electric auto silicon valley - e9 pg&e rates
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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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
Page 61Source PA Consulting – November 15, 2011
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
Our PG&E “Relationship” & EV Purchase
November 2010 – November 2011 Kilowatts Used / Roof not viable for Solar
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
Our PG&E Electric Bills
November 2010 – November 2011 Kilowatts Used / Terrible Roof for Solar
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
PG&E E-9A Current TOU, Tiered Rate
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
PG&E E-9B Current TOU, Tiered Rate
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
PUC July 2011 PG&E Directive
PG&E Review Only E-9B Rates Propose Flat Rate
E-9B = Dedicated Meter for EV + Household Meter
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
Southern California Edison EV Rates June 2011
E-9A
E-9B
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
Source: Joint IOU Work Groups 11/2011
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 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
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... ...
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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 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... ...
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... ...
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 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.
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... ...
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... ...
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... ...
OpenEV
PU1
FSubB2
FSubA3
FSubA2
FSubA1
FSubC1
FSubB1
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 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 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
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... ...
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
Project Green On Ramp Paul StithSUM – Sustainable Unlimited Mobility December 10, 2011
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... ...
Submeter#:MSub1MasterMeter#:MM2interval kWh... ...2011/9/108:00-8:15AM 02011/9/108:15-8:30AM 3.12011/9/108:30-8:45AM 4.22011/9/108:45-9:00AM 4.2... ...2011/9/1012:15-12:30PM 3.12011/9/1012:30-12:45PM 0... ...
Submeter#:MSub1MasterMeter#:MM3interval kWh... ...2011/9/128:00-8:15AM 02011/9/128:15-8:30AM 2.62011/9/128:30-8:45AM 4.22011/9/128:45-9:00AM 4.2... ...2011/9/1212:15-12:30PM 2.62011/9/1212:30-12:45PM 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
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