electric auto silicon valley - e9 pg&e rates

Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011

PG&E E-9A/B Rate UpdateSub-Metering Protocol Development

Paul StithPrincipal Consultant – SUM

Vice President, EAA Silicon Valley


Page 61Source PA Consulting – November 15, 2011


Our PG&E “Relationship” & EV Purchase

November 2010 – November 2011 Kilowatts Used / Roof not viable for Solar

Paul Stith


Our PG&E Electric Bills

November 2010 – November 2011 Kilowatts Used / Terrible Roof for Solar

Paul Stith


PG&E E-9A / E-9B “Experimental” EV Rates

Introduced over a decade ago, only allowed for owners of registered Electric Vehicles - Time of Use (TOU), Tiered Rates

E-9A = Whole House, One Meter

E-9B = Dedicated Meter for EV + Household Meter

E-9B Allows you to receive TWO baseline allocationsHousehold can be on any other rate plan

< 350 PG&E Customers

< 40 PG&E Customers


PG&E E-9A Current TOU, Tiered Rate


PG&E E-9B Current TOU, Tiered Rate


PUC July 2011 PG&E Directive

PG&E Review Only E-9B Rates Propose Flat Rate

E-9B = Dedicated Meter for EV + Household Meter


Southern California Edison EV Rates June 2011

E-9A

E-9B


PUC July 2011 PG&E Directive Results

PG&E Proposed Flat TOU Rates for E-9A AND E-9B Raised Base Rate from ~5 Cents to ~11 Cents

80% of Existing E-9A/B rate payers will see higher bills Some rate payers will be better on standard E1 Plan High use accounts, especially with high 24x7 use may

actually be better off with proposed rates


PG&E E-9A & E-9B Rate Proposal- Challenges and Responses -

Activities Letter Writing Campaign PG&E Response (Can’t sell below cost) Letter Writing Campaign – Version 2 PG&E Response???

Action Items Full rate analysis of E1 vs. E9 specific cases Request rate freeze until scheduled 2013-2014 analysis Analyze other Time of Use Applications & Rates, Marginal Cost Off-Peak Examine EVSE Service Provider Rates Legislative Support for Residential Subsidies Support Sub-Metering Technologies


PUC July 2011 Directive – All IOUs

PG&E, SCE & San Diego Power & GasRequired to develop a Sub-Metering Protocol

Isolate EV Charging Load from Primary Load Sub-Meter can not be owned by Utility

Simplify the EV service offerings by segregating use Application-specific utility rates to drive charging behavior Lower the cost to access application-specific rates Expand workplace and multi-family charging

Input from EVSE Providers, Service Providers, Auto Makers & Consumers

MM1

PU1

FSubA1


Source: Joint IOU Work Groups 11/2011


DES

CRIP

TIO

N

Phase 2Design / Develop

Phase 3Build Interim Solution

Phase 1Define / Plan

Phase 4 Build Scalable Solution

Short-Term Mid-Term Long-Term

Proposed Joint Utility Submetering Protocol Development Plan Description And ActivitiesAC

TIVI

TIES

• Develop the California Submetering Protocol

Business requirements and specs for utilities, customers and 3rd party meter service providers

Technical, security, privacy requirements, specs, and standards aligned with national standards

Architectural design for end-to-end systems (including back office integration)

Implementation strategy and plan, schedule, tasks, and deliverables

• Submeters for IOU subtractive billing are owned by customers or 3rd parties

• Submeter data for IOU subtractive billing to be provided according to protocol (includes submeter ID, premise ID, and date/time stamped interval usage)

• Utilities execute manual, small scale subtractive billing of EV charging loads

• Full utility cost recovery in place for upgrades to IT/billing systems and related costs

• Implement a solution - build, test, and refine the necessary processes, systems, and system interfaces

• Pursue development of national standards for submeters and subtractive billing

• Enable 3-way handshake among the utility, customer, and 3rd party meter service provider

• Develop certification process for 3rd party devices, systems, processes

• Develop and carry out customer information campaign

• Upgrade utility systems to handle automated, full scale subtractive billing

• Leverage utility investments in Smart Grid technologies

• National standards are completed and implemented by this time

• IOU customers may have the choice of residential and several EV rates

• IOU customers can continue to use the utility’s single whole house meter, which includes EV charging and billing

• IOU customers can add a parallel meter service panel for a dedicated utility-owned and read parallel meter for EV charging and billing

• IOU customers can install a submeter, either owned by the customer or a 3rd party, and receive usage data from those (non-utility) sources for energy monitoring

• Define the CA Submetering Protocol Roadmap Goals, objectives, scope, guidelines List of Issues and/or Requirements

and Preliminary Recommendations Key tasks or activities and timing for

each Responsible organizations and

individuals for each • Complete and submit the Submetering

Roadmap Report

• National Standards are in place

• Submeters for subtractive billing are owned by customers or 3rd parties

• Submeter data for IOU subtractive billing to be provided according to protocol

• Utilities execute automated, full scale subtractive billing

• Full utility cost recovery in place for upgrades to IT/billing systems and related costs

CUSTOMER OR 3RD PARTY-OWNED SUBMETERING IS AVAILABLE TO CUSTOMERS FOR NON-BILLING

PURPOSESCUSTOMER OR 3RD PARTY-OWNED SUBMETERING IS AVAILABLE TO CUSTOMERS FOR BILLING PURPOSES

14Source: Joint IOU Work Groups 11/2011


CPUC Submetering Protocol Timeline

10/27/11 1/3/2012 *

7/31/2012

Public workshop

with external stakeholders

Submeter protocol roadmap

report

Tier 2 advice letter &

Protocol Report

9/3/2012

9/15/11IOU joint

meetings with CPUC Energy

Division, Automakers,

EVSE Manufacturers,

and EVSPs

11/14/11Workshop

report

Tariff sheet changes to implement

submetering protocol into tariff rules

1/2013

ROADMAP DEVELOPMENT

PROTOCOL DEVELOPMENT

Decision Closing

Proceedings

TARIFF DEVELOPMENT

15

AF

V O

IR P

has

e 2

Dec

isio

n 7

.25.

2011

* Potential extension to be evaluated

Source: Joint IOU Work Groups 11/2011


Submeter#:FSubA1MasterMeter#:MM1interval kWh... ...2011/9/98:00-8:15AM 02011/9/98:15-8:30AM 3.512011/9/98:30-8:45AM 5.52011/9/98:45-9:00AM 5.5... ...2011/9/912:15-12:30PM 5.52011/9/912:30-12:45PM 0... ...

Utility SystemsStagin

g Server

Back Office

AMI

FSubA

DMA

Premises 1

16

MM1

PU1

FSubA1

OpenEV

ElectricityUsage DataBillingMaster Meter UsageSubmeter UsagePremises Usage


OpenEV

Use Case 1: Fixed SubmeterUtility = Electric Commodity Provider (One to One EVSP)Customer of Record for the Fixed Submeter is the Premise Owner

Implications– Assumes 3rd Party sends data from their Data Management Agent

(DMA) to the utility via the OpenEV interface– Requires 3-way association among customer, 3rd party, and utility

prior to accurate subtractive billing (i.e. no ad-hoc associations)– Submeter adheres to the same certification and requirements as a

utility master meter based on national standards– OpenEV standard must be established, and 3rd Party DMA is

certified to it– AMI network is not used to transport submeter data





Utility Systems

Staging Server

Back Office

Use Case 2: Fixed SubmeterUtility = Electric Commodity Provider (One to Many EVSPs)

Customer of Record for the Fixed Submeter is the Premise Owner

AMI

Premises 1

17

MM1

FSubB

DMA

FSubC

DMA

OpenEV

OpenEV

FSubA

DMA

ElectricityUsage DataBillingMaster Meter UsageSubmeter UsageSubmeter UsageSubmeter UsagePremises Usage

Example: shopping center garage with multiple vendors with multiple submetered charging points.NOTE: Submeter data is not aggregated.




OpenEV

PU1

FSubB2

FSubA3

FSubA2

FSubA1

FSubC1

FSubB1



Utility Systems

Staging Server

Back Office

OpenEV

FSubA

DMA

Premises 1

PU1

FSubA1

ElectricityUsage DataBillingMaster Meter UsageSubmeter UsagePremises Usage

Use Case 3: Fixed SubmeterEVSP = Resells Electricity to Consumer (One to One)Customer of Record for the Fixed Submeter is EVSP

AMI

MM1


Implications– This arrangement is qualitatively the same as Use Case 1– Both the premise owner and EVSP are direct tariff customers

of the utility (load serving entity)– Customer of record for the fixed submeter is the EVSP– Utility is charging 3rd parties for their usage, and 3rd parties

may recoup their costs in addition to any value-added service cost

18

Could include value-added

services


Premises Identifier

Premises Identifier

Premises Identifier

MM1

MSubAMM2

MM3

Submeter#:MSub1MasterMeter#:MM1interval kWh... ...2011/9/98:00-8:15AM 02011/9/98:15-8:30AM 3.512011/9/98:30-8:45AM 5.52011/9/98:45-9:00AM 5.5... ...2011/9/912:15-12:30PM 5.52011/9/912:30-12:45PM 0... ...



Friday, 2011/9/9

Saturday, 2011/9/10

Monday, 2011/9/12

Association

EV charges at different Premises each day

OpenEV

19

Mobile SubmetersEVSP = Resells Electricity to Consumer

Customer of Record for Mobile Submeter can be Customer or EVSP


PG&E E-9A/B Rate UpdateSub-Metering Protocol Development

Paul StithPrincipal Consultant – SUM

Vice President, EAA Silicon Valley

[email protected]

electric auto silicon valley - e9 pg&e rates

Documents

b rates

pge customers e

tiered rates e

flat rate e

b component rates rates

b total energy rates

rate planproject green

b wintertotal rates