P.O. Box 800 8631-E Rush Street. Rosemead, California 91770 (626) 302-9645 Fax (626) 302-6396

Gary A. Stern, Ph.D. Managing Director, State Regulatory Operations

June 17, 2020

ADVICE 4234-E (U 338-E)

PUBLIC UTILITIES COMMISSION OF THE STATE OF CALIFORNIA ENERGY DIVISION

SUBJECT: Southern California Edison Company’s 2020 Demand Response Auction Mechanism Results Corrections

Southern California Edison Company (SCE) hereby submits this Advice Letter (Advice) to correct non-public information to SCE’s 2020 Demand Response Auction Mechanism (DRAM) results, which were required by Decision (D.)14-12-024 and D.19-07-009. The revised information originally included as Confidential Attachment C to Advice 4140-E is provided herein as Confidential Attachment A.

PURPOSE

The purpose of this advice letter is to submit to the California Public Utilities Commission’s (Commission’s) Energy Division (ED) staff a Revised Confidential attachment to Advice 4140-E, originally submitted on January 10, 2020. During two teleconferences on January 24 and 31, 2020, ED brought to SCE’s attention inadvertent non-substantive typographical errors in the Confidential Attachment C to Advice 4140-E. As such, SCE is revising the Confidential Attachment C in Advice 4140-E to correct those inadvertent errors. REVISIONS

Confidential Attachment A to this advice letter corrects inadvertent typographical reporting errors in the original confidential Attachment C of Advice 4140-E. The corrections are based upon the above-referenced feedback received from the Commission’s Energy Division staff. The inadvertent clerical errors did not impact results of SCE’s 2020 DRAM solicitation. SCE is submitting Confidential Attachment A so that the Commission has complete and accurate data. Consistent with D.08-04-23, Ordering Paragraph 9, the Confidentiality Declaration SCE provided as Attachment L with Advice 4140-E continues to apply to this submission This advice letter will not increase any rate or charge, cause the withdrawal of service, or conflict with any other schedule or rule.

ADVICE 4234-E (U 338-E) - 2 - June 17, 2020

TIER DESIGNATION Pursuant to Resolution E-5015, this advice letter is submitted with a Tier 1 designation, which is the same tier designation as Advice 4140-E. EFFECTIVE DATE

SCE requests this advice letter be made effective on January 10, 2020, the same day as the original submittal, Advice 4140-E.

PROTESTS

SCE asks that the Commission, pursuant to GO 96-B, General Rule 7.5.1, maintain the original protest and comment period designated in Advice 4140-E and not reopen the protest period for this advice letter. The minor corrections of the inadvertent typographical errors included within this advice letter do not make substantive changes that would affect the overall evaluation of Advice 4140-E.

NOTICE

In accordance with General Rule 4 of GO 96-B, SCE is serving copies of this Advice Letter to the interested parties on the attached GO 96-B and A.17-01-012 et al. 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) 302-4039. For changes to all other service lists, please contact the Commission’s Process Office at (415) 703-2021 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 this Advice Letter at SCE’s corporate headquarters. To view other SCE advice letters filed with the Commission, log on to SCE’s web site at https://www.sce.com/wps/portal/home/regulatory/advice-letters. For questions, please contact Jerilyn López Mendoza at (626) 302-3444 or by electronic mail at Jerilyn.L.Mendoza@sce.com.

Southern California Edison Company

/s/ Gary A. Stern, Ph.D. Gary A. Stern, Ph.D.

GAS:jlm:jm Enclosure

ADVICE LETTER S U M M A R YENERGY UTILITY

Company name/CPUC Utility No.:

Utility type:Phone #:

EXPLANATION OF UTILITY TYPE

ELC GAS

PLC HEAT

MUST BE COMPLETED BY UTILITY (Attach additional pages as needed)

Advice Letter (AL) #:

WATERE-mail: E-mail Disposition Notice to:

Contact Person:

ELC = ElectricPLC = Pipeline

GAS = GasHEAT = Heat WATER = Water

(Date Submitted / Received Stamp by CPUC)

Subject of AL:

Tier Designation:

Keywords (choose from CPUC listing):AL Type: Monthly Quarterly Annual One-Time Other:If AL submitted in compliance with a Commission order, indicate relevant Decision/Resolution #:

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 NoIf 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: No. of tariff sheets:

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:

Service affected and changes proposed1:

Pending advice letters that revise the same tariff sheets:

1Discuss in AL if more space is needed.

CPUC, Energy DivisionAttention: Tariff Unit505 Van Ness AvenueSan Francisco, CA 94102 Email: EDTariffUnit@cpuc.ca.gov

Protests and all other correspondence regarding this AL are due no later than 20 days after the date of this submittal, unless otherwise authorized by the Commission, and shall be sent to:

Name:Title:Utility Name:Address:City:State:Telephone (xxx) xxx-xxxx:Facsimile (xxx) xxx-xxxx:Email:

Name:Title:Utility Name:Address:City:State:Telephone (xxx) xxx-xxxx: Facsimile (xxx) xxx-xxxx:Email:

Zip:

Zip:

ENERGY Advice Letter Keywords

Affiliate Direct Access Preliminary StatementAgreements Disconnect Service ProcurementAgriculture ECAC / Energy Cost Adjustment Qualifying FacilityAvoided Cost EOR / Enhanced Oil Recovery RebatesBalancing Account Energy Charge RefundsBaseline Energy Efficiency ReliabilityBilingual Establish Service Re-MAT/Bio-MATBillings Expand Service Area Revenue AllocationBioenergy Forms Rule 21Brokerage Fees Franchise Fee / User Tax RulesCARE G.O. 131-D Section 851CPUC Reimbursement Fee GRC / General Rate Case Self GenerationCapacity Hazardous Waste Service Area MapCogeneration Increase Rates Service OutageCompliance Interruptible Service SolarConditions of Service Interutility Transportation Standby ServiceConnection LIEE / Low-Income Energy Efficiency StorageConservation LIRA / Low-Income Ratepayer Assistance Street LightsConsolidate Tariffs Late Payment Charge SurchargesContracts Line Extensions TariffsCore Memorandum Account TaxesCredit Metered Energy Efficiency Text ChangesCurtailable Service Metering TransformerCustomer Charge Mobile Home Parks Transition CostCustomer Owned Generation Name Change Transmission LinesDecrease Rates Non-Core Transportation ElectrificationDemand Charge Non-firm Service Contracts Transportation RatesDemand Side Fund Nuclear UndergroundingDemand Side Management Oil Pipelines Voltage DiscountDemand Side Response PBR / Performance Based Ratemaking Wind PowerDeposits Portfolio Withdrawal of ServiceDepreciation Power Lines