peak hours will be increased from 108 to 118 hours per week. The
concentration of the recovery of peak period costs over fewer hours sends a stronger price
signal to customers. This in turn has the potential to improve the Company’s total load
shape.
Additionally, the shorter on-peak period has the potential to improve the economic
viability of some energy/demand management technologies (such as thermal energy
storage), thus improving their likelihood of adoption by customers.
Q, WHAT TYPES OF CUSTOMERS ARE LIKELY TO BENEFIT FROM THE
PROPOSED TOU BILLING PERIOD CHANGES?
A. Short term, the customers most likely to benefit from the proposed TOU billing period
changes are those whose load profiles are not highly correlated with the newly proposed
3 A~ a result of the final order in NMPUC Case 1835.
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peak periods. This is appropriate since these customers’ peak loads do not contribute to
the system peak. Longer term, customers who can shift usage/demand to off-peak periods
will benefit.
WHAT HAS THE COMPANY DONE TO MITIGATE POTENTIAL IMPACTS
OF THE PROPOSED TOU BILLING PERIOD CHANGES?
For PNM Schedules 1, 2 and 10 (the three rate classes where TOU rates are an option),
the Company endeavored to maintain the relative economics between the TOU and the
non-TOU options for these tariffs. For the remaining PNM North tariffs where TOU is
the only option (Schedules 3, 4, 5, 11, 15, and 30), the Company examined the relative
bill impacts of each tariff with respect to other tariffs that a customer might choose.
PLEASE SUMMARIZE THE PROPOSED CHANGE IN THE RESIDENTIAL
RATE STRUCTURE.
PNM is proposing a number of changes to the residential rate slructure for both PNM North and
PNM South. Residential customer-related fixed costs are currently only partially collected
through the monthly customer charge. Although the monthly customer charge is intended
to recover customer-related fixed costs, i.e. costs that do not vary with usage except over
long periods of time, PNM’s residential rate structure is currently structured so that the
great majority of PNM’s fixed costs are actually recovered in the variable rates. PNM is
proposing to change the customer charge to $7.00 per month for PNM North (unless a
decoupling proposal is adopted) and PNM South. The objective of this change is to have
the customer charge cover a reasonable amount of customer-related fixed costs, while
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protecting low-use customers from experiencing an inordinately large bill impact. The
fully allocated embedded cost of service study indicated the customer charge should be
$13.00 for PNM North residential customers and about $8.00 for PNM South customers.
While the proposed increase in the customer charge improves the recovery of customer-
related costs, it does not address the residential class demand-related fixed costs which,
when combined with customer-related fixed costs, are over $55.00 per residential
customer.
PNM North is also increasing the number of blocks in the PNM North residential tariff from
three to four to provide a better match to residential usage. The first block, 0-200 kWh, is
a low usage block. The second block, 201-700 kWh, is for typical usage and includes the
average monthly usage of PNM residential customers. The third block, 701-1,700 kWh,
reflects higher usage levels and the fourth block reflects extremely high usage customers.
The fourth block, 1,701 kWh and more, is priced at the cost of long term energy.
Finally, the Company is introducing seasonality in the energy rates for PNM South to
better reflect the costs associated with providing service. Adding seasonality also moves
the rate structure towards the PNM North residential rate structure in anticipation of the
future combination of the rate structures, As I discuss in my testimony, PNM is proposing
to substantially keep the South rate structures in place with minor modifications for this
filing.
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WHY IS PNM MAINTAINING THE 0-200 KWH BLOCK IN THE
RESIDENTIAL TARIFF?
PNM proposes to maintain the 0-200 kWh block for PNM North residential customers
for a number of reasons. The 0-200 kWh block better matches the cost to serve than a
block that combines the first two blocks. Maintaining the 0-200 kWh block reduces the
amount of fixed costs that are unrecovered from low usage customers as compared to
enlarging the first block’s usage. Similarly, PNM’s ability to recover its costs for cut-in
and cut-out customers is more easily addressed with the 0-200 kWh block structure than a
larger block. Retirees, tourists, and other energy users with usage patterns that are higher
in some seasons than others can receive appropriate price signals for the costs they
impose on the system with the existence of the 0-200 kWh block. The Afion Stipulation,
combined with expansion of the first block, would require concentration of all future
revenue increases across fewer kWh in the remaining blocks.
PNM is also continuing the 0-200 kWh block in the inclining block design as it provides
some reduction in rate impact to low usage customers and lower income customers who
have higher price elasticity as discussed by PNM witness Lesser. Price elasticity is only
one element of many to be considered in setting block size in rate design. Finally,
keeping the first block sized at 200 kWh avoids an increase of 1.69 cents per kWh for the
first 200 kWh of usage.
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WHAT IS THE PURPOSE OF ADDING A FOURTH TIER FOR THE
RESIDENTIAL CLASS?
The four tiers better match PNM’s customer consumption patterns with the marginal cost
of serving customers. A fourth block at a higher rate, i.e. one that reflects the long term
costs of more expensive energy, sends a stronger price signal to customers to conserve.
The price of the fourth block in an inclining block structure also reflects tile higher costs
imposed by customers with higher usage. Customers at the proposed 1,701 kWh fourth
block level are likely users of refrigerated air conditioning, increased appliance use or
electric heating which is a significant driver of peak loads. An incidental benefit is that
the fourth block lowers prices in the first three blocks where about 98% of customer
usage occurs. A bill analysis showed the addition of the fourth tier lowered the energy
rate to the first three blocks approximately 0.043 cents per kWh and lowered average
bills about $0.23 per month compared to maintaining a three block rate structure. Low
income customers will be better served by the proposed rate structure - low income
customers generally have lower average annual bills than higher income customers.
PNM’s proposed four block rate structure and proposed pricing will result in generally
lower bills for low income customers in a manner that better reflects cost causation rather
than social ratemaking.
PLEASE DISCUSS THE CHANGES TO SCHEDULE 4B-LARGE POWER
SERVICE TOU RATE.
A contract is only required now when a line extension is revenue justified. Other changes
to Schedule 4B are for clarification of administration.
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PLEASE DISCUSS THE CHANGES TO LIGHTING SCHEDULES.
PNM retained an outside consulting firm, Management Applications Consulting, Inc.
("MAC") to prepare an analysis of its street lighting rates (schedule 6 and schedule 20 for
PNM North, schedule 4 and schedule 14 for PNM South) based on an accounting cost of
service approach using 2009 investment. The findings indicate that the current pricing
for PNM North Schedule 06 - Private Area Lighting and PNM South Rate 4 - Outdoor
Lighting Services are somewhat above actual accounting costs when the age/vintage of
the fixtures, bulbs, and poles is considered. This finding was confirmed in the class-
cost-of-service study in this case. In keeping with PNM’s revenue allocation approach,
the overall increase for this class was established to bring prices in line with existing
costs but was capped at 1.25 x system average increase to mitigate the overall customer
impa~t.
PLEASE SUMMARIZE KEY POINTS ABOUT DEMAND CHARGES AND
CUSTOMER CHAR(JES.
PNM has proposed appropriate increases in demand charges and customer charges that
improve the recovery of fixed costs based on the fully allocated embedded cost of service
study for each rate class. While the proposed increases better match demand charges and
customer charges and costs, they do not achieve full recovery for the allocated fixed costs
as shown in the embedded study. Consequently, some fixed costs will continue to be
collected in energy charges. The decoupling proposal is intended to address this issue for
residential and small power customers. These two rate classes account for nearly 60% of
PNM North’s revenue requirement.
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WHAT IS PNM DOING TO STRUCTURE A COMMON MISCELLANEOUS
SERVICES TARIFF?
PNM is proposing to standardize most of the charges contained within the current PNM
North Rate 16 and the PNM South Rate 20 tariffs. To implement this, PNM made two
administrative adjustments to the Test Period determinants to support the implementation
of a common miscellaneous services tariff.
The first adjustment was to estimate the Late Payment Charges to reflect the revenues to
be collected under the newly proposed Late Payment Fee rate for PNM South. This
adjusts the total company late payment charge credits by $46,557 (Please see 530
Schedule 0-4).
The second adjustment was to estimate the Meter Tampering Charges which would be
collected under PNM’s newly proposed Meter Tampering Fee rate for PNM North. This
adjusts the total company miscellaneous charge by $46,000.
WHY ARE THE REVENUES ASSOCIATED WITH THE OTHER SPECIAL
CHARGES BEING REDUCED IN THIS CASE?
An analysis of the transaction costs supports a reduction of the Connection and Field
Collection charges in PNM North Rate 16 and a reduction in the Connection and
Reconnection Charges in PNM South Rate 20. (Please see 530 Schedule 0-4).
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IS THE COMPANY PROPOSING TO ADD ANY CHARGES TO PNM’S RATE
16 - MISCELLANEOUS SERVICE CHARGES?
Yes, the Company proposes to institute a Meter Tampering Fee for PNM North to mirror
the fee that is utilized in PNM South. Additionally, the Company is proposing to add
language to the tariff explaining the current Late Payment Charge (this is currently in
each of PNM North’s base tariffs).
IS THE COMPANY PROPOSING TO ADD ANY CHARGES TO PNM SOUTH
RATE 20 - SPECIAL CHARGES TARIFF?
Yes, the Company proposes to institute a Late Payment Charge of 0.667% per month for
PNM South to mirror the fee that is utilized in PNM North.
IS THE COMPANY PROPOSING TO REMOVE ANY CHARGES TO THE PNM
SOUTH RATE 20 - MISCELLANEOUS SERVICE CHARGES TARIFF?
Yes, PNM proposes to remove the following charges from Rate 20 - Miscellaneous
Service Charges Tariff:
1. Meter Socket Purchase Charge: There have been no instances where customers
have utilized this charge.
2. Internet Access to Interval usage data: This service is now obsolete with the
advent of the PNM Profiler product, which provides customers with access to
interval usage data via the internet, and is provided free of charge to customers
who have interval data recording meters.
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Broken!tampered meter seal: Although there are instances where meter readers
find broken!damaged meter seals, in no instance in 2009 was this fee assessed.
Until a standardized policy for assessing this fee is developed, the Company
proposes to remove this charge.
Deny Access to Meter Reading: Although there are instances where meter readers
cannot access meters for reading/billing, in no instance in 2009 was this fee
assessed. Until a standardized policy for assessing this fee is developed, the
Company proposes to remove this charge.
PLEASE PROVIDE THE PROOF OF REVENUES FOR PNM NORTH AND PNM
SOUTH.
530 Schedule 0-2 shows the revenues by rate class for the Test Period under proposed
rates and under current rates. This Exhibit applies the projected Test Period billing units
to determine the total revenue for each rate class for Phase I and II. This calculation
demonstrates how the revenue requirement for each rate class for both PNM North and
PNM South will be collected.
V. DECOUPLING FIXED COSTS
PLEASE DESCRIBE THE RATE DESIGN AND RATEMAKING METHODS
THAT PNM PROPOSES TO COMPLY WITH NMAC 17.7.2.9K(7)(a).
The Commission’s rule adopting the disincentive/incentive mechanism requires that the
New Mexico utilities file in either a general rate case or by July 1, 2010, rate design and
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rate making methods to remove regulatory disincentives or barriers for that utility to
achieve energy efficiency savings. It is generally accepted that, for long term incentives
for energy efficiency measures to be effective, the utility must be made to a large extent
indifferent to changes in customer average use. To do this the rate design must allow it to
recover its non-variable or fixed costs. This means that: a) the customer charge for
residential and small power customers should be reflective of the fixed costs incurred by
each customer and demand charges for larger commercial and industrial customers
should be reflective of the allocated fixed charges; or b) fixed charge cost recovery
should otherwise be "decoupled" from energy sales.
PLEASE DESCRIBE HOW PNM HAS ADDRESSED EACH OF THESE
METHODS IN THIS FILING. :
In this filing, with the use of the embedded cost study, decoupling and other fixed charge
changes, PNM has begun to move towards the long-term solution. PNM is proposing to
change the customer charge for its rate classes to better reflect the allocated costs for
customer costs determined for the cost study as well as moving to a "straight fixed-
variable" approach for its larger customers through the use of higher demand and
customer charges. Also, as I will address below, PNM is proposing a revenue decoupling
pilot program for the Residential and Small Power Service classes in PNM North. Given
the rate disparity between the PNM North and PNM South classes and the volatility of
fuel costs for PNM South, which comprise a more significant portion of its cost of
service, PNM is not proposing revenue decoupling for PNM South at this time.
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HAVE YOU PRESENTED A RATE SCHEDULE FOR RESIDENTIAL
CUSTOMERS THAT ADJUSTS FIXED CHARGES FOR CUSTOMERS OTHER
THAN LOW-USE CUSTOMERS?
Yes. Pursuant to NMAC ¶17.7.2.gK(7)(a), provided in PNM Exhibit JAM-15, for
informational purposes only, is a rate schedule showing the effects of customer charges
remaining at $4.00 and $4.02 for only residential low-use customers for PNM North and
South, respectively. This illustrative schedule does not reflect the proposed fourth tier
pricing block for PNM North.
PLEASE DESCRIBE THE REVENUE DECOUPLING PILOT PROGRAM
PROPOSAL.
As discussed by PNM witnesses Darnell and Cavanagh, PNM is proposing to implement
a revenue decoupling pilot program applicable to customers within the Residential
Service (Schedules 1A and 1B) and Small Power Service (Schedules 2A and 2B)
customer classesfor PNM North. The revenue decoupling program consists of the
establishment of a Fixed Cost Recovery ("FCR") tariff that allows PNM to separate or
"decouple" collection of its fixed costs from its volumetric energy sales and provides
symmetry through a surcharge or credit when fixed cost recovery per customer varies
above or below a Commission-established base. In other words, the FCR will reconcile
the authorized fixed costs that PNM should be collecting from the small power and
residential customers and the fixed costs per kWh that it is actually collecting from sales
to those customers.
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The primary purpose of the FCR is the establishment of a tariff to track or "decouple" the
energy sales from fixed cost collection in order to remove the disincentive that exists as
customers reduce their energy usage. The FCR is designed to address the requirements of
the energy efficiency rule for a ratemaking methodology to remove regulatory barriers
necessary to achieve energy efficiency savings. In PNM’s decoupling proposal, the fixed
cost portion of PNM’s overall revenue requirement will be established in this case for the
two customer classes. Thereafter, the FCR will provide for the collection of the approved
fixed costs per individual customer regardless of the amount of actual sales to residential
and small power customers. Under this approach, the Company becomes largely
indifferent to changes in average customer use for residential and small power customers.
PNM’s proposal is similar to that which has been used for several years by Idaho Power.
WHY ARE YOU LIMITING THE FCR REVENUE DECOUPLING PILOT
PROGRAM TO CUSTOMERS IN THE RESIDENTIAL SERVICE AND SMALL
POWER SERVICE CLASSES?
PNM wants to take a gradual approach to the introduction of the FCR tariff in order to
gain experience and avoid unintended consequences. Residential Service and Small
Power Service customer classes represent the highest fixed cost exposure (on a
percentage basis) given the nature of their current rate designs. Average energy use
within these classes has a high correlation to the number of customers within these two
rate classes. Therefore the FCR tariff is initially better suited for application to rate
classes with large numbers of customers and low average use as compared to other high
use customer classes with smaller numbers of customers.
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PLEASE DESCRIBE THE FIXED COST RECOVERY TARIFF.
The FCR works identically for both the residential and small power customer classes.
The formula to determine the monthly FCR amount is:
FCR
Where:
FCR =
CUST =
FCC =
SALES =
FCE =
= (CUST X FCC) - (SALES X FCE)
Fixed Cost Recovery on an annual basis
Number of residential or small power customers at the end of each month
Test Period Fixed Individual Cost per Customer (S/Customer) for
residential or small power customers
Actual monthly energy sales to residential or small power
customers (kWh) ’
Test Period Fixed Cost per Energy (S/kWh) for residential
or small power customers
The first term in the equation (CUST x FCC) represents the fixed costs approved for
recovery. The second term (SALES x FCE) represents the fixed costs actually collected.
For each class, the actual number of customers in the Test Period (CUST) is multiplied
by the fixed cost per customer factor (FCC) calculated as a part of this case. This product
represents the "allowed fixed cost per customer recovery" amount. At the same time the
FCC is developed, a corresponding factor is developed on a per kWh basis (FCE). This
number, when multiplied by actual energy sales (SALES) during the following year
provides the "actual fixed costs recovered per kwh sales" amount. The FCR annual reset
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is the difference between the Company’s "allowed fixed cost recovery" and the "actual fixed
cost recovered".
PNM proposes that the FCR be in effect for approximately three years following the effective
date of new rates set in this case.
PLEASE DESCRIBE THE DEVELOPMENT OF THE FCC AND FCE FACTORS
FOR PHASE I AND PHASE II.
The development of the base level FCC and FCE factors for Phase ! and Phase II for the
Residential Service and Small Power Service has been provided on PNM Exhibit JAM-
16. As shown on this Exhibit, the development of the FCC and FCE factors for each
phase-in period consists of three steps. The first step is identification of the total fixed
costs for each customer class. Fixed costs for the residential and small power customer
classes consist of all production, transmission, and distribution demand allocated costs
and customer allocated costs. The identification of these costs and the associated revenue
requirements are calculated within the Company’s filed cost-of-service study (530
Schedule K-4 Embedded) and reproduced on PNM Exhibit JAM-16.
Once the total fixed cost revenue requirements are determined, the next step is to subtract
the portion of fixed costs that will be recovered through the customer charges embedded
in the rate tariffs for both classes (currently $4.00 for Residential Service and $7.75 for
Small Power Service). The remainder represents the total amount of fixed costs to be
recovered through volumetric energy charges, and represents the authorized fixed
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recovery amount. The authorized fixed cost recovery amount is shown on lines 15 (Phase
I) and 30 (Phase II) of PNM Exhibit JAM-16. The Phase I authorized fixed recovery
amounts are $253,854,383 for Residential customer classes and $73,699,476 for Small
Power customer classes. Dividing these amounts by the Test Period’s annualized monthly
customers produces Phase I FCC factors of $51.22/customer tbr the Residential customer
classes and $138.50/customer for the Small Power customer classes, as shown on Line
16, PNM Exhibit JAM-16. Similarly, taking the authorized fixed recovery amounts and
dividing them by each customer class’s respective Test Period energy sales produces
Phase I FCE factors of $0.0880790/kWh for the Residential customer classes and
$0.0857376/kWh for the Small Power customer classes, as shown on line 17, PNM
Exhibit JAM-16. The development of the Phase II FCE and FCC factors are shown on
lines 18-32 of PNM Exhibit JAM- 16.
PLEASE DESCRIBE THE PROCESS FOR IMPLEMENTATION OF THE FCR
TARIFF.
Once the base level FCC and FCE factors for each customer class are determined, a
monthly deferral balancing account would be established to accumulate the over/under
fixed cost recoveries to be used for resetting the FCR on an annual basis. At the end of
each month the number of residential and small power customers is multiplied by the
respective FCC factor. This product represents the "allowed fixed cost recovery"
amount. To determine the "actual fixed cost recovered" amount, PNM will take the
actual monthly energy sales for customers in each of the two classes for the month and
multiply that by the respective FCE factor. The difference between these two numbers
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(allowed fixed cost recovery amount minus the actual fixed costs recovered amount) for
each of the two classes represents the FCR that will be booked to the deferral balancing
account. Annually the FCR will be reset in a Commission proceeding, as described
below. PNM Exhibit JAM-17 provides a time line for the proposed decoupling pilot. The
FCR factor will be set to recover or refund the accumulated balancing account on an
annual basis. The annual amount to be refunded or collected would be limited to no more
than 3% of the FCE revenue with any deferred amount carried over to the next year. The
FCR is the collection of fixed costs per customer to allow recovery of the difference
between the fixed costs actually recovered through rates and the fixed costs per customer
authorized for recovery in this case. The total amount of fixed cost dollars recovered will
change with the addition of customers on the system.
CAN THE FCR RESET AMOUNT BE EITHER POSITIVE OR NEGATIVE?
Yes. The FCR can be either positive or negative. In years where customer growth is
greater than energy growth, an under-collection of authorized fixed costs will occur
triggering a positive FCR to collect the "lost" fixed costs from the residential and small
power customers in the following year. Conversely when energy growth is greater than
customer growth, an over-collection of fixed costs will be returned to the customers
through a rate reduction caused by a negative FCR.
WHEN IS PNM EXPECTED TO FILE THE ANNUAL FCR?
PNM will annually file with the Commission the FCR for the prior twelve months of
actual fixed cost recovery. The first filing would be for nine months. For example, with
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rates effective April 1,2011, PNM would file for the period from April 1,2011 through
December 31, 2011, by May 1, 2012, and request the FCR be implemented by July 1,
2012. The next two years of the decoupling pilot would be filed by May 1 using twelve
months of data and request implementation for the following twelve months beginning
July 1. PNM will also make a filing no later than May 1, 2014, with its recommendation
as to whether the FCR pilot should be continued, terminated or revised.
WILL A HEARING BE NECESSARY TO APPROVE THE FCR ANNUAL
FILING?
The Commission could schedule a heating to investig.ate if the calculations have been
performed correctly, but any hearings should be conducted so as to allow the factor to be
implemented by July 1. Because the Commission will have already established the
formula and the fixed costs per customer and per kWh costs to be recovered, only a
review of the calculation is necessary. The Commission could direct Staff and parties to
identify any disagreements with PNM’s application of the approved formula within ten
days of PNM’s filing so that the Commission can determine if a heating is necessary. If
no challenges are filed within the ten day period, the Commission can approve the factor
for implementation by July 1. If a hearing is determined to be necessary, the Commission
can then schedule it in time for the appropriate FCR factor to be implemented by July 1.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
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HAVE YOU PREPARED AN EXAMPLE SHOWING THE EFFECT OF THE
FCR FOR THE PERIOD OF 2005 TO 2009?
Yes. I have prepared an example using the fixed cost calculation from the last two rate
cases to show what the FCR would have been if it had been in effect for the 2005-2009
time period using the fixed costs from the last two rate cases. As shown in PNM Exhibit
JAM-18, if an FCR tariff had been in place, the armual FCR calculated for the combined
residential and small power customers would have resulted in rate reductions to
customers due to over-collection of fixed costs from energy charges for the 2005-2008
period and a surcharge to customers due to under-collection of fixed costs from energy
charges for 2009. On an individual basis each customer class has years in which the
balance is positive (over-collection resulting in a refund) and negative (under-collection
resulting in an adder).
HOW DO YOU PROPOSE TO IMPLEMENT THE POSITIVE OR NEGATIVE
FCR?
The positive or negative balance for the FCR will be allocated to the Residential and
Small Power classes using forecasted sales for the twelve months of the FCR
implementation. I previously described PNM’s inclining block residential tariff design
and the addition of a fourth pricing tier. As an added energy efficiency incentive, we
propose that any negative FCR balance allocated to the Residential Class (indicating the
need for an FCR collection) be applied directly to the two higher usage blocks of the
Residential Service tariff to make up for the fixed cost under-recovery. Conversely, we
propose that any positive FCR balance (indicating the need for an FCR refund) be applied
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directly to the two lower usage blocks to refund a fixed cost over-recovery. This
approach significantly mitigates the impacts on low-use customers and those customers
who have implemented energy efficiency measures. It would also provide a greater
incentive to higher usage customers to participate in energy efficiency programs. Any
over or under recovery allocated to the Small Power customers will be applied on a
uniform per kwh basis using forecasted kWh.
We are also proposing that net revenues from the proposed new interconnected customer
rider be credited to the deferral balancing account. I describe this tariff and approach in
more detail in the next section of my testimony.
SHOULD THE COMMISSION CONSIDER A DECOUPLING TARIFF THAT
WOULD ALLOW THE COMPANY TO RECOVER WEATHER-ADJUSTED
FIXED COSTS THAT ARE LOST AS A RESULT OF ITS ENERGY
EFFICIENCY PROGRAMS?
No. PNM’s proposal does not include a weather adjustment to its actual sales, primarily
because weather effects balance out over the long run. This alleviates the need for annual
adjustments to sales that may be contentious. It also stabilizes customer bills by reducing
the ability to over or under recover due to weather variations.
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NMPRC UTILITY CASE NO. 10-00086-UT
WHAT DISINCENTIVES TO CUSTOMER CONSERVATION MAY BE
CAUSED BY VIRTUE OF ADOPTING YOUR PROPOSED FCR?
Every unit of energy the customer avoids consuming will result in a savings to their
individual energy costs. Even if the opportunity for fixed cost recovery is improved
through a decoupling tariff (resulting in a possible FCR adder), the customer conserving
energy will siill see a net savings for every kWh they avoid. For example, the average
Phase I price/kWh for residential is $0.1227; the Phase I FCE price/kWh is $0.08808.
Even if fixed cost recovery is 100% under-recovered, the customer will still see a
minimum savings of $0.0346 per kWh for every kWh they don’t use. More than likely
they will see savings much closer to the full retail price. Any customer interested in
energy efficiency will still realize a savings and should therefore continue to be
encouraged to conserve.
The proposed FCR will further encourage energy efficiency in that additional recovery of
costs resulting from decoupling-related adjustments will be allocated to the higher usage,
higher priced tiers, and any credits will be allocated to the lower usage, lower priced tiers.
This approach encourages residential customers to reduce usage.
WHAT RATE DESIGN CHANGES WOULD BE APPROPRIATE IF THE
COMMISSION DOES NOT ADOPT THE FCR AS PROPOSED?
As I mentioned previously in my testimony, the Company is proposing to maintain the
current customer charges for Residential Service and Small Power Service of
$4.00/month and $7.75/month if its decoupling proposal is approved. PNM’s actual
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customer fixed costs for residential customers are approximately $13.00/month and
similar costs for small power service customers are nearing $28.00/month. If the
decoupling proposal is not approved, PNM would recommend that the Residential
Service customer charge be increased to $7.00/month and the Small Power Service
customer charge be increased to $12.00/month.
VI. NEW INTERCONNECTED CUSTOMERS
IS THE COMPANY PROPOSING TARIFFS TO RECOVER THE COSTS OF
ANCILLARY AND STANDBY SERVICES TO NEW INTERCONNECTED
CUSTOMERS AS PROVIDED FOR IN HB 181?
Yes. The Company is proposing Rider 34 in PNM North and Rider 4 in PNM South to
recover the cost of service to new interconnected customers.
WHAT DO YOU MEAN BY "NEW INTERCONNECTED CUSTOMER"?
PNM’s proposed tariffs define "new interconnected customer" consistently with the
definition contained in Section 2 of HB 181. Thus a "new interconnected customer" is a
utility customer who became interconnected with non-utility distributed generation
facilities after December 31, 2010, or whose REC purchase agreement entered into prior
to January 1,2011, is no longer effective after December 31, 2010.
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HOW HAS THE COMPANY DETERMINED THE COSTS TO BE COLLECTED
UNDER THESE RIDERS?
PNM is obligated to serve all customers on its system and as such must design its systems
to meet that obligation. Therefore, the class allocated fixed costs associated with the
service to these customers is no different from all other customers within the same rate
class. PNM has a significant portion of its fixed costs recovered through its variable
energy rate.
HOW DID PNM DETERMINE THE FIXED COSTS IN THE VARIABLE
ENERGY RATE?
Using the embedded class cost of service study, PNM calculated the total demand and
customer related charges, subtracted the revenue forecasted to be recovered through the
customer charges and divided the remaining costs by the forecasted energy. PNM
Exhibit JAM-19 shows the development of the fixed costs contained in the variable
energy rate. In order to reduce the number of different rates applicable to new
interconnected customers, customer classes were combined as appropriate to reflect
similar fixed costs per kWh.
WHAT DO THESE COSTS REPRESENT?
The fixed costs to be recovered by this Rider reflect the reasonably determinable
embedded and incremental costs of PNM to serve these customers and have them
interconnected to PNM system. As such they are costs associated with services that are
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essential to maintain electric system reliability and are required by, or are a consequence
of, interconnecting distributed generation facilities to PNM’s system.
ARE
REGULATION AND
VOLTAGE SUPPORT,
RESERVES?
THERE ADDITIONAL COSTS AT THIS TIME ASSOCIATED WITH
FREQUENCY RESPONSE, REGULATION AND
SPINNING RESERVES AND SUPPLEMENTAL
No. The costs for these services are included in the embedded cost study used to
calculate the fixed cost recovery associated with this Rider and so they represent the
reasonably determinable embedded and incremental costs to serve new interconnected
customers during the three-year period after the Rider is proposed to take effect.
ARE THE COSTS TO BE RECOVERED THROUGH THIS RIDER
DUPLICATIVE OF COSTS TO BE RECOVERED IN UNDERLYING RATES?
No. Although the costs identified for recovery in this Rider are included in the embedded
cost study, they will not be recovered in underlying rates due to the reduced usage
associated with customers interconnected to non-utility distributed generation facilities.
DO THE NON-UTILITY DISTRIBUTED GENERATION FACILITIES THAT
INTERCONNECT TO THE PNM SYSTEM PROVIDE ANY BENEFITS?
Yes, they do. Short-term benefits of distributed generation facilities include lower fuel
and purchased power costs and reduced losses. Long-term benefits include capacity
savings for generation and cost deferral savings for transmission.
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DIRECT TESTIMONY OFJAMES A. MAYHEW
NMPRC UTILITY CASE NO. 10-00086-UT
HAS PNM CALCULATED THE ANTICIPATED BENEFITS IN THE FIRST
THREE YEARS AFTER THIS RIDER GOES INTO EFFECT AS REQUIRED BY
HB 181?
Yes. PNM calculated the projected fuel and purchased power savings using the avoided
energy cost used in the 2009 PNM Energy Efficiency Program Annual Report adjusted
for current gas prices. PNM Exhibit JAM-20 summarizes the avoided cost. The average
overall system fuel and purchased power rates were reduced $.001119/kWh.
OTHER THAN THE AVOIDED FUEL COSTS, ARE THERE ANY OTHER
BENEFITS ATTRIBUTABLE TO THE NEW INTERCONNECTED
CUSTOMERS THAT ARE ACHIEVABLE IN THE THREE YEAR PERIOD
AFTER NEW RATES TAKE EFFECT?
Yes. If the energy from the distributed generation occurs at the time of peak, there is
some potential reduction in the cost of PNM’s demand response programs. As can be
seen on the graph in PNM Exhibit JAM-21, solar energy does not peak at the same time
as PNM’s peak and therefore has less of an impact on demand response programs. While
PNM does not expect distributed generation to fully offset the variable cost of the
demand response programs, PNM Exhibit JAM-20 provides the quantification of the
impact on the variable costs of the program based on the 2009 PNM Energy Efficiency
Program Annual Report. This is the first year PNM has claimed any demand response
from the load management programs. This potential benefit has been included in the
determination of the avoided costs for the reduction of the fixed cost component of the
rate.
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HAS PNM QUANTIFIED OTHER SAVINGS DURING THE THREE YEAR
PERIOD?
No.
DOES THE COMPANY’S DECOUPLING PROPOSAL FOR PNM NORTH
RESIDENTIAL AND SMALL POWER CUSTOMERS ELIMINATE THE NEED
FOR THIS CHARGE TO THESE CUSTOMERS?
No. The charge to new interconnected customers reflects the specific fixed costs that the
Company is not recovering from these customers. Absent this charge, the Company has
only two ways to recover the fixed costs associated with serving these customers and
maintaining system reliability. These two methods are: a) by recovering the lost fixed
costs from other customers through increased customer or energy charges; or b) through
adding the unrecovered fixed costs to the FCR to the detriment of other customers. In
both cases, they represent a subsidy to the new interconnected customers by other
customers on the system. The legislation is specifically aimed at preventing this and
allowing the utility to collect its costs for serving these customers less reasonably
determinable benefits to the system achievable within the three year period during which
the Rider is expected to be effective. The Rider that PNM is proposing does this and
prevents subsidizing new interconnected customers by the other customers on the system.
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NMPRC UTILITY CASE NO. 10-00086-UT
IS THE COMPANY DUPLICATING RECOVERY OF THESE COSTS
THROUGH THE RATE RIDER AS WELL AS THE FCR?
No. PNM is proposing that the net revenues from the Rider be applied to the annual
balance for the FCR. In this manner, the revenues from the Rider will either decrease any
under recovery or increase any over recovery that will be applied to the small power and
residential customers. This approach ensures that no duplication of cost recovery occurs
and provides the system benefit of collecting these fixed charges to all customers in the
small power and residential classes.
VII. MISCELLANEOUS
DOES THE COST OF SERVICE REFLECT THE TERMS OF STIPULATIONS
APPROVED BY THE COMMISSION?
Yes, as I have described in my testimony.
PLEASE IDENTIFY HOW PNM HAS COMPLIED WITH THE 2008 RATE
CASE ORDER AND RULE REQUIREMENTS WITH RESPECT TO COST OF
SERVICE.
PNM conducted workshops on cost allocation and rate design methodologies and is filing
both an embedded class (530 Schedule K-4 Embedded) and marginal class cost of service
(530 Schedule K-4 Marginal) and an elasticity study.
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DOES THIS CONCLUDE YOUR TESTIMONY?
Yes.
96
PNM Exhibit JAM-1Page 1 of 2
Resume of James A. MayhewEducation and Regulatory Work Experience
Education
Master of Science Degree (Administration) from Central Michigan University
MBA Studies (Finance) University of Texas at El Paso
Bachelor of Business Administration Degree (Accounting) from the University ofTexas at El Paso
Industry Groups and Board RepresentationPrior Industry Representative Midwest ISO Advisory Board
Prior Industry Board Member representing the Wholesale Electric Quadrant forthe North American Energy Standards Board (NAESB)
Former Industry Board Member, Stakeholder Committee North American ElectricReliability Council (NERC)
Member EEl, EPSA and APPA Rate Committees
Si.qnificant Work Experience
Present Public Service Company of New MexicoDirector Pricing and Cost of ServiceResponsible for the direction and preparation of jurisdictional revenuerequirements and pricing for the regulatory filings of the Company.
2000 to 2008 Merchant Power Companies (Mirant and NRG Energy)Executive Regulatory Director responsible for regulatory requirements, advocacyand commercial analysis related to wholesale power trading within the organizedpower markets. Represented companies in the advocacy of business ruledevelopment for the wholesale power markets (PJM, CAISO, NYISO, MISO,ISO-New England, and ERCOT) and in rulemaking and tariff changes before theFERC. Responsible for developing regulatory changes to enhance commercialoptimization for existing and new generation assets.
1998 to 2000 Duke Solutions, Duke PowerRegulatory and Billing Director for Energy Service Company of Duke Power.Responsible for regulatory compliance and filings for Energy Service Company invarious retail jurisdictions where company sold natural gas, retail electricity and
PNM Exhibit JAM-1Page 2 of 2
energy services. Developed and created back office billing, invoicing andregulatory reporting functions and department for Energy Service Company.
1995 to 1998 Municipal Electric Authority of GeorgiaSenior Director/Executive responsible for billings, operating budget, energyservices and regulatory requirements for a Municipal Joint Action Agency thatprovided energy sales and services to 50 municipal cities in Georgia.
1980 to 1995 El Paso Electric CompanyVarious positions including Senior Manager/Executive responsible for thedevelopment of the revenue requirements of the company including rate designcost of service, energy efficiency, and regulatory compliance with state andfederal regulatory authorities.
Re.qulatory ExperienceHave provided expert testimony or comments before the following regulatory oradvisory bodies:
Federal Energy Regulatory Commission (FERC)New York State Public Service Commission (NYDPS)California Public Utility Commission (CPUC)Georgia Public Service Commission (GPSC)New Mexico Public Utility Commission (predecessor to New Mexico PublicRegulation Commission)New Mexico Public Regulation Commission
Case No. 08-000273-UTCase No. 08-000024-UTCase No. 09-00008-UTCase No. 10-00078-UTCase No. 10-00106-UTCase No. 10-00127-UT
Public Utility Commission of Texas (PUCT)City of El Paso, Texas Energy Advisory BoardNew York City Energy Policy Task ForceGeorgia Electric Cities Energy Policy GroupCartersville, Georgia City CouncilMarietta, Georgia Energy Advisory BoardWashington, Georgia City CouncilDoerun, Georgia City Council
Public Service Company of New Mexico2010 New Mexico Rate Case No. 10-00086-UTPNM Exhibit JAM-2
PNM Exhibit JAM-2Page 1 of 3
List of 530 Schedules Sponsored by James A. Mayhew
Schedule A Series: Summaries of the Proposed Cost of ServiceA-1 Summary of the Overall Cost of Service and the Claimed Revenue DeficiencyA-2 Summary of the revenue increase or decrease at the proposed rates by rate classes.A-3 Summary of the Cost of Service Adjustments by Functional Classification:A-4 Summaryof Rate Base CaseA-5 Summary of Total Capitalization and the Weighted Average Cost of Capital
Schedule B Series: Original Cost of Plant in ServiceB-1 Original Cost of Plant in Service by Primary AccountB-2 Original Cost of Plant in Service by Detail AccountB-3 Original Cost of Plant in Service by Monthly BalancesB-4 Construction Work in ProgressB-5 Allowance for funds used during construction transferred to plant in serviceB-6 Plant Held for future UseB-7 Nuclear fuel in process
Sche :tule C Series: Accumulated Provision for Depreciation and AmortizationC-1 Accumulated provision for depreciation and amortization by functional classification
and detailed plant accountC-2 Depreciation rate studyC-3 Depreciation and amortization methods
Sche,:~ule D Series: Original cost of plant in service adjusted to the cost of reproductionas a going concern and other elements of value- Optional
D-1 Original cost of plant in service adjusted to the cost of reproduction as a goingconcern and other elements of value- Optional
D-2 Cost of reproduction as a going concern and other elements of value adjustedfor age and condition- Optional
Schedule E Series: Working Capital AllowanceE-2 Materials and supplies, prepayments, and deferred chargesE-3 Fuel inventories by plant locationE-4 Amounts of working capital items charged to operating and maintenance expense
Schedule F Series: Other Property and InvestmentsF-1 Other property and investments
Public Service Company of New Mexico201(~ New Mexico Rate Case No. 10-00086-UTPNI~I Exhibit JAM-2
PNM Exhibit JAM-2Page 2 of 3
List of 530 Schedules Sponsored by James A. Mayhew
Schedule H Series: Expenses of Operation
H-7
H-14H-15H-I~;
Operation and maintenance expensesCost of fuelRevenue generated through the fuel adjustment clausePayroll distribution and associated payroll taxesExpenses associated with advertising, contributions, donations,lobbying and political activities, memberships, and outside servicesOther administrative and general expensesDepreciation and amortization expenseTaxes other than on incomeExpenses associated with affiliated interestsExpenses associated with nonutility servicesExplanation of the adjustments to expenses of operation.
Schedule I Series: Balance Sheet, Income Statement, Statement of Changes in Financial PositionI-1 Balance sheetI-2 Income statementI-3 Statement of changes in financial position
Sche.*lule J Series: Construction Program and Sources of Construction FundsJ-1 Construction program
Sche,Jule K Series: Fully Allocated Cost of Service StudyK-1 Allocation of Rate Base--jurisdictionalK-2 Allocation of Rate Base--functional classificationK-3 Allocation of Rate Base--demand, energy, and customerK-4 Allocation of Rate Base to rate classesK-5 Allocation of total expenses--jurisdictionalK-6 Allocation of total expenses--functional classificationK-7 Allocation of total expenses--demand, energy, and customerK-8 Allocation of total expenses to rate classes
Sche~tule L Series: Allocated Cost of Service per Billing Unit of Demand, Energy and CustomerL-1 Allocated cost per billing unit of demand, energy and customer
Schedule M Series: Allocation Factors
M-1M-2
Allocation factors used to assign items of plant and expenses to the various rate classes
Classification factors used to assign items of plant and expensesto demand, energy, and customer
Public Service Company of New Mexico201~) New Mexico Rate Case No. 10-00086-UTPNI~I Exhibit JAM-2
PNM Exhibit JAM-2Page 3 of 3
List of 530 Schedules Sponsored by James A. Mayhew
M-3 Demand and Energy Loss Factors
Sch~,dule N Series: Rate of Return by Rate ClassificationN-1 Rate of return by rate classification
Schedule 0 Series: Rate DesignO-I Total revenue requirements by rate classification0-:2 Proof of revenue analysis
0-3 Comparison of rates for service under the present and proposed schedules0-4 Explanation of proposed changes to existing rate schedules
Schedule P Series: Key Operating StatisticsPeak Demand InformationPlant in serviceProperty retirements and property investments informationOperation and maintenance expense informationCustomer informationWeather dataPower plant maintenance informationFuel statistics information
Sch~ dule Q Series: Required ReportsQ-" Load research programQ-.~’. Description of companyQ-,’-; Annual Report to stockholdersQ-z. Reports to the Securities and Exchange CommissionQ-[ Form 1 reportsQ-t~ Opinion of independent public accountants
PNM Exhibit JAM-3Page 1 of 15
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Publi,:: Services Company of New Mexico2010 ~lew Mexico Rate Case No. 10-00086-UTPNM :!xhibit JAM-4 PNM North
PNM Exhibit JAM-4Page 1 of 2
Comr,arison Sales and CustomersPNM qorth: Case 08-00273-UT to 2009 Base Year to 2011 Future Test Year
A B CLineNo. Rate Class Case 08-00273-UT Change
D
2009 Base Year
E
Change
FFTY 2011
(Including EnergyEfficiency)
123456789
101112131415161718192O212223242526272829303132
Customers1 - Residential 4,872,780 (71,105) 4,801,675 154,215 4,955,890
2 - Small Power 537,552 (16,389) 521,163 10,956 532,1193B/3C - General Power 46,932 509 47,441 15 47,456
4B - Large Power 2,832 58 2,890 39 2,9295B - Mines 46/115 kV 12 12 24 0 24
10 - Irrigation 3,264 94 3,358 (34) 3,32411B - Wtr/Swg Pumping 1,893 8 1,901 25 1,926
14B - Mines 115 kV 12 0 12 (12) 015B - Universities 115 kV 12 0 12 0 1217B - Manuf. (8 MW) 0 0 0 0 030B - Manuf. (30 MW) 12 0 12 0 12
6 - Private Lighting 0 0 0 0 020 - Streetli£1htin£ 0 1,352 1,352 16 1,368
Total 5,465,301 (85,461) 5,379,840 165,220 5,545,060
kW~h1 - Residential 3,007,671,240 (46,828,108) 2,960,843,132 (78,722,038) 2,882,121,094
2 - Small Power 910,748,432 (61,061,469) 849,686,963 9,906,022 859,592,9853B/3C - General Power 1,864,258,602 (106,977,085) 1,757,281,517 (23 356,735) 1,733,924,7824B - Large Power 1,534,153,331 (110,610,920) 1,423,542,412 (393,148) 1,423,149,2645B - Mines 46/115 kV 55,977,600 32,049,920 88,027,520 (27,520) 88,000,00010 - Irrigation 17,692,825 2,951,295 20,644,120 (3,831,906) 16,812,21311B - Wtr/Swg Pumping 196,259,329 (20,549,876) 175,709,453 40,502,133 216,211,586
14B - Mines 115 kV 38,449,837 (2,413,352) 36,036,485 (36,036,485) 015B - Universities 115 kV 117,072,716 (11,527,860) 105,544,856 12,859,468 118,404,32417B - Manuf. (8 MW) 0 0 0 0 0
30B - Manuf. (30 MW) 516,727,363 (49 815.955) 466,911,408 5,088,592 472,000,0006 - Private Lighting 12,475,224 (304,212) 12,171,012 32,652 12,203,66420 - Streetlightin9 45,798,888 717,152 46, 516,040 183,160 46,699,200Total 8,317,285,387 (374,370,470) 7,942,914,917 (73,795,806) 7,869,119,111
P~,blic Services Company of New Mexico2( 10 New Mexico Rate Case No. 10-00086-UTPHM Exhibit JAM-4 PNM South
PNM Exhibit JAM-4Page 2 of 2
C~mparison Sales and CustomersPHM South: Case 04-00315-UT to 2009 Base Year to 2011 Future Test Year
A B C D E
L ine Case 04-00315- 2009 Baserio. Rate Class
UT ChangeYear Change
F
F’rY 2011(Including Energy
Efficiency)
1 Customers2 Residential - Rate 1 502,080 27,5313 General Service - Rate 2 71,364 1,9054 Large General Service - Rate 3 732 1315 School Service - Rate 5 2,220 1006 Irrigation - Rate 6 288 (24)7 Municipal Power - Rate 12 & 13 1,488 838 4 - Outdoor Lighting Svc 0 09 14 - Street Li~htin~ Svc 732 671l0 Total 578,904 30,397I112 kW.~h
13 Residential - Rate 1 245,504,904 33,437,41514 General Service - Rate 2 150,520,202 (11,200,130)15 Large General Service - Rate 3 61,474,711 16,885,269!6 School Service - Rate 5 25,344,019 1,623,231’ 7 Irrigation - Rate 6 801,849 (435,671)’ 8 Municipal Power- Rate 12 & 13 12,835,110 7,886’ 9 4 - Outdoor Lighting Svc 5,474,306 (614,635)20 14 - Street Li~lhtin~ Svc 4,740,061 38,582:!1 Total 506,695,162 39,741,947:t2
529,61173,269
8632,320264
1,5710
1,403609,301
9,811232
1700101
10,116
539,42273,501
8642,390264
1,5720
1,404619,417
278,942,319139,320,07278,359,98026,967,250
366,17812,842,9964,859,6714,778,643
546,437,108
9,184,4616,426,897(1,708,976)1,545,290
71,774(172,667)96,053182,741
15,625,575
288,126,780145,746,96976,651,00428,512,540
437,95212,670,3294,955,7244,961,384
562,062,683
PNM Exhibit JAM-5Page 1 of 9
Public Services Company of New Mexico2010 New Mexico Rate Case No. 10-00086-UTTest ’(ear Ending 12/31/11PNM Exhibit JAM-5
LineNo. Significant Revenue Impact
Forecasted Revenues at existing rates1 Non-Fuel (w/o I&S Fees1)2 Base Fuel Revenue3 Forecasted Revenues at existing rates4 I&S Fees15 Fuel Factor- Effective July 20106 Miscellaneous Service Charges & Revenues7 Total Forecasted Base Revenues at Existing Rates
8 Fuel Factor- Effective July 2011 (Subject to Change)9 Miscellaneous Revenue Credits10 Total Forecasted Revenues
Deficiency11 ~Jon-Fuel Deficiency- As Requested12 ~ase Fuel Deficiency- As Requested13 vliscellaneous Service Charges14 &S Fees,15 Rate Deficiency- As Requested
APNM North
BPNM South
CTotal
161718
19202122
Revenue Requirement RequestedIqon-Fuel Revenue Requirement (w/o I&S Fees, )I~ase Fuel’otal Revenue Requirement as Requested before FAC and I&S Fees
Fuel Factor - Effective July 2010I&S Fees,I~liscellaneous Service Charges & Revenues’otal Retail Revenue Requirement
23 Fuel Factor- Effective July 2011 (Subject to Change)24 I/liscellaneous Revenue Credits25 Total Revenue Requirements
26
27
! ~ercent Increase (Line 15 divided by Line 7)
$ 535,815,367158,355,132
$ 694,170,4993,512,507
18,126,0881 475 588
717,284,682
012,716,212
$ 730,000,894
$ 139,329,72412,752,816
0769 539
$ 152,852,079
$ 675,145,091171,107,948846,253,038
18,126,0884,282,0461 475 588
870,136,761
012,716,212
$ 882,852,973
21.3%
$ 39,345,35021,266,627
$ 60,611,977306,697
02 662 653
63,581,327
4,687,285819 965
$ 69,088,578
$ 12,182,51173,382
0
$ 12,317,908
$ 51,527,86121,340,00972,867,870
0368,712
2 662 65375,899,235
4,687,285819 965
$ 81,406,486
19.4%
$ 575,160,716179,621,760
$ 754,782,4763,819,204
18,126,0884 138 241
780,866,009
4,687,28513,536,177
$ 799,089,472
$ 151,512,23512,826,198
0831 554
$ 165,169,987
$ 726,672,952192,447,957919,120,909
18,126,0884,650,7584 138 241
946,035,996
4,687,28513,536,177
$ 964,259,459
21.2%
Phase-In
28 Phase 1 - April 1, 2011 o December 31, 201129 Hon-Fuel30 F uel31 F’.ate Deficiency- Per Phase 1
32 F ercent Increase - Per Phase 1 (Line 31 divided by Line 7)
33 F base 2 - January 1, 201234 I~ on-Fuel Deficiency
35 F ercent Increase - Per Phase 2 (Line 34 divided by Line 7)
36 Total Phase.In37 Fate Deficiency - Total Phase-In
38 Percent Increase - Total Phase-In (Line 37 divided by Line 7)
PNM North$ 98,389,855
12,752,816$ 111,142,671
15.5%
$ 41,709,408
5.8%
$ 152,852,079
21.3%
1. Due to the nature of I&S Fees PNM is proposing a tax adj clause treatment similar to gross receipts2. Total is not reflective of the revenue requirement ff PNM North and South were consolidated.
PNM South$ 8,599,168
73,382$ 8,672,550
13.6%
$ 3,645,358
5.7%
$ 12,317,908
19.4%
Total$ 106,989,024
12,826,198$ 119,815,221
15.3%
$ 45,354,766
5.8%
$ 165,169,987
21.2%
PNM Exihbit JAM-5Page 2 of 9
ooo~
PNM Exihbit JAM-5Page 3 of 9
PNM Exihbit JAM-5Page 4 of 9
PNM Exihbit JAM-5Page 5 of 9
PNM Exihbit JAM-5Page 6 of 9
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PNM Exihbit JAM-5Page 7 of 9
8 o
PNM Exihbit JAM-5Page 8 of 9
O
PNM Exihbit JAM-5Page 9 of 9
PNM Exhibit JAM-6Page 1 of 1
Publ ic Service Company of New Mexico201( New Mexico Rate Case No. 10-00086-UTTest Year Ending 12/31/11PNI~ Exhibit JAM 6Rate Case Expenses
Li=~eN,~. Description
A B CTotal Allocated Allocated
Electric PNM North1 PNM South,
Estimated Rate Case Expenses:
1,’;
17
18
Outside ConsultantsCase Preparation & Budget Process Testimony (ScottMadden)Pricewaterhouse CoopersGlobal Energy PartnersEffect of Regulatory Lag (Fetter Unlimited)Towers WatsonCognizantConcentricLoad Forecast (Continental Economics)Deloitte and ToucheMACDoug Gegax & Larry BlankAUS consultantsOutside Counsel (Cuddy & McCarthy, Miller Stratvert)Research & Polling, Inc.
Total Consultants
Other Costs (Reproduction, Postage, Etc.)
Total Estimated Rate Case Expenses
Estimated Rate Base(line 17 / 3 years)
521,45080,00041,54875,00080,45070,64075,000
192,63275,00074,31933,13392,000
700,0007,803
452 36969 40236 04465 06469 79261 28265 064
167,11265,06464,47328,74379,812
607,2646,770
69,08110,5985,5049,936
10,6589,3589,936
25,5209,9369,8464,389
12,18892,736
1,034
2,118,975 1,838,255 280,721
306,159 265,599 40,560
2,425,134 2,103,854 321,280
1,616,756 1,402,569 214,187
19 Estimated 2010 Rate Case Amortization ExpenseThree Year Amortization (line 17 / 3 years)
808,378 701,285 107,093
20
NOTE: In-house Legal Services are no.._jt included in the Rate Case Expensesfor this case.
Test Period Adjustment Calculation - Rate BaseEstimate Rate Base (line 18) 1,616,756 1,402,569 214,187
21 Total Test Period Adjustment 1,616,756 1,402,569 214,187
Test Period Adjustment Calculation - A & G Expense22 Estimated Amortization Expense (Line 19) 808,378 701,285 107,09323 Actual FPPCAC Audit Expenses 394,757 394,75724 Test Period A & G adjustment 1,203,135 1,096,041 107,093
Notes:1. PNM North allocated at 86. 75% and PNM South allocated at 13.25% based on Distribution W&S allocator from 530 Schedule K-1
PNM Exhibit JAM-7Page 1 of 2
UJ
PNM Exhibit JAM-7Page 2 of 2
~ om E l-n- o
P~Jblic Services Company of New Mexico2010 New Mexico Rate Case No. 10-00086-UTT=.=st Year Ending 12/31/11PNM Exhibit JAM-8
PNM Exhibit JAM-8Page 1 of 5
Permian Basin Gas Prices
I.ineNo. Date $/mmBtu
1 3/1/2006 5.542 5/1/2006 5.363 7/1/2006 5.274 9/1/2006 5.335 11/1/2006 6.136 1/1/2007 5.277 3/1/2007 6.618 5/1/2007 7.109 7/1/2007 5.9810 9/1/2007 5.0311 11/1/2007 6.5912 1/1/2008 6.4313 3/1/2008 8.1014 5/1/2008 9.8115 7/1/2008 12.15’16 9/1/2008 6.92’17 11/1/2008 2.47’18 1/1/2009 4.46’19 3/1/2009 2.5220 5/1/2009 2.8021 7/1/2009 3.3722 9/1/2009 2.4823 11/1/2009 4.0224 1/1/2010 5.6225 3/1/2010 4.69
PNM Exhibit JAM-8Page 2 of 5
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Public Services Company of New Mexico2010 New Mexico Rate Case No. 10-00086-UTTest Year Ending 12/31/11PNM Exhibit JAM-8
PNM Exhibit JAM-8Page 3 of 5
Palo Verde Hub Market Prices (Firm Day-Ahead)
Off-Pk On-Pkl.ine No. Date $/MWh $/MWh
1 3/1/2006 37.89 47.592 5/1/2006 27.16 50.783 7/1/2006 35.61 55.704 9/1/2006 39.92 57.095 11/1/2006 46.73 53.976 1/1/2007 40.81 47.457 3/1/2007 43.68 56.958 5/1/2007 44.90 67.789 7/1/2007 50.03 76.5110 9/1/2007 43.38 64.6511 11/1/2007 46.44 60.5012 1 / 1/2008 51.92 60.0013 3/1/2008 57.51 68.0914 5/1/2008 65.89 84.2215 7/1/2008 72.79 133.1416 9/1/2008 48.40 68.2517 11/1/2008 29.72 34.4818 1/1/2009 39.85 39.4319 3/1/2009 20.49 27.0020 5/1/2009 20.28 28.1221 7/1/2009 22.27 36.2422 9/1/2009 18.74 31.0323 1111/2009 32.36 38.6424 1/1/2010 35.27 52.3225 3/1/2010 31.93 42.70
PNM Exhibit JAM-8Page 4 of 5
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PNM Exhibit JAM-9Page 1 of 2
PNM Exhibit JAM-9Page 2 of 2
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PNM Exhibit JAM-14Page 1 of 2
®~0
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For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICO
PNM Exhibit JAM-15PNM NorthPage 1 of 6
RATE NO. 1A
RESIDENTIAL SERVICE
EXHIBIT JAM-15 PNM NORTH RESIDENTIAL 1A- PHASE I
Page X of X
APPLICABILITY: The rates on this Schedule are available for single-family houses, individual farmu=-=its, individual apartments, or separate living quarters ordinarily designated and recognized assingle-family living quarters for primarily domestic or home use. Service under this Schedule is nota, zailable for commercial rooming houses, multiple trailer parks, commercial, professional, orbusiness establishments and the like, which shall be served under another applicable commercialRate Schedule. All service shall be delivered at a single service location to be designated by theC3mpany.
S,~=rvice will be furnished subject to the Company’s Rules and Regulations and any subsequentrevisions. These Rules and Regulations are available at the Company’s office and are on file withthe New Mexico Public Regulation Commission. These Rules and Regulations are a part of thisS~;hedule as if fully written herein.
TERRITORY: All territory served by the Company in New Mexico.
T’(PE OF SERVICE: Service available under this Schedule will normally be 120/240 volt or1 ;10/208 volt single-phase service with single-phase motor operation being permitted where the sizeof individual motors does not exceed 5 HP. The following conditions of service also apply and arem :)re fully defined in the Company’s Rules and Regulations.
Three-phase service will be furnished under this Residential Rate Schedule only from existing linesor a 12-month continuous and non-seasonal basis.
NET RATE PER MONTH OR PART THEREOF FOR EACH SERVICE LOCATION: The rate forel,~ctric service provided shall be the sum of A, B, C, D, and E:
IN THE BILLING MONTHS OF: May-September October-April
(A) CUSTOMER CHARGE:(Per Metered Account)
$4.00/Bill $4.00/Bill
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXX
F or Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICO
RATE NO. 1A
PNM Exhibit JAM-15PNM NorthPage 2 of 6
RESIDENTIAL SERVICEPage X of X
(B) ENERGY CHARGE:
First 200 kWh per MonthNext 500 kWh per MonthAll Additional kWh per Month
$0.0851206/kWh$0.1358579/kW h$0.1679010/kWh
$0.0851206/kWh$0.1172265/kWh$0.1206590/kW h
(C:) FUEL AND PURCHASED POWER COST ADJUSTMENT: The above rates are based upon abase fuel cost for energy approved in NMPRC Case No. 10-00086-UT. For this tariff, the baserate is $0.0217225 per kWh, effective for fuel and purchased power expenses incurredbeginning April 1,2011.
All kWh usage under this tariff will be subject to a Fuel and Purchase Power Cost AdjustmentClause ("FPPCAC") factor calculated according to the provisions in PNM’s Rider 23.
The appropriate FPPCAC factor will be applied to all kWh appearing on bills rendered underthis tariff.
(1"~) OTHER APPLICABLE RIDERS: Any other PNM riders that may apply to this tariff shall bebilled in accordance with the terms of those riders.
(E) SPECIAL TAX AND ASSESSMENT ADJUSTMENT: Billings under this Schedule may beincreased by an amount equal to the sum of the taxes payable under the Gross Receipts andCompensating Tax Act and of all other taxes, fees, or charges (exclusive of ad valorem, stateand federal income taxes) payable by the utility and levied or assessed by any governmentalauthority on the public utility service rendered, or on the right or privilege of rendering theservice, or on any object or event incidental to the rendition of the service.
M 9NTHLY MINIMUM CHARGE: The monthly minimum charge under this Schedule is the customercl" ,arge.
INTERRUPTION OF SERVICE: The Company will use reasonable diligence to furnish a regulararid uninterrupted supply of energy. However, interruptions or partial interruptions may occur ors~ rvice may be curtailed, become irregular, or fail as a result of circumstances beyond the control of
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICO
RATE NO. 1A
PNM Exhibit JAM-15PNM NorthPage 3 of 6
RESIDENTIAL SERVICEPage X of X
tl" e Company, public enemies, accidents, strikes, legal processes, governmental restrictions, fuelshortages, breakdown or damages to generation, transmission, or distribution facilities of theCompany, repairs or changes in the Company’s generation, transmission, or distribution facilities,a~d in any such case the Company will not be liable in damages. Customers whose reliabilityr~quirements exceed those normally provided should advise the Company and contract foradditional facilities and increased reliability as may be required. The Company will not, under anycircumstances, contract to provide 100 percent reliability.
A’CCESSIBILITY: Equipment used to provide electric service must be physically accessible. Themeter socket must be installed on each service location at a point accessible from a public right-of-w.]y without any intervening wall, fence or other obstruction.
TERMS OF PAYMENT: All bills are net and payable within twenty (20) days from the date of bill. Ifpayment for any or all electric service rendered is not made within thirty (30) days from the date thebi I is rendered, the Company shall apply an additional late payment charge as defined in Rate 16Special Charges.
LIMITATION OF RATE: Electric service under this Schedule is not available for standby service,arid shall not be resold or shared with others.
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICO
RATE NO. 1A
PNM Exhibit JAM-15PNM NorthPage 4 of 6
RESIDENTIAL SERVICEPage X of X
EXHIBIT JAM-15 PNM NORTH RESIDENTIAL 1A-PHASE II
Af~PLICABILITY: The rates on this Schedule are available for single-family houses, individual farmu~its, individual apartments, or separate living quarters ordinarily designated and recognized assingle-family living quarters for primarily domestic or home use. Service under this Schedule is nota,~ailable for commercial rooming houses, multiple trailer parks, commercial, professional, orbusiness establishments and the like, which shall be served under another applicable commercialRate Schedule. All service shall be delivered at a single service location to be designated by theC .~mpany.
S,~.rvice will be furnished subject to the Company’s Rules and Regulations and any subsequentrevisions. These Rules and Regulations are available at the Company’s office and are on file withthe. New Mexico Public Regulation Commission. These Rules and Regulations are a part of thisS~.hedule as if fully written herein.
TERRITORY: All territory served by the Company in New Mexico.
T’~’PE OF SERVICE: Service available under this Schedule will normally be 120/240 volt or1 ,’10/208 volt single-phase service with single-phase motor operation being permitted where the sizeof individual motors does not exceed 5 HP. The following conditions of service also apply and arem :)re fully defined in the Company’s Rules and Regulations.
Three-phase service will be furnished under this Residential Rate Schedule only from existing linesor a 12-month continuous and nonseasonal basis.
NET RATE PER MONTH OR PART THEREOF FOR EACH SERVICE LOCATION: The rate forel~ctric service provided shall be the sum of A, B, C, D, and E:
IN THE BILLING MONTHS OF: May-September October-April
(A), CUSTOMER CHARGE: $4.00/Bill $4.00/Bill
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXX
F or Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICO
RATE NO. 1A
PNM Exhibit JAM-15PNM NorthPage 5 of 6
(Per Metered Account)
RESIDENTIAL SERVICEPage X of X
([~) ENERGY CHARGE:
First 200 kWh per MonthNext 500 kWh per MonthAll Additional kWh per Month
$0.0905338/kWh$0.1444977/kW h$0.1785786/kW h
$0.0905338/kWh$0.1246815/kWh$0.1283323/kW h
(c:) FUEL AND PURCHASED POWER COST ADJUSTMENT: The above rates are based upon abase fuel cost for energy approved in NMPRC Case No. 10-00086-UT. For this tariff, the baserate is $0.0217225 per kWh, effective for fuel and purchased power expenses incurredbeginning April 1,2011.
All kWh usage under this tariff will be subject to a Fuel and Purchase Power Cost AdjustmentClause ("FPPCAC") factor calculated according to the provisions in PNM’s Rider 23.
The appropriate FPPCAC factor will be applied to all kWh appearing on bills rendered underthis tariff.
(D) OTHER APPLICABLE RIDERS: Any other PNM riders that may apply to this tariff shall bebilled in accordance with the terms of those riders.
(E.) SPECIAL TAX AND ASSESSMENT ADJUSTMENT: Billings under this Schedule may beincreased by an amount equal to the sum of the taxes payable under the Gross Receipts andCompensating Tax Act and of all other taxes, fees, or charges (exclusive of ad valorem, stateand federal income taxes) payable by the utility and levied or assessed by any governmentalauthority on the public utility service rendered, or on the right or privilege of rendering theservice, or on any object or event incidental to the rendition of the service.
MONTHLY MINIMUM CHARGE: The monthly minimum charge under this Schedule is the customercKarge.
II~TERRUPTION OF SERVICE: The Company will use reasonable diligence to furnish a regulararid uninterrupted supply of energy. However, interruptions or partial interruptions may occur or
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXX
For Informational Purposes OnlyPNM Exhibit JAM-15
PNM NorthPage 6 of 6
PUBLIC SERVICE COMPANY OF NEW MEXICO
RATE NO. 1A
RESIDENTIAL SERVICEPage X of X
service may be curtailed, become irregular, or fail as a result of circumstances beyond the control oftl-e Company, public enemies, accidents, strikes, legal processes, governmental restrictions, fuelshortages, breakdown or damages to generation, transmission, or distribution facilities of theCompany, repairs or changes in the Company’s generation, transmission, or distribution facilities,and in any such case the Company will not be liable in damages. Customers whose reliabilityr~quirements exceed those normally provided should advise the Company and contract fora~Iditional facilities and increased reliability as may be required. The Company will not, under anycircumstances, contract to provide 100 percent reliability.
A.3CESSIBILITY: Equipment used to provide electric service must be physically accessible. Themeter socket must be installed on each service location at a point accessible from a public right-of-way without any intervening wall, fence or other obstruction.
TERMS OF PAYMENT: All bills are net and payable within twenty (20) days from the date of bill. Ifpayment for any or all electric service rendered is not made within thirty (30) days from the date thebil is rendered, the Company shall apply an additional late payment charge as defined in Rate 16Special Charges.
LIMITATION OF RATE: Electric service under this Schedule is not available for standby service,arid shall not be resold or shared with others.
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICOTNMP SERVICES
PNM Exhibit JAM-15PNM SouthPage 1 of 6
ORIGINAL RATE NO, 1A
SCHEDULE RSRESIDENTIAL SERVICE
Page X of X
EXHIBIT JAM-15 PNM SOUTH RESIDENTIAL 1A - PHASE I
APPLICABILITY:
Residential customers in single family dwellings or apartments, which are separately metered by theCompany for single or three phase (where three phase facilities are adjacent to property served),60-hertz, 120/240-volt alternating current.
Not available for resale, temporary, breakdown, stand-by or seasonal service, nor to single phasen’otors in excess of 7 1/2 horsepower individual capacity, hotels or apartment houses where moretl’an one apartment is measured through one meter or any location where business is regularlyc(~nducted.
T,!-’RRITORY:
A :)plies to all service area of the Company in New Mexico.
MONTHLY RATE:
Tl~e rate for electric service provided shall be the sum of A, B, C, D and E below.
Ilk THE BILLING MONTHS OF: May-September October-April
(,a) Customer Charge: $4.02/Bill $4.02/Bill(Per Metered Account)
(El)
(c)
Energy Charge: $0.1198564/kWh $0.1141489/kW h
Fuel and Purchased Power Cost Adjustment: The above rates are based upon a basefuel cost for energy approved in NMPRC Case No. 10-00086-UT. For this tariff, the baserate is $0.0379673 per kWh, effective for fuel and purchased power expenses incurredbeginning April 1,2011.
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICOTNMP SERVICES
PNM Exhibit JAM-15PNM SouthPage 2 of 6
ORIGINAL RATE NO. 1A
SCHEDULE RSRESIDENTIAL SERVICE
Page X of X
All kWh usage under this tariff will be subject to a Fuel and Purchase Power CostAdjustment Clause ("FPPCAC") factor calculated according to the provisions in PNM -TNMP Services Rider 3.
The appropriate FPPCAC factor will be applied to all kWh appearing on bills renderedunder this tariff.
Other Applicable Riders: Any other PNM TNMP Services riders that may apply to thistariff shall be billed in accordance with the terms of those riders.
(E) Tax Adjustment: Billings under this schedule may be increased by an amount equal tothe sum of the taxes payable under the Gross Receipts, Franchise Fees andCompensating Tax Act and of all other taxes, fees, or charges (exclusive of ad valorem,state and federal income taxes) payable by the utility and levied or assessed by anygovernmental authority on the public utility service rendered, or on the right or privilege ofrendering the service, or on any object or event incidental to the rendition of the service.
MINIMUM BILL
The minimum bill under this rate is the Customer Charge.
SPECIAL TERMS AND CONDITIONS:
This tariff schedule governs and supersedes all contracts or agreements between the Company andany of its customers served under this tariff schedule. Any service provided under this schedule isfu "[her subject to the Company’s rules and regulations on file with the New Mexico Public RegulationCommission. A contract may be required for extension of service under the Company’s extensionpolicy.
TERMS OF PAYMENT
AI bills are net and payable within twenty (20) days from the date of the bill. If payment for any or allel~:~ctric service rendered is not made within thirty (30) days from the date the bill is rendered, the
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICOTNMP SERVICES
PNM Exhibit JAM-15PNM SouthPage 3 of 6
ORIGINAL RATE NO. 1A
SCHEDULE RSRESIDENTIAL SERVICE
Page X of X
Company shall apply an additional late payment charge as defined in Rate 20 MiscellaneousS ~.=rvice Charges.
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICOTNMP SERVICES
PNM Exhibit JAM-15PNM SouthPage 4 of 6
ORIGINAL RATE NO. 1A
SCHEDULE RSRESIDENTIAL SERVICE
Page X of X
EXHIBIT JAM-15 PNM SOUTH RESIDENTIAL 1A - PHASE II
APPLICABILITY:
Residential customers in single family dwellings or apartments, which are separately metered by theCompany for single or three phase (where three phase facilities are adjacent to property served),60-hertz, 120/240-volt alternating current.
Not available for resale, temporary, breakdown, stand-by or seasonal service, nor to single phasen’otors in excess of 7 1/2 horsepower individual capacity, hotels or apartment houses where moretitan one apartment is measured through one meter or any location where business is regularlyc(}.nducted.
TI-.ERRITORY:
A;.~plies to all service area of the Company in New Mexico.
MONTHLY RATE:
The rate for electric service provided shall be the sum of A, B, C, D and E below.
Ilk THE BILLING MONTHS OF:
(,~) Customer Charge:(Per Metered Account)
May-September
$4.02/Bill
October-April
$4.02/Bill
(El)
(c)
Energy Charge: $0.1280018/kWh $0.1219065/kWh
Fuel and Purchased Power Cost Adjustment: The above rates are based upon a basefuel cost for energy approved in NMPRC Case No. 10-00086-UT. For this tariff, the baserate is $0.0379673 per kWh, effective for fuel and purchased power expenses incurredbeginning April 1,2011.
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXXX
F,,~r Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICOTNMP SERVICES
PNM Exhibit JAM-15PNM SouthPage 5 of 6
ORIGINAL RATE NO. 1A
SCHEDULE RSRESIDENTIAL SERVICE
Page X of X
All kWh usage under this tariff will be subject to a Fuel and Purchase Power CostAdjustment Clause ("FPPCAC") factor calculated according to the provisions in PNM -TNMP Services Rider 3.
The appropriate FPPCAC factor will be applied to all kWh appearing on bills renderedunder this tariff.
Other Applicable Riders: Any other PNM - TNMP Services riders that may apply to thistariff shall be billed in accordance with the terms of those riders.
(E) Tax Adjustment: Billings under this schedule may be increased by an amount equal tothe sum of the taxes payable under the Gross Receipts, Franchise Fees andCompensating Tax Act and of all other taxes, fees, or charges (exclusive of ad valorem,state and federal income taxes) payable by the utility and levied or assessed by anygovernmental authority on the public utility service rendered, or on the right or privilege ofrendering the service, or on any object or event incidental to the rendition of the service.
MINIMUM BILL
Tt" e minimum bill under this rate is the Customer Charge.
SPECIAL TERMS AND CONDITIONS:
Tt- is tariff schedule governs and supersedes all contracts or agreements between the Company andany of its customers served under this tariff schedule. Any service provided under this schedule isfurther subject to the Company’s rules and regulations on file with the New Mexico Public RegulationCommission. A contract may be required for extension of service under the Company’s extensionpolicy,
TERMS OF PAYMENT
All bills are net and payable within twenty (20) days from the date of the bill. If payment for any or allelectric service rendered is not made within thirty (30) days from the date the bill is rendered, the
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXXX
For Informational Purposes Only
PUBLIC SERVICE COMPANY OF NEW MEXICOTNMP SERVICES
PNM Exhibit JAM-15PNM SouthPage 6 of 6
ORIGINAL RATE NO. 1A
SCHEDULE RSRESIDENTIAL SERVICE
Page X of X
Company shall apply an additional late payment charge as defined in Rate 20 MiscellaneousService Charges.
Advice Notice No. XX
Gerard OrtizDirector, Regulatory Policy & CaseManagement
GCG #XXXXX
Public Services Company of New Mexico2010 N .=w Mexico Rate Case No. 10-00086-UTTest Y~ar Ending 12/31111PNM E ~hibit JAM-16 PNM North
Develo ~ment of Fixed Cost Recovery (FCR) Rider
LineNo.
12
3456789
1011121314
15
1617
DescriptionT, ,~st Period UnitsA lnual Number of CustomersA ~nual Energy Sales
P ~ase I Revenue Requirements by Cost Component (1)Customer Revenue Requirements (Fixed)Demand Revenue Requirements (Fixed)
Total Fixed Cost RequirementsEnergy (Non-Fuel) Revenue Requirements (Variable)Base Fuel Requirements (Variable)
1"otal Variable Cost RequirementsT=~Ial Phase I Revenue Requirements
PItase I Pricing by Revenue Component (t)::ustomer Charge Revenues (2):)emand Charge Revenues=’!nergy Charge Revenues
T(,tal Phase I Revenues:ixed Cost Recovery: Customer and Demand Charges:ixed Cost Recovery: Variable Energy Charges (3)
PIIASE I FCC AND FCE FACTOR SUMMARIES:ixed Cost per Customer Factor (FCC)
:ixed Cost per Energy Factor (FCE)
A B C DResidential Service Small Power Service
Schedules 1A and 1B Schedules 2A and 2BRev Reqmts - $ Unit Costs Rev Reqmts - $ Unit Costs
4,955,8902,882,121,094
60,382,657 12.18 14,494,292213,349,757 43.05 63,492,418273,732,414 55.23 77,986,709
17,225,725 0.0059768 5,460,30362,606,981 0.0217225 18,672,54079,832,706 0.0276993 24,132,844
353,565,120 0.1226753 102,119,553
19,878,031 4.01 4,287,233
333,687,089 0.1157783 97,832,320353,565,120 0.1226753 102,119,553
19,878,031 4,287,233253,854,383 73,699,476
253,854,383 $ 51.22 73,699,476 $253,854,383 $ 0.0880790 73,699,476 $
Pt,ase II Revenue Requirements by Cost Component (t)18 Customer Revenue Requirements (Fixed)19 I)emand Revenue Requirements (Fixed)20 Total Fixed Cost Requirements21 Energy (Non-Fuel) Revenue Requirements (Variable)22 I~ase Fuel Requirements (Variable)23 Tctal Variable Cost Requirements24 Tclal Phase II Revenue Requirements
64,786,594 13.07 15,063,584228,910,166 46.19 65,986,212293,696,760 59.26 81,049,796
18,482,062 0.0064127 5,674,76862,606,981 0.0217225 18,672,54081,089,043 0.0281352 24,347,308
374,785,803 0.1300382 105,397,104
PI-ase II Pricing by Revenue Component (1)25 ( ~ustomer Charge Revenues (2) 19,878,031 4.01 4,287,23326 [)emand Charge Revenues27 Einergy Charge Revenues 354,907,772 0.1231412 101,109,87128 To :al Phase I Revenues 374,785,803 0,1300382 105,397,10429 Fixed Cost Recovery: Customer and Demand Charges 19,878,031 4,287,23330 Fixed Cost Recovery: Variable Energy Charges (3) 273,818,729 76,762,563
PNM Exhibit JAM-16Page 1 of 1
Notes
532,119 CUST859,592,985 kWh SALES
27.24 S/CUST119.32 $/CUST146.56 L3 + L4
0.0063522 S/kWh SALES0.0217225 S/kWh SALES0.0280747 L6 + L70.1187999 L5 + L8
8.06 S/CUST
o. 1138124 S/kWh SALES0.1187999 L10+L11+L12
L10+L11
L5-L14
138.50 L15/CUST0.0857376 L15/SALES
28.31 S/CUST124.01 S/CUST152.32 L18 + L19
0.0066017 S/kWhSALES0.0217225 S/kWh SALES0.0283242 L21 + L220.1226128 L22 + L23
8.06 $/CUST
0.1176253 S/kWhSALES0.1226128 L25+L26+L27
L25 + L26
L20- L29
3132
PI’ASE II FCC AND FCE FACTOR SUMMARIESf ixed Cost per Customer Factor (FCC) 273,818,729 $ 55.25 76,762,563 $ 144.26f ixed Cost per Energy Factor (FCE) 273,818,729 $ 0.0950060 76,762,503 $ 0.0893011
(~) ~evenue requirements without revenue tax(2){’ixed metering costs in Schedules 1B and 2B raise the average S/customer above the $4.00 and $7.75 for Residential 1A and Small Power 1A(3), ~llowed fixed cost recovery" amount
L30/CUST
L30/SALES
PNM Exhibit JAM 17
~3z
r,,’I.L
o
0I.L,
PNM Exhibit JAM-17Page 2 of 2
PNM Exhibit JAM-18Page 1 of 3
PNM Exhibit JAM-18Page 2 of 3
z ._x E
W
<:
00000 0
PNM Exhibit JAM-18Page 3 of 3
PNM Exhibit JAM-19Page 1 of 2
Public Services Company of New Mexico2010 I~ew Mexico Rate Case No. 10-00086-UTTest Y .~ar Ending 12/31111PNM Exhibit JAM-19 PNM NorthDevelc pment of Fixed Cost Recovery Requirements for New Interconnected Customers
ASchedules 1-2
Line Residential SrvNo. Description Small Pwr Srv
1 ,~nnual Number of Customers 5,488,0092 ,~nnual Energy Sales 3,741,714,079
F hase I Revenue Requirements by Cost Component (t)3 Customer Revenue Requirements (Fixed)4 Demand Revenue Requirements (Fixed)5 Total Fixed Cost Requirements6 Energy (Non-Fuel) Revenue Requirements (Variable)7 Base Fuel Requirements (Variable)8 Total Variable Cost Requirements9 T:~tal Phase I Revenue Requirements
Phase I Pricing by Revenue Component(t)
10 Customer Charge Revenues
11 Demand Charge Revenues12 !--nergy Charge Revenues13 T~tal Phase I Revenues14 Fixed Cost Recovery: Customer and Demand Charges15 Fixed Cost Recovery: Variable Energy Charges
BSchedules 3-4-11Gen Pwr Sty, LrgPwr Srv, Wtr/Swr
52,3113,373,285,631
CSchedules 15-30
Industrial PwrUniv - Mfg
24590,404,324
74,876,949 5,120,497 312,029276,842,175 193,617,260 22,688,916351,719,124 198,737,757 23,000,946
22,686,028 20,719,032 3,352,92981,279,522 72,944,111 12,519,273
103,965,549 93,663,143 15,872,201455,684,673 292,400,900 38,873,147
41,289,603 61,191,546 5,252,18952,707,333 5,172,522
414,395,070 178,502,022 28,448,437455,684,673 292,400,901 38,873,147
41,289,603 113,898,879 10,424,710310,429,521 84,838,879 12,576,235
Notes
L3 + L4
L6 + L7L5 + L8
L10+L11+L12L10 + Lll
L5- L14
P ~ase I - DG Fixed Cost Recovery Requirements16 Fixed Cost Recovery on kWh Basis17 Less: Avoided Fuel Cost!8 Avoided Energy Losses19 Avoided Load Management20 Phase I - Fixed Cost Recovery Charge - $1kW11
Pilase II Revenue Requirements by Cost Component (t)
21 Customer Revenue Requirements (Fixed)22 Demand Revenue Requirements (Fixed)23 Total Fixed Cost Requirements24 Energy (Non-Fuel) Revenue Requirements (Variable)25 Base Fuel Requirements (Variable)26 [oral Variable Cost Requirements27 T(,tal Phase II Revenue Requirements
Please II Pricing by Revenue Component (t)28 ~;ustomer Charge Revenues29 .)emand Charge Revenues30 ~!nergy Charge Revenues31 T(tal Phase II Revenues32 :ixed Cost Recovery: Customer and Demand Charges33 :ixed Cost Recovery: Variable Energy Charges
$ 0.082965 $ 0.025150$ 0.001112 $ 0.001095$ 0.000078 $ 0.000076$ 0.000007 $ 0.000007$ 0.0817676 $ 0.0239721
$$$$$
0.0213010.0010810.0000750.000007
0.0201376
L15/L2
L16-L17-L18-L19
79,850,178 5,441,314 339,376294,896,378 205,818,416 24,672,932374,746,556 211,259,731 25,012,308 L21 + L22
24,156,830 22,043,352 3,648,05581,279,522 72,944,111 12,519,273
105,436,351 94,987,463 16,167,328 L24 + L25480,182,908 306,247,193 41,179,636 L23 + L26
41,289,603 63,753,226 5,551,30755,241,236 5,468,350
438,893,305 187,252,731 30,159,979480,182,908 306,247,194 41,179,636
41,289,603 118,994,463 11,019,657333,456,953 92,265,268 13,992,651
Please II - DG Fixed Cost Recovery Requirements34 i-ixed Cost Recovery on kWh Basis $ 0.089119 $ 0.027352 $ 0.02370035 Less: Avoided Fuel Cost $ 0.001112 $ 0.001095 $ 0.00108136 Avoided Energy Losses $ 0.000078 $ 0.000076 $ 0.00007537 Avoided Load Management $ 0.000007 $ 0.000007 $ 0.00000738 Phase II - Fixed Cost Recovery Charge - $/klNh $ 0.0879215 $ 0.0261736 $ 0.022536639 Protypical 1 kW AC Output Solar Installation (195 kWh/Mo) $ 17.14 $ 5.10 $ 4.39
L28+29+230L28+ L29L23-L32
L34/L2
L34o35-36-37L38"195
Revenue requirements without revenue tax( ~Assumes 1 kW AC output on the customer’s side of the meter and average insolation hours / month (195)
Public ~ervices Company of New Mexico2010 N .~.w Mexico Rate Case No. 10-00086-UTTest Y~,ar Ending 12/31111PNM E (hiblt JAM-19 PNM SouthDevelo ~ment of Fixed Cost Recovery Requirements for New Interconnected Customers
LineNo.1 A~lnual Number of Customers2 A~nual Energy Sales
Description
A BSchedules 1,2,5 Schedule 3
Residential, General, LargeSchool General
615,313 864462,386,289 76,651,004
PNM Exhibit JAM-19Page 2 of 2
Notes
Pllase I Revenue Requirements by Cost Component (1)3 Customer Revenue Requirements (Fixed)4 Demand Revenue Requirements (Fixed)5 l’otal Fixed Cost Requirements6 Energy (Non-Fuel) Revenue Requirements (Variable)7 Base Fuel Requirements (Variable)8 i"otal Variable Cost Requirements9 T(,tal Phase I Revenue Requirements
6,209,146 63,05032,355,795 4,373,53038,564,941 4,436,580 L3 + L4
2,282,012 366,68817,467,181 2,895,58119,749,193 3,262,269 L6 + L758,314,134 7,698,848 L5 + L8
Please I Pricing by Revenue Component (1)
! 0 , ~;ustomer Charge Revenues11 Oemand Charge Revenues12 I~inergy Charge Revenues13 Total Phase I Revenues14 I:ixed Cost Recovery: Customer and Demand Charges15 I-ixed Cost Recovery: Variable Energy Charges
4,686,648 1,255,0682,095,604
53,627,485 4,348,17758,314,134 7,698,848
4,686,648 3,350,67133,878,292 1,085,909
L10+11+12
L10 + LliL5- L14
Pf ase I - Interconnected Customer Fixed Cost Recovery Requirements16 Fixed Cost Recovery on kWh Basis17 Less: Avoided Fuel Cost18 Avoided Energy Losses19 Avoided Load Management20 Phase I - Fixed Cost Recovery Charge - S/kWh
0.0732684 0.01416690.0011121 0.00111210.0000776 0.00007760.0000072 0.00000720.0720714 $ 0.0129700
L15 ! L2Exhibit JAM-20Exhibit JAM-20Exhibit JAM-20
L16-L17-L18-L19
PI, ase II Revenue Requirements by Cost Component (i)
22 Customer Revenue Requirements (Fixed)23 Demand Revenue Requirements (Fixed)24 ~’otal Fixed Cost Requirements25 Energy (Non-Fuel) Revenue Requirements (Variable)26 Base Fuel Requirements (Variable)27 1Oral Variable Cost Requirements28 To al Phase II Revenue Requirements
Ph ase II Pricing by Revenue Component (1)29 (~ ustomer Charge Revenues30 [~emand Charge Revenues31 Energy Charge Revenues32 Toal Phase II Revenues33 Fixed Cost Recovery: Customer and Demand Charges34 Fixed Cost Recovery: Variable Energy Charges
Ph ~se II - Interconnected Customer Fixed Cost Recovery Requirements35 Fi×ed Cost Recovery on kwh Basis36 Less: Avoided Fuel Cost37 Avoided Energy Losses38 Avoided Load Management39 P hase II - Fixed Cost Recovery Charge - $1kWh
6,687,079 68,85034,769,753 4,775,85441,456,832 4,844,704 L22 + L:23
2,449,829 400,41917,467,181 2,895,58119,917,010 3,296,000 L25 + L2661,373,842 8,140,704 L24+L27
4,686,648 1,325,4312,216,418
56,687,194 4,598,85561,373,842 8,140,704
4,686,648 3,541,84936,770,184 1,302,855
40
L29+L30_L31L29 + L30L24- L33
E’.xample: Protypical 1 kW AC Output Solar Installation (2) $
Revenue requirements without revenue tax{2)Assumes 1 kW AC output from the inverter and average insolation hours / month (200)
15.27 $ 3.08
0.0795227 0.0169972 L34 / L20.0011121 0.0011121 Exhibit JAM-200.0000776 0.0000776 Exhibit JAM-200.0000072 0.0000072 Exhibit JAM-200.07R~7 $ 0.0158003 L35-36-37-38
PNM Exhibit JAM-20Page 1 of 1
PNM Exhibit JAM-21Pa.qe 1 of 2
Watts per Square Meter
| I | |
/I I
|
PNM Exhibit JAM-21Paqe 1 of 2
Watts per Square Meter
BEFORE THE NEW MEXICO PUBLIC REGULATION COMMISSION
IN THE MATTER OF THE APPLICATIONOF PUBLIC SERVICE COMPANY OF NEWNEXICO FOR REVISION OF ITS RETAILELECTRIC RATES PURSUANT TO ADVICEN I)TICE NOS. 397 AND 32 (FORMERT~MP SERVICES),
P13BLIC SERVICE COMPANY OF NEWM IEXICO,
Applicant.
))))))))))
Case No. 10-00086-UT
AFFIDAVIT OF JAMES A. MAYHEW
STATE OF NEW MEXICO )) ss
COUNTY OF BERNALILLO )
James A. Mayhew, Director of Pricing and Cost of Service for PNM, upon being duly
s~om according to law, under oath, deposes and states: I have read the foregoing Direct
Testimony, including Exhibits, and it is true and accurate based on my own personal knowledge
an,] belief.
SIGNED this ~ day of May, 2010.
A. MAYHE ~/ ~
S[ IBSCRIBED AND SWORN to before me this day of May, 2010.~..._~
~AI~Y PUBLIC IN AND FORTHE STATE OF NEW MEXICO
My CommissionExpires:
GCG # 503047