edocs.puc.state.or.usaugust 30, 2013 nwn opuc advice no. 13-17 /ug ________ (um 1406) via electronic...
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August 30, 2013 NWN OPUC Advice No. 13-17 /UG ________
(UM 1406) VIA ELECTRONIC FILING Public Utility Commission of Oregon 3930 Fairview Industrial Park Drive SE Post Office Box 1088 Salem, Oregon 97308-1088 Attn: Filing Center Re: Schedule 177: Adjustments to Rates for System Integrity Program (SIP)
Northwest Natural Gas Company, dba NW Natural (“NW Natural” or the “Company”), files herewith revisions to its Tariff, P.U.C. Or. 25, stated to become effective with service on and after November 1, 2013, as follows: First Revision of Sheet 177-3, Schedule 177, “System Integrity Program Rate Adjustment (continued);” and
First Revision of Sheet 177-4, Schedule 177, “System Integrity Program Rate Adjustment (continued).”
The purpose of this filing is to develop the permanent rate increments associated with the Company’s System Integrity Program (SIP).
For purposes of this filing, the temporary adjustments to permanent rates that
relate to SIP include: Part A: Bare Steel, Part B: Transmission Integrity Management (TIMP); and Part C: Distribution Integrity Management (DIMP) pursuant to a Stipulation adopted by the Commission in Docket UG 221.
The number of customers affected by the proposed change is 556,922
residential customers, 57,339 commercial customers, and 296 industrial customers. The effect of this filing is to increase the Company’s annual revenues by $2,236,202. The effect of applying adjustments to customer rates is a net increase of $0.00407 on residential Schedule 2 customer rates, and a net increase of $0.00341 on
ONITA R. KING
Rates & Regulatory Affairs Tel: 503.721.2452 Fax: 503.721.2516 email: [email protected]
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Public Utility Commission of Oregon UG ___; NWN Advice No. OPUC 13-17 August 30, 2013, Page 2
commercial Schedule 3 rates. The adjustments for all other rate schedules can be found in Exhibit A to this filing.
In addition to the supporting materials submitted as part of this filing, the
Company separately provided work papers in electronic format, all of which are incorporated herein by reference. The Company requests that the tariff sheets filed herewith be permitted to become effective with service on and after November 1, 2013. Copies of this letter and the filing made herewith are available in the Company's main office in Oregon and on its website at www.nwnatural.com. The Company waives paper service in this proceeding. Please address correspondence on this matter to me at [email protected], with copies to the following:
Kelley C. Miller, Rates Specialist Cristan Kelley, Rate Analyst Rates & Regulatory Affairs Rates & Regulatory Affairs NW Natural NW Natural 220 NW Second Avenue 220 NW Second Avenue Portland, Oregon 97209 Portland, Oregon 29709 Telecopier: (503) 721-2516 Telecopier: (503) 721-2516 Telephone: (503) 226-4211, x3589 Telephone: (503) 226-4211, x3582 [email protected] and [email protected] [email protected]
Sincerely, NW NATURAL /s/ Onita R. King Onita R. King Rates & Regulatory Affairs
Attachments: Exhibit A – Supporting Materials
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NORTHWEST NATURAL GAS COMPANY P.U.C. Or. 25 First Revision of Sheet 177-3 Cancels Original Sheet 177-3
Issued August 30, 2013 Effective with service on NWN OPUC Advice No. 13-17 and after November 1, 2013
Issued by: NORTHWEST NATURAL GAS COMPANY d.b.a. NW Natural
220 N.W. Second Avenue Portland, Oregon 97209-3991
SCHEDULE 177 SYSTEM INTEGRITY PROGRAM RATE ADJUSTMENT
(continued)
APPLICATION TO RATE SCHEDULES: Effective: November 1, 2013 The Adjustments shown below are included in the Base Adjustments in the listed Rate Schedules:
Schedule
Block
Part A
Part B Part C Total Adjustment
70% 30%
2 $0.00190 $0.00088 $0.00095 $0.00034 $0.00407
3 (CSF) $0.00190 $0.00061 $0.00066 $0.00024 $0.00341
3 (ISF) $0.00190 $0.00052 $0.00057 $0.00021 $0.00320
27 $0.00190 $0.00088 $0.00095 $0.00034 $0.00407
31 (CSF) Block 1 $0.00190 $0.00043 $0.00046 $0.00017 $0.00296
Block 2 $0.00190 $0.00039 $0.00042 $0.00015 $0.00286
31(CTF) Block 1 $0.00190 $0.00047 $0.00051 $0.00019 $0.00307
Block 2 $0.00190 $0.00043 $0.00047 $0.00017 $0.00297
31 (ISF) Block 1 $0.00000 $0.00033 $0.00036 $0.00013 $0.00082
Block 2 $0.00000 $0.00030 $0.00032 $0.00012 $0.00074
31 (IFT) Block 1 $0.00000 $0.00034 $0.00037 $0.00013 $0.00084
Block 2 $0.00000 $0.00031 $0.00033 $0.00012 $0.00076
32 (CSF) Block 1 $0.00000 $0.00026 $0.00028 $0.00010 $0.00064
Block 2 $0.00000 $0.00022 $0.00024 $0.00009 $0.00055
Block 3 $0.00000 $0.00016 $0.00017 $0.00006 $0.00039
Block 4 $0.00000 $0.00009 $0.00010 $0.00004 $0.00023
Block 5 $0.00000 $0.00005 $0.00006 $0.00002 $0.00013
Block 6 $0.00000 $0.00003 $0.00003 $0.00001 $0.00007
(continue to Sheet 177-4)
(T) (C)
(C)
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NORTHWEST NATURAL GAS COMPANY P.U.C. Or. 25 First Revision of Sheet 177-4 Cancels Original Sheet 177-4
Issued August 30, 2013 Effective with service on NWN OPUC Advice No. 13-17 and after November 1, 2013
Issued by: NORTHWEST NATURAL GAS COMPANY d.b.a. NW Natural
220 N.W. Second Avenue Portland, Oregon 97209-3991
SCHEDULE 177 SYSTEM INTEGRITY PROGRAM RATE ADJUSTMENT
(continued)
APPLICATION TO RATE SCHEDULES: Effective: November 1, 2013 The Adjustments shown below are included in the Base Adjustments in the listed Rate Schedules:
Schedule
Block
Part A
Part B Part C Total Adjustment
70% 30%
32 (ISF) Block 1 $0.00000 $0.00020 $0.00022 $0.00008 $0.00050
Block 2 $0.00000 $0.00017 $0.00019 $0.00007 $0.00043
Block 3 $0.00000 $0.00012 $0.00013 $0.00005 $0.00030
Block 4 $0.00000 $0.00007 $0.00008 $0.00003 $0.00018
Block 5 $0.00000 $0.00004 $0.00004 $0.00002 $0.00010
Block 6 $0.00000 $0.00002 $0.00002 $0.00001 $0.00005
32 (TF) Block 1 $0.00000 $0.00019 $0.00021 $0.00008 $0.00048
Block 2 $0.00000 $0.00017 $0.00018 $0.00006 $0.00041
Block 3 $0.00000 $0.00012 $0.00013 $0.00005 $0.00030
Block 4 $0.00000 $0.00007 $0.00007 $0.00003 $0.00017
Block 5 $0.00000 $0.00004 $0.00004 $0.00002 $0.00010
Block 6 $0.00000 $0.00002 $0.00002 $0.00001 $0.00005
32 (CSI) Block 1 $0.00000 $0.00019 $0.00021 $0.00007 $0.00047
Block 2 $0.00000 $0.00016 $0.00018 $0.00006 $0.00040
Block 3 $0.00000 $0.00011 $0.00012 $0.00004 $0.00027
Block 4 $0.00000 $0.00007 $0.00007 $0.00003 $0.00017
Block 5 $0.00000 $0.00004 $0.00004 $0.00001 $0.00009
Block 6 $0.00000 $0.00002 $0.00002 $0.00001 $0.00005
32 (ISI) Block 1 $0.00000 $0.00019 $0.00020 $0.00007 $0.00046
Block 2 $0.00000 $0.00016 $0.00017 $0.00006 $0.00039
Block 3 $0.00000 $0.00011 $0.00012 $0.00004 $0.00027
Block 4 $0.00000 $0.00007 $0.00007 $0.00003 $0.00017
Block 5 $0.00000 $0.00004 $0.00004 $0.00001 $0.00009
Block 6 $0.00000 $0.00002 $0.00002 $0.00001 $0.00005
32 (TI) Block 1 $0.00000 $0.00017 $0.00019 $0.00007 $0.00043
Block 2 $0.00000 $0.00015 $0.00016 $0.00006 $0.00037
Block 3 $0.00000 $0.00010 $0.00011 $0.00004 $0.00025
Block 4 $0.00000 $0.00006 $0.00006 $0.00002 $0.00014
Block 5 $0.00000 $0.00003 $0.00004 $0.00001 $0.00008
Block 6 $0.00000 $0.00002 $0.00002 $0.00001 $0.00005
33 (all) $0.00000 $0.00001 $0.00001 $0.00000 $0.00002
(T) (C) (C)
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EXHIBIT A
BEFORE THE PUBLIC UTILITY COMMISSION
OF OREGON
NW NATURALSUPPORTING MATERIALS
NWN OPUC Advice No. 13-17August 30, 2013
UM 1406System Integrity Program (SIP)
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Page No.
Net Effect of Increments 1Calculation of Increments Allocated on Equal Percentage of Margin 2Calculation of Increments Allocated on Equal Cent per Therm 3Cost of Service Summary 4Bare Steel Cost of Service 5Transmission Integrity Management Program (TIMP) Cost of Service 6Distribution Integrity Management Program (DIMP) Cost of Service 7Effects on Revenue 8
Exhibit ASupporting Materials
System Integrity Program - UM 1406
NWN OPUC Advice No. 13-17
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NW Natural
Rates & Regulatory Affairs
2013-14 PGA: August Filing
Summary of PERMANENT Increments
1
2 REMOVE REMOVE REMOVE
Permanent
Increments ADD ADD ADD ADD Net Effect
3 Current Current Current to Remove Proposed Proposed Proposed Proposed of
4 Bare Steel SIP: DIMP SIP: TIMP Subtotal
SIP: Bare
Steel 70%
SIP: Bare
Steel 30% SIP: DIMP SIP: TIMP
SIP
Increments
5 (K=sum E thru J)
6 Schedule Block A C D E F G I J K
7 Intentionally blank
8 Intentionally blank
9 2R 0.00000 0.00000 0.00000 0.00000 0.00190 0.00088 0.00034 0.00095 0.00407
10 3C Firm Sales 0.00000 0.00000 0.00000 0.00000 0.00190 0.00061 0.00024 0.00066 0.00341
11 Intentionally blank
12 3I Firm Sales 0.00000 0.00000 0.00000 0.00000 0.00190 0.00052 0.00021 0.00057 0.00320
13 Intentionally blank
14 27 Dry Out 0.00000 0.00000 0.00000 0.00000 0.00190 0.00088 0.00034 0.00095 0.00407
15 Intentionally blank
16 31C Firm Sales Block 1 0.00000 0.00000 0.00000 0.00000 0.00190 0.00043 0.00017 0.00046 0.00296
17 Block 2 0.00000 0.00000 0.00000 0.00000 0.00190 0.00039 0.00015 0.00042 0.00286
18 31C Firm Trans Block 1 0.00000 0.00000 0.00000 0.00000 0.00190 0.00047 0.00019 0.00051 0.00307
19 Block 2 0.00000 0.00000 0.00000 0.00000 0.00190 0.00043 0.00017 0.00047 0.00297
20 Intentionally blank
21 Intentionally blank
22 31I Firm Sales Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00033 0.00013 0.00036 0.00082
23 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00030 0.00012 0.00032 0.00074
24 31I Firm Trans Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00034 0.00013 0.00037 0.00084
25 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00031 0.00012 0.00033 0.00076
26 Intentionally blank
27 Intentionally blank
28 32C Firm Sales Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00026 0.00010 0.00028 0.00064
29 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00022 0.00009 0.00024 0.00055
30 Block 3 0.00000 0.00000 0.00000 0.00000 0.00000 0.00016 0.00006 0.00017 0.00039
31 Block 4 0.00000 0.00000 0.00000 0.00000 0.00000 0.00009 0.00004 0.00010 0.00023
32 Block 5 0.00000 0.00000 0.00000 0.00000 0.00000 0.00005 0.00002 0.00006 0.00013
33 Block 6 0.00000 0.00000 0.00000 0.00000 0.00000 0.00003 0.00001 0.00003 0.00007
34 32I Firm Sales Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00020 0.00008 0.00022 0.00050
35 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00017 0.00007 0.00019 0.00043
36 Block 3 0.00000 0.00000 0.00000 0.00000 0.00000 0.00012 0.00005 0.00013 0.00030
37 Block 4 0.00000 0.00000 0.00000 0.00000 0.00000 0.00007 0.00003 0.00008 0.00018
38 Block 5 0.00000 0.00000 0.00000 0.00000 0.00000 0.00004 0.00002 0.00004 0.00010
39 Block 6 0.00000 0.00000 0.00000 0.00000 0.00000 0.00002 0.00001 0.00002 0.00005
40 32 Firm Trans Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00019 0.00008 0.00021 0.00048
41 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00017 0.00006 0.00018 0.00041
42 Block 3 0.00000 0.00000 0.00000 0.00000 0.00000 0.00012 0.00005 0.00013 0.00030
43 Block 4 0.00000 0.00000 0.00000 0.00000 0.00000 0.00007 0.00003 0.00007 0.00017
44 Block 5 0.00000 0.00000 0.00000 0.00000 0.00000 0.00004 0.00002 0.00004 0.00010
45 Block 6 0.00000 0.00000 0.00000 0.00000 0.00000 0.00002 0.00001 0.00002 0.00005
46 32C Interr Sales Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00019 0.00007 0.00021 0.00047
47 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00016 0.00006 0.00018 0.00040
48 Block 3 0.00000 0.00000 0.00000 0.00000 0.00000 0.00011 0.00004 0.00012 0.00027
49 Block 4 0.00000 0.00000 0.00000 0.00000 0.00000 0.00007 0.00003 0.00007 0.00017
50 Block 5 0.00000 0.00000 0.00000 0.00000 0.00000 0.00004 0.00001 0.00004 0.00009
51 Block 6 0.00000 0.00000 0.00000 0.00000 0.00000 0.00002 0.00001 0.00002 0.00005
52 32I Interr Sales Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00019 0.00007 0.00020 0.00046
53 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00016 0.00006 0.00017 0.00039
54 Block 3 0.00000 0.00000 0.00000 0.00000 0.00000 0.00011 0.00004 0.00012 0.00027
55 Block 4 0.00000 0.00000 0.00000 0.00000 0.00000 0.00007 0.00003 0.00007 0.00017
56 Block 5 0.00000 0.00000 0.00000 0.00000 0.00000 0.00004 0.00001 0.00004 0.00009
57 Block 6 0.00000 0.00000 0.00000 0.00000 0.00000 0.00002 0.00001 0.00002 0.00005
58 32 Interr Trans Block 1 0.00000 0.00000 0.00000 0.00000 0.00000 0.00017 0.00007 0.00019 0.00043
59 Block 2 0.00000 0.00000 0.00000 0.00000 0.00000 0.00015 0.00006 0.00016 0.00037
60 Block 3 0.00000 0.00000 0.00000 0.00000 0.00000 0.00010 0.00004 0.00011 0.00025
61 Block 4 0.00000 0.00000 0.00000 0.00000 0.00000 0.00006 0.00002 0.00006 0.00014
62 Block 5 0.00000 0.00000 0.00000 0.00000 0.00000 0.00003 0.00001 0.00004 0.00008
63 Block 6 0.00000 0.00000 0.00000 0.00000 0.00000 0.00002 0.00001 0.00002 0.00005
64 Intentionally blank
65 33 0.00000 0.00000 0.00000 0.00000 0.00000 0.00001 0.00000 0.00001 0.00002
66
67 Sources:
68 Direct Inputs 12-13 PGA 12-13 PGA 12-13 PGA
69
70 Equal ¢ per therm Column AB
71 Equal % of margin Column X Column AA Column AD
OPUC Advice 13-17 Exhibit A Supporting Materials.xlsx 8/29/2013 4:04 PMP1 Net Increments
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
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NW Natural
Rates & Regulatory Affairs
2013-14 PGA: August Filing
Calculation of Increments Allocated on the EQUAL PERCENTAGE OF MARGIN BASISALL VOLUMES IN THERMS
1 Billing WACOG & Temps from
2 Oregon PGA Rate from Demand from Temporary
3 Volumes page, Rates page, Rates page, Increment page, MARGIN Volumetric Customer
4 Column F Column A Column B+C+D* Column A Rate Margin Charge Customers
5 E=B-C-D
6 Schedule Block A B C D E F = E * A G H
7 Intentionally blank
8 Intentionally blank
9 2R 345,986,258 0.97604 0.53760 0.02683 0.41161 142,411,403 $8.00 555,784
10 3C Firm Sales 160,594,802 0.86302 0.53760 (0.00456) 0.32998 52,993,073 $15.00 56,183
11 Intentionally blank
12 3I Firm Sales 4,603,863 0.86948 0.53760 0.00628 0.32560 1,499,018 $15.00 296
13 Intentionally blank
14 27 Dry Out 316,316 0.84631 0.53760 0.00000 0.30871 97,650 $6.00 1,138
15 Intentionally blank
16 31C Firm Sales Block 1 25,514,212 0.58396 0.39275 (0.00418) 0.19539 10,935,510 $325.00 1,156
17 Block 2 33,376,084 0.56694 0.39275 (0.00409) 0.17828
18 31C Firm Trans Block 1 339,634 0.17470 0.00000 0.00919 0.16551 124,251 $575.00 15
19 Block 2 450,526 0.16028 0.00000 0.00926 0.15102
20 Intentionally blank
21 Intentionally blank
22 31I Firm Sales Block 1 4,531,677 0.55721 0.39275 0.00665 0.15781 2,267,503 $325.00 201
23 Block 2 10,886,875 0.54207 0.39275 0.00673 0.14259
24 31I Firm Trans Block 1 175,761 0.15543 0.00000 (0.00068) 0.15611 151,545 $575.00 9
25 Block 2 879,756 0.14046 0.00000 (0.00061) 0.14107
26 Intentionally blank
27 Intentionally blank
28 32C Firm Sales Block 1 7,200,325 0.49011 0.39275 0.00688 0.09048 1,107,260 $675.00 119
29 Block 2 5,057,888 0.47663 0.39275 0.00696 0.07692
30 Block 3 1,121,673 0.45415 0.39275 0.00709 0.05431
31 Block 4 183,141 0.43166 0.39275 0.00722 0.03169
32 Block 5 0 0.41817 0.39275 0.00730 0.01812
33 Block 6 0 0.40916 0.39275 0.00735 0.00906
34 32I Firm Sales Block 1 4,362,043 0.49051 0.39275 0.00696 0.09080 892,759 $675.00 48
35 Block 2 5,138,786 0.47695 0.39275 0.00702 0.07718
36 Block 3 1,674,458 0.45438 0.39275 0.00714 0.05449
37 Block 4 277,850 0.43180 0.39275 0.00726 0.03179
38 Block 5 1 0.41824 0.39275 0.00733 0.01816
39 Block 6 0 0.40924 0.39275 0.00737 0.00912
40 32 Firm Trans Block 1 10,284,238 0.09229 0.00000 (0.00040) 0.09269 3,266,612 $925.00 103
41 Block 2 14,038,829 0.07842 0.00000 (0.00034) 0.07876
42 Block 3 8,164,269 0.05539 0.00000 (0.00023) 0.05562
43 Block 4 14,589,342 0.03232 0.00000 (0.00013) 0.03245
44 Block 5 14,980,259 0.01848 0.00000 (0.00006) 0.01854
45 Block 6 259,450 0.00928 0.00000 (0.00002) 0.00930
46 32C Interr Sales Block 1 6,290,942 0.49610 0.39275 0.00923 0.09412 1,689,730 $675.00 63
47 Block 2 8,284,738 0.48205 0.39275 0.00929 0.08001
48 Block 3 4,323,780 0.45862 0.39275 0.00940 0.05647
49 Block 4 5,677,051 0.43522 0.39275 0.00952 0.03295
50 Block 5 188,317 0.42114 0.39275 0.00958 0.01881
51 Block 6 0 0.41182 0.39275 0.00963 0.00944
52 32I Interr Sales Block 1 7,497,760 0.49616 0.39275 0.00926 0.09415 2,198,495 $675.00 73
53 Block 2 9,553,188 0.48210 0.39275 0.00932 0.08003
54 Block 3 5,054,254 0.45867 0.39275 0.00943 0.05649
55 Block 4 11,103,963 0.43525 0.39275 0.00954 0.03296
56 Block 5 4,064,661 0.42118 0.39275 0.00960 0.01883
57 Block 6 0 0.41183 0.39275 0.00965 0.00943
58 32 Interr Trans Block 1 9,349,524 0.09389 0.00000 (0.00037) 0.09426 5,858,865 $925.00 90
59 Block 2 16,390,454 0.07981 0.00000 (0.00031) 0.08012
60 Block 3 11,821,897 0.05635 0.00000 (0.00022) 0.05657
61 Block 4 30,348,048 0.03288 0.00000 (0.00012) 0.03300
62 Block 5 61,577,844 0.01880 0.00000 (0.00006) 0.01886
63 Block 6 88,123,517 0.00943 0.00000 (0.00002) 0.00945
64 Intentionally blank
65 33 0 0.00539 0.00000 (0.00002) 0.00541 0 $38,000.00 0
66
67 TOTALS 954,638,253 225,493,674
6869 Sources for line 2 above:
70 Inputs page
7172 Tariff Schedules
73 Rate Adjustment Schedule
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
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NW Natural
Rates & Regulatory Affairs
2013-14 PGA: August Filing
Calculation of Increments Allocated on the EQUAL CENT PER THERM BASISALL VOLUMES IN THERMS
1 SIP: Bare Steel - 70%
2 Oregon PGA Proposed Amount: 1,085,924 PERMANENT Increment
3 Volumes page, Revenue Sensitive Multiplier: N/A rev sensitive factor is built in
4 Column F Amount to Amortize: 1,085,924 to residential & commercial
5 Multiplier Volumes Increment
6 Schedule Block A Z AA AB
7 Intentionally blank
8 Intentionally blank
9 2R 345,986,258 1.0 345,986,258 0.00190
10 3C Firm Sales 160,594,802 1.0 160,594,802 0.00190
11 Intentionally blank
12 3I Firm Sales 4,603,863 1.0 4,603,863 0.00190
13 Intentionally blank
14 27 Dry Out 316,316 1.0 316,316 0.00190
15 Intentionally blank
16 31C Firm Sales Block 1 25,514,212 1.0 25,514,212 0.00190
17 Block 2 33,376,084 1.0 33,376,084 0.00190
18 31C Firm Trans Block 1 339,634 1.0 339,634 0.00190
19 Block 2 450,526 1.0 450,526 0.00190
20 Intentionally blank
21 Intentionally blank
22 31I Firm Sales Block 1 4,531,677 0.0 0 0.00000
23 Block 2 10,886,875 0.0 0 0.00000
24 31I Firm Trans Block 1 175,761 0.0 0 0.00000
25 Block 2 879,756 0.0 0 0.00000
26 Intentionally blank
27 Intentionally blank
28 32C Firm Sales Block 1 7,200,325 0.0 0 0.00000
29 Block 2 5,057,888 0.0 0 0.00000
30 Block 3 1,121,673 0.0 0 0.00000
31 Block 4 183,141 0.0 0 0.00000
32 Block 5 0 0.0 0 0.00000
33 Block 6 0 0.0 0 0.00000
34 32I Firm Sales Block 1 4,362,043 0.0 0 0.00000
35 Block 2 5,138,786 0.0 0 0.00000
36 Block 3 1,674,458 0.0 0 0.00000
37 Block 4 277,850 0.0 0 0.00000
38 Block 5 1 0.0 0 0.00000
39 Block 6 0 0.0 0 0.00000
40 32 Firm Trans Block 1 10,284,238 0.0 0 0.00000
41 Block 2 14,038,829 0.0 0 0.00000
42 Block 3 8,164,269 0.0 0 0.00000
43 Block 4 14,589,342 0.0 0 0.00000
44 Block 5 14,980,259 0.0 0 0.00000
45 Block 6 259,450 0.0 0 0.00000
46 32C Interr Sales Block 1 6,290,942 0.0 0 0.00000
47 Block 2 8,284,738 0.0 0 0.00000
48 Block 3 4,323,780 0.0 0 0.00000
49 Block 4 5,677,051 0.0 0 0.00000
50 Block 5 188,317 0.0 0 0.00000
51 Block 6 0 0.0 0 0.00000
52 32I Interr Sales Block 1 7,497,760 0.0 0 0.00000
53 Block 2 9,553,188 0.0 0 0.00000
54 Block 3 5,054,254 0.0 0 0.00000
55 Block 4 11,103,963 0.0 0 0.00000
56 Block 5 4,064,661 0.0 0 0.00000
57 Block 6 0 0.0 0 0.00000
58 32 Interr Trans Block 1 9,349,524 0.0 0 0.00000
59 Block 2 16,390,454 0.0 0 0.00000
60 Block 3 11,821,897 0.0 0 0.00000
61 Block 4 30,348,048 0.0 0 0.00000
62 Block 5 61,577,844 0.0 0 0.00000
63 Block 6 88,123,517 0.0 0 0.00000
64 Intentionally blank
65 33 0 0.0 0 0.00000
66
67 TOTALS 954,638,253 571,181,694 0.00190
6869 Sources for line 2 above:
70 Inputs page Line 33
7172 Tariff Schedules
73 Rate Adjustment Schedule Sched 177 A
OPUC Advice 13-17 Exhibit A Supporting Materials.xlsx 8/29/2013 4:04 PMP3 Equal ¢ per therm
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
Page 3 of 8
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NW Natural
System Integrity Program Cost Tracking
Cost of Service Summary - PGA 2013-14
in Thousands of Dollars
Tracker Year
Cost of Service1 Bare Steel Program2
3 Activity Ended October 31, 2013 $1,5514
5 Activity Ended October 31, 2014 06
7 Total Bare Steel Program $1,551
8
9
10 Transmission Integrity Management Program ("TIMP")11
12 Activity Ended October 31, 2013 $50313
14 Activity Ended October 31, 2014 015
16 Total Transmission Integrity Management Program $503
17
18
19 Distribution Integrity Management Program ("DIMP")20
21 Activity Ended October 31, 2013 $18222
23 Activity Ended October 31, 2014 024
25 Total Distribution Integrity Management Program $182
26
27
28 GRAND TOTAL ALL PROGRAMS $2,236
29
30
31 Reflects Actuals through June 30, 2013
OPUC Advice 13-17 Exhibit A Supporting Materials.xlsx 8/29/2013 4:04 PM
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
Page 4 of 8
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NW Natural
Rates & Regulatory Affairs
Determination of Cost of Service ($000)
Bare Steel 2012-13 Tracking
Input Capital Costs and Rates from UG 221
Cost of Capital Weighted
% of Capital Cost Cost
Debt 50.00% 6.056% 3.028%
Preferred Equity 0.00% 0.000% 0.000%
Common Equity 50.00% 9.500% 4.750%
100.00% 7.778%
State Tax Rate 7.60%
Federal Tax Rate 35.00%
Revenue Sensitive Rate 2.916%
Depreciation Rate 2.855%
Property Tax Rate 1.661%
combined tax rate 39.94%
combined after tax rate 60.06%
After tax cost of capital 6.57%
Bonus Tax Depreciation (1 = No, 2 = yes 50%, 3 = yes 100%) 2
Investment $10,493
Year 1
Depreciation 300
Property Taxes 189
Taxes on Equity Return
State 56
Federal 238
Total Taxes 294
Return on Rate Base
Debt 282
Preferred Equity 0
Common Equity 443
Total Return 725
Subtotal Cost of Service 1,507
Revenue Sensitive Items 44
Total Cost of Service $1,551
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
Page 5 of 8
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NW Natural
Rates & Regulatory Affairs
Determination of Cost of Service ($000)
TIMP 2012-13 Tracking
Input Capital Costs and Rates from UG 221
Cost of Capital Weighted
% of Capital Cost Cost
Debt 50.00% 6.056% 3.028%
Preferred Equity 0.00% 0.000% 0.000%
Common Equity 50.00% 9.500% 4.750%
100.00% 7.778%
State Tax Rate 7.60%
Federal Tax Rate 35.00%
Revenue Sensitive Rate 2.916%
Depreciation Rate 2.855%
Property Tax Rate 1.661%
combined tax rate 39.94%
combined after tax rate 60.06%
After tax cost of capital 6.57%
Bonus Tax Depreciation (1 = No, 2 = yes 50%, 3 = yes 100%) 2
Investment $3,401
Year 1
Depreciation 97
Property Taxes 61
Taxes on Equity Return
State 18
Federal 77
Total Taxes 95
Return on Rate Base
Debt 91
Preferred Equity 0
Common Equity 143
Total Return 235
Subtotal Cost of Service 489
Revenue Sensitive Items 14
Total Cost of Service $503
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
Page 6 of 8
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NW Natural Period Ending
Rates & Regulatory Affairs Month day, year
Determination of Cost of Service ($000) Reflecting final UG 221 results
DIMP 2012-13 Tracking
Input Capital Costs and Rates from UG 221
Cost of Capital Weighted
% of Capital Cost Cost
Debt 50.00% 6.056% 3.028%
Preferred Equity 0.00% 0.000% 0.000%
Common Equity 50.00% 9.500% 4.750%
100.00% 7.778%
State Tax Rate 7.60%
Federal Tax Rate 35.00%
Revenue Sensitive Rate 2.916%
Depreciation Rate 2.855%
Property Tax Rate 1.661%
combined tax rate 39.94%
combined after tax rate 60.06%
After tax cost of capital 6.57%
Bonus Tax Depreciation (1 = No, 2 = yes 50%, 3 = yes 100%) 2
Investment $1,232
Year 1
Depreciation 35
Property Taxes 22
Taxes on Equity Return
State 7
Federal 28
Total Taxes 35
Return on Rate Base
Debt 33
Preferred Equity 0
Common Equity 52
Total Return 85
Subtotal Cost of Service 177
Revenue Sensitive Items 5
Total Cost of Service $182
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
Page 7 of 8
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NW Natural
Rates & Regulatory Affairs
2013-2014 PGA Filing - Oregon: August Filing
PGA Effects on Revenue
Tariff Advice 13-17: SIP
Including
Revenue Sensitve
1 Amount
2
3 Permanent Rate Adjustments
4
5 SIP Program Costs
6 Addition of Proposed Bare Steel Program Costs 1,551,321
7
8 Removal of Current Bare Steel Program Costs 0
9
10 Addition of Proposed Integrity Management Program Costs 502,755
11
12 Removal of Current Integrity Management Program Costs 0
13
14 Addition of Proposed Distribution Integrity Program Costs 182,126
15
16 Removal of Current Distribution Integrity Program Costs 0
17
18
19 TOTAL OF ALL COMPONENTS OF ALL RATE CHANGES $2,236,202
20
21
22 2012 Oregon Earnings Test Normalized Total Revenues $664,723,000
23
24 Effect of this filing, as a percentage change (line 19 ÷ line 22) 0.34%
Exhibit A - Supporting Materials NWN OPUC Advice No. 13-17/UG___
Page 8 of 8