January 16, ADVICE 3640-E-A (Southern California Edison Company - U 338-E) ADVICE 5119-E-A (Pacific Gas and Electric Company U 39 E)

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5 Russell G. Worden Managing Director, State Regulatory Operations January 16, 2018 ADVICE 3640-E-A (Southern California Edison Company - U 338-E) ADVICE 5119-E-A (Pacific Gas and Electric Company U 39 E) ADVICE 3103-E-A (San Diego Gas & Electric Company U 902 E) PUBLIC UTILITIES COMMISSION OF THE STATE OF CALIFORNIA ENERGY DIVISION SUBJECT: Supplement to Advice 3640-E, Update to Community Choice Aggregate and Energy Service Provider Load Data and Utility Investment and Procurement Information Southern California Edison Company (SCE), Pacific Gas and Electric Company (PG&E), and San Diego Gas & Electric Company (SDG&E) (collectively, the Joint Utilities) hereby submit their corrected Update to Community Choice Aggregate and Energy Service Provider Load Data and Utility Investment and Procurement Information to bring their respective advice letters into compliance with Decision (D.) PURPOSE The purpose of this supplemental advice filing is to provide corrections to the Joint Utilities proposed Update to Community Choice Aggregate and Energy Service Provider Load Data and Utility Investment and Procurement Information. These changes are made in accordance with Resolution E-4892, which directs the Joint Utilities to make additional changes to their August 1, 2017 advice letter compliance filing through the filing of a supplemental advice letter. This advice filing supplements,in part, to Advice Letters 5119-E (PG&E), 3640-E (SCE) and 3103-E (SDG&E) to make updates and corrections, as identified in Resolution E P.O. Box Rush Street Rosemead, California (626) Fax (626)

6 ADVICE 3640-E-A (U 338-E) January 16, 2018 BACKGROUND On August 1, 2017 the Joint Utilities filed AL 5119-E et al., which proposed updates to Tables 3-6, originally included in D AL 5119-E et al., was timely protested by the Alliance for Retail Energy Markets and Direct Access Customer Coaliton (together, AReM/DACC ) and Marin Clean Energy, City of Lancater, Sonoma Clean Power, and Silicon Valley Clean Energy (collectively, CCA Parties ) on August 21, The Joint IOUs timely filed a reply to protests on August 28, Both AReM/DACC and the CCA Parties urged the Commission to reject AL 5119-E et al., noting inconsistencies between data sources among the Joint Utilities on Table 4, and outdated load data on Table 5 and Table 6 that did not include the most recent CCA load data. In reply, the Joint Utilities agreed to update thetables accordingly. Both the CCA Parties and AReM/DACC further argued that the Joint Utilities failed to calculate and apply the automatic limiter, as required by Ordering Paragraph 6 of D The Joint Utilities described a difference in interpretation of the automatic limiter application, and requested clarification from the Commission on how to apply the limiter. In Resolution E-4892, the Commission provided clarification that the automatic limiter should apply in the aggregate. The Commission s Resolution E-4892 requires the IOUs to submit a supplemental Advice Letter to make correction to Tables 4 through 6 as follows: Table 4 must be updated as proposed by AReM/DACC, and as agreed to by SCE and SDG&E. Table 5 must be updated with the most current CCA and ESP load data available to the IOUs at the time that the filing is made. All active CCAs and ESPs must be included. No specific data source is recommended by the Commission; the only requirement is that the data be the most current. Table 6 must be updated with the latest ESP information, as recommended by AReM/DACC and agreed to by the IOUs. Table 6 must also be updated with the latest CCA information. After updating the data and calculations in the Tables, the Joint Utilities are required to apply the automatic limiter as and where it should be applied, to ESP and CCA procurement obligations, in the aggregate.

7 ADVICE 3640-E-A (U 338-E) January 16, 2018 Updated Tables Table 3: ENERGY STORAGE COST RECOVERY (Data as of January 2018) 1 SERVICE TERRITORY PG&E SCE SDG&E Storage MW recovered or approved for recovery via non-bypassable charges (to date) 2 Future (known additional) MW expected to None known be recovered via CAM Total MW expected to be recovered via non-bypassable charges Though not required as part of the Supplemental Advice Letter filing in Resolution E-4892, SCE provides an update to its Energy Storage Cost Recovery Data to reflect the rejection of the 0.5 MW Moorpark project, which was previously included in Table 3 of the August 1, 2017 AL Filing. 2 This information reflects Cost Allocation Mechanism (CAM) and distribution charge recovery, and only those contracts that have been approved for recovery to date. 3 6 MW via distribution charge + 10 MW of customer-sited SGIP/PLS projects (R : Motion of PG&E to Further Update Information in its January 4, 2016 Report Regarding Energy Storage System Procurement Targets and Policies - July 7, 2017), and 0.5 MW for Browns Valley (A ; D ) MW via distribution charge MW of SGIP/PLS (does not account for DA / CCA counting rule application for SGIP as per D ) + 22 MW of Aliso Canyon Energy Storage (ACES) projects (Resolution E MW of original 27 MW authorization was cancelled) MW in West LA Basin via SCE 2013 LCR RFO to replace SONGs capacity (D ) MW via distribution rates MW of SGIP/PLS MW of ACES storage projects (Resolution E-4798) MW ACES Design Build Transfer project (Resolution E-4791) + Preferred Resources Pilot 2-60 MW (A ) + 20 MW ACES EGTs (A ) 7 See: A

8 ADVICE 3640-E-A (U 338-E) January 16, 2018 Table 4: DIRECT ACCESS STORAGE PROCUREMENT COST OBLIGATIONS (Data as of June 2017) -- CORRECTED 8 SERVICE TERRITORY PG&E SCE SDG&E Applicable ESP load (GWh) 9 9,657 11, ,400 DA MW share of non-bypassable charges 11 1% ESP procurement obligation (GWh) % ESP procurement obligation (MW) Includes changes reflected in Resolution E June 15, 2017 data, available at Supplemental Direct Access Implementation Activities Report Statewide Summary June 15, Corrected to reflect AReM/DACC revisions from protest filings on August 21, 2017, in accordance with OP 2 of Res. E Direct Access (DA) ESPs are responsible for non-bypassable charges based on load share for CAM and distribution rates. This does not include PCIA for storage. ESPs comprise 13.0 percent of load share, based on the latest Direct Access Implementation Activities Report, published June 15, 2017, accessible at: 12 Corrected to reflect AReM/DACC revisions from protest filings on August 21, 2017, in accordance with OP 2 of Res. E Assumes 64 percent capacity factor (CF) for ESPs and CCAs as referenced in D , FN 35. MW = 1000*GWh/(CF/8760)

9 ADVICE 3640-E-A (U 338-E) January 16, 2018 Table 5: COMMUNITY CHOICE AGGREGATORS STORAGE PROCUREMENT COST OBLIGATIONS (Data as of January 2018) SERVICE TERRITORY PG&E SCE SDG&E Applicable CCA load (GWh) 14 13, CCA MW share of non-bypassable charges 17 1% CCA procurement obligation (GWh) % CCA procurement obligation (MW) Table 6: COMPARISON OF UTILITY, DIRECT ACCESS, AND COMMUNITY CHOICE AGGREGATORS STORAGE PROCUREMENT COST OBLIGATIONS (Data as of June 2017) CORRECTED AND UPDATED SERVICE TERRITORY Storage obligation as % of total 2020 load forecast 18 - Storage Target of 1325 MW PG&E SCE SDG&E 580 MW ~ 2.9% MW ~2.8% MW ~3.7% CCA load forecast data available at: Corrected LSE and BA Tables Mid Baseline Mid AAEE ERRA Forecast, Prepared Testimony (Public Version), Table See: California Community Choice Asssocitation Presentation (Slide 18): Includes: Lancaster, Apple Valley and Pico Rivera CCA GWh totals - Note that SCE is using 2017 data included by CCAs, not forecasted data. The updated 2017 IEPR will include updated CCA data, which the IOUs will incorporate into their next Advice Letter filing. 17 Currently active CCAs comprise 3 percent of forecasted 2020 load in PG&E territory; 0.5% of forecasted 2020 load in SCE territory. Percentages are derived from California Energy Demand Update Forecast, California Energy Commission, accessible at: load assumptions: PG&E 21,597 MWs in 2020; SCE 22,296 MWs in 2020; SDG&E 4,455 MWs in Source: California Energy Commission Draft Staff Report. Docket 16-IEPR. December 5, PG&E Load Updated 19,762 MW. Load less increased CCA load = 21,597-1,835 MW. 20 SCE Load Updated 21,043 MW. Source: IEPR LSE and BA Tables Mid Baseline Mid AAEE Form 1.5b = SCE TAC area load, less CDRW and Pasadena load

10 ADVICE 3640-E-A (U 338-E) January 16, 2018 Storage obligations as % total of 2020 load forecast Storage Target of 1825 MW 21 Automatic Limiter Adjustment ESP Current Share: 1% procurement obligation + nonbypassable charge (MW / % of load) CCA Current Share: 1% procurement obligation + nonbypassable charge (MW / % of load) 746 MW ~ 3.8% 19 MW ~ 1.1 % 27.4 MW ~ 1.1 % 746 MW ~3.5% 331 MW ~7.4% Unadjusted 22 Adjusted 23 Unadjusted 24 Adjusted MW 26 ~3.7% 4 MW ~2.1% 56 MW ~2.8% 24 MW ~4.0% 22.2MW ~3.7% 0 0 EXPLANATION OF PROPOSED CHANGES Table 3 is included for reference, and includes a minor change, which removes the 0.5 MW of energy storage procurement from Moorpark, which was included in the original Table 3 for D , but which was denied by the Commission. Table 3 was not protested. and reflects the most current publicly available Energy Storage Cost Recovery Data. Table 4 has been updated to reflect the changes proposed by AReM/DACC, as directed by the Commission in Resolution E-4892 in Ordering Paragraph 2. Table 5 has been updated to reflect the most recent, publicly available CCA and ESP load data, as fo the date of this filing. The Energy Commission will soon be releasing an updated, 2017 California Energy Demand Forecast as part of the Integrated Energy Policy Report (IEPR) proceeding in January 2018, which will include updated CCA and ESP load, including updated forecast data. The Joint Utilities will reflect this data in their 21 Includes procurement under AB ESP / CCA Current Share, without application of Automatic Limiter 23 ESP / CCA Current Share, with application of Automatic Limiter 24 ESP / CCA Current Share, without application of Automatic Limiter 25 ESP / CCA Current Share, with application of Automatic Limiter 26 Corrected to reflect AReM/DACC revisions from protest filings on August 21, 2017, in accordance with OP 2 of Res. E-4892.

11 ADVICE 3640-E-A (U 338-E) January 16, 2018 next Advice Letter filing. As of the date of this filing, the 2017 IEPR has not been released. As such, the Joint Utilities reflect other publicly available sources of data, as noted in the footnotes of Table 5. Table 6 has been updated with the latest ESP information, as recommended by AReM/DACC, and reflects the latest CCA information available to the Joint Utilities. For PG&E, the CCA and ESP procurement obligation does not exceed the storage obligation of PG&E; therefore, the automatic limiter has not been triggered. For SCE, because the ESP procurement obligations exceed SCE s storage obligation as a percentage of load of SCE (i.e., greater than 2.8% - relative to Storage Target of 580 MW), the automatic limiter has been triggered for SCE for the ESP current share. As such, SCE has applied the automatic limiter to the ESP share in Table 6. SCE shows both the unadjusted MW / % (i.e., before application of limiter), and adjusted (i.e., after application of limiter) values for comparison purposes. For SDG&E, because the ESP procurement obligations for SDG&E exceed SDG&E s storage obligation (i.e., ESP procurement obligation is greater than 4.0% - relative to Storage Target of 165 MW), the automatic limiter has been triggered for SDG&E for the ESP current share. As such, SDG&E has applied the automatic limiter to the ESP share in Table 6. SDG&E shows both the unadjusted MW / % (i.e., before application of limiter), and adjusted (i.e., after application of limiter) values for comparison purposes. No cost information is required for this advice filing. This advice filing will not increase any rate or charge, cause the withdrawal of service, or conflict with any other schedule or rule. TIER DESIGNATION Pursuant to General Order (GO) 96-B, Energy Industry Rule 5.1(1), this advice letter is submitted with a Tier 1 designation which is the same Tier designation as the original filing, Advice 3640-E, et al. EFFECTIVE DATE This supplemental advice filing will become effective updon date of filing, which is January 16, PROTESTS Anyone wishing to protest this filing may do so by letter sent via U.S. mail, facsimile or , no later than February 5, 2018, which is 20 days after the date of this filing. Protests must be submitted to:

12 ADVICE 3640-E-A (U 338-E) January 16, 2018 CPUC Energy Division ED Tariff Unit 505 Van Ness Avenue, 4th Floor San Francisco, California Facsimile: (415) EDTariffUnit@cpuc.ca.gov Copies of protests also should be mailed to the attention of the Director, Energy Division, Room 4004, at the address shown above. The protest shall also be sent to SCE either via or U.S. mail (and by facsimile, if possible) at the address shown below on the same date it is mailed or delivered to the Commission: For SCE: Russell G. Worden Managing Director, State Regulatory Operations Southern California Edison Company 8631 Rush Street Rosemead, California Telephone: (626) Facsimile: (626) AdviceTariffManager@sce.com Laura Genao Managing Director, State Regulatory Affairs c/o Karyn Gansecki Southern California Edison Company 601 Van Ness Avenue, Suite 2030 San Francisco, California Facsimile: (415) Karyn.Gansecki@sce.com For PG&E: Erik Jacobson Director, Regulatory Relations c/o Megan Lawson Pacific Gas and Electric Company 77 Beale Street, Mail Code B13U P.O. Box San Francisco, California Facsimile: (415) PGETariffs@pge.com

13 ADVICE 3640-E-A (U 338-E) January 16, 2018 For SDG&E: Megan Caulson Regulatory Tariff Manager 8330 Century Park Court, CP32F San Diego, CA mcaulson@semprautilities.com Any person (including individuals, groups, or organizations) may protest or respond to an advice letter (General Order 96-B, Section 7.4). The protest shall contain the following information: specification of the advice letter protested; grounds for the protest; supporting factual information or legal argument; name, telephone number, postal address, and (where appropriate) address of the protestant; and statement that the protest was sent to the utility no later than the day on which the protest was submitted to the reviewing Industry Division (General Order 96-B, Section 3.11). NOTICE In accordance with General Rule 4 of GO 96-B, SCE is serving copies of this advice filing to the interested parties shown on the attached GO 96-B and R service lists. Address change requests to the GO 96-B service list should be directed by electronic mail to AdviceTariffManager@sce.com or at (626) For changes to all other service lists, please contact the Commission s Process Office at (415) or by electronic mail at Process_Office@cpuc.ca.gov. Further, in accordance with Public Utilities Code Section 491, notice to the public is hereby given by filing and keeping the advice filing at SCE s corporate headquarters. To view other SCE advice letters filed with the Commission, log on to SCE s web site at For questions, please contact Marissa Blunschi at (626) or by electronic mail at Marissa.Blunschi@sce.com. Southern California Edison Company /s/ Russell G. Worden Russell G. Worden RGW:mb:jm

14 CALIFORNIA PUBLIC UTILITIES COMMISSION ADVICE LETTER FILING SUMMARY ENERGY UTILITY MUST BE COMPLETED BY UTILITY (Attach additional pages as needed) Company name/cpuc Utility No.: Southern California Edison Company (U 338-E) Utility type: Contact Person: Darrah Morgan ELC GAS Phone #: (626) PLC HEAT WATER Disposition Notice to: EXPLANATION OF UTILITY TYPE ELC = Electric GAS = Gas PLC = Pipeline HEAT = Heat WATER = Water (Date Filed/ Received Stamp by CPUC) Advice Letter (AL) #: 3640-E-A Tier Designation: 1 Supplement to Advice 3640-E, Update to Community Choice Aggregate and Energy Service Subject of AL: Provider Load Data and Utility Investment and Procurement Information Keywords (choose from CPUC listing): Compliance, Procurement AL filing type: Monthly Quarterly Annual One-Time Other If AL filed in compliance with a Commission order, indicate relevant Decision/Resolution #: Decision and Resolution E-4892 Does AL replace a withdrawn or rejected AL? If so, identify the prior AL: Summarize differences between the AL and the prior withdrawn or rejected AL: Confidential treatment requested? Yes No If yes, specification of confidential information: Confidential information will be made available to appropriate parties who execute a nondisclosure agreement. Name and contact information to request nondisclosure agreement/access to confidential information: Resolution Required? Yes No Requested effective date: 1/16/18 No. of tariff sheets: -0- Estimated system annual revenue effect: (%): Estimated system average rate effect (%): When rates are affected by AL, include attachment in AL showing average rate effects on customer classes (residential, small commercial, large C/I, agricultural, lighting). Tariff schedules affected: N/A Service affected and changes proposed 1 : Pending advice letters that revise the same tariff sheets: None 1 Discuss in AL if more space is needed.

15 Protests and all other correspondence regarding this AL are due no later, February 5, 2018, 20 days after the date of this filing, unless otherwise authorized by the Commission, and shall be sent to: CPUC, Energy Division Attention: Tariff Unit 505 Van Ness Avenue San Francisco, California For SCE: Russell G. Worden Managing Director, State Regulatory Operations Southern California Edison Company 8631 Rush Street Rosemead, California Telephone: (626) Facsimile: (626) Laura Genao Managing Director, State Regulatory Affairs c/o Karyn Gansecki Southern California Edison Company 601 Van Ness Avenue, Suite 2030 San Francisco, California Facsimile: (415) For PG&E: Erik Jacobson Director, Regulatory Relations c/o Megan Lawson Pacific Gas and Electric Company 77 Beale Street, Mail Code B13U P.O. Box San Francisco, California Facsimile: (415) For SDG&E: Megan Caulson Regulatory Tariff Manager 8330 Century Park Court, CP32F San Diego, CA

16 PG&E Gas and Electric Advice Filing List General Order 96-B, Section IV AT&T Downey & Brand Pacific Gas and Electric Company Albion Power Company Ellison Schneider & Harris LLP Praxair Alcantar & Kahl LLP Energy Management Service Regulatory & Cogeneration Service, Inc. Anderson & Poole Evaluation + Strategy for Social SCD Energy Solutions Innovation Atlas ReFuel G. A. Krause & Assoc. SCE BART GenOn Energy, Inc. SDG&E and SoCalGas Barkovich & Yap, Inc. Goodin, MacBride, Squeri, Schlotz & SPURR Ritchie Braun Blaising Smith Wynne P.C. Green Charge Networks San Francisco Water Power and Sewer CalCom Solar Green Power Institute Seattle City Light California Cotton Ginners & Growers Assn Hanna & Morton Sempra Utilities California Energy Commission ICF Southern California Edison Company California Public Utilities Commission International Power Technology Southern California Gas Company California State Association of Counties Intestate Gas Services, Inc. Spark Energy Calpine Kelly Group Sun Light & Power Casner, Steve Ken Bohn Consulting Sunshine Design Cenergy Power Leviton Manufacturing Co., Inc. Tecogen, Inc. Center for Biological Diversity Linde TerraVerde Renewable Partners City of Palo Alto Los Angeles County Integrated Waste Tiger Natural Gas, Inc. Management Task Force City of San Jose Los Angeles Dept of Water & Power TransCanada Clean Power Research MRW & Associates Troutman Sanders LLP Coast Economic Consulting Manatt Phelps Phillips Utility Cost Management Commercial Energy Marin Energy Authority Utility Power Solutions County of Tehama - Department of Public McKenna Long & Aldridge LLP Utility Specialists Works Crossborder Energy McKenzie & Associates Verizon Crown Road Energy, LLC Modesto Irrigation District Water and Energy Consulting Davis Wright Tremaine LLP Morgan Stanley Wellhead Electric Company Day Carter Murphy NLine Energy, Inc. Western Manufactured Housing Communities Association (WMA) Dept of General Services NRG Solar Yep Energy Don Pickett & Associates, Inc. Office of Ratepayer Advocates Douglass & Liddell OnGrid Solar

Request for Approval of Proposal and Cost Recovery for Click- Through Performance Metrics Pursuant to Resolution E-4868

Request for Approval of Proposal and Cost Recovery for Click- Through Performance Metrics Pursuant to Resolution E-4868 Erik Jacobson Director Regulatory Relations Pacific Gas and Electric Company 77 Beale St., Mail Code B13U P.O. Box 770000 San Francisco, CA 94177 Fax: 415-973-3582 November 22, 2017 Advice 5190-E (Pacific