UNITED STATES OF AMERICA BEFORE THE FEDERAL ENERGY REGULATORY COMMISSION

Transcription

1 UNITED STATES OF AMERICA BEFORE THE FEDERAL ENERGY REGULATORY COMMISSION Southern California Edison Company Docket No. ER SOUTHERN CALIFORNIA EDISON COMPANY ANNUAL UPDATE FILING OF THE TRANSMISSION REVENUE BALANCING ACCOUNT ADJUSTMENT October 2018

2 Karen Koyano Principal Manager FERC Tariffs & Compliance October 30, 2018 Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission 888 First Street, N.E. Washington, DC Dear Ms. Bose: Pursuant to Section of the Federal Energy Regulatory Commission s ( Commission ) Regulations under the Federal Power Act (18 C.F.R ), Southern California Edison Company ( SCE ) tenders for filing revisions to its Transmission Owner Tariff ( TO Tariff ), FERC Electric Tariff, Volume No. 6, to reflect the annual update of the Transmission Revenue Balancing Account Adjustment ( TRBAA ). The documents submitted with this filing consist of this letter of transmittal and all attachments hereto; the revised TO Tariff reflecting the revised TRBAA and TRBAA rate proposed in this filing in both clean and redline formats; the Prepared Direct Testimony of Jee Kim; the relevant Statements required under the Commission s Regulations; and workpapers supporting the revisions proposed herein. Background The TRBAA is a ratemaking mechanism designed to ensure that all Transmission Revenue Credits are flowed-through to transmission customers. Section 5.5 of the TO Tariff identifies the items subject to the Transmission Revenue Balancing Account ( TRBA ) and sets forth the procedure for revising the TRBAA on an annual basis. The TRBAA is based on the balance in the TRBA as of September 30 of the current year, and P.O. Box Walnut Grove Ave. Rosemead, CA 91770

3 Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission Page 2 October 30, 2018 a forecast of the Transmission Revenue Credits expected to be received in the following year. TRBAA The revised TRBAA applicable to retail service is a negative $73,132,374 and the revised retail TRBAA Rate is a negative $ per kilowatt-hour to be effective for retail TO Tariff transmission service rendered on and after January 1, This amount is a $48,535,905 increase from the currently-effective level of negative $121,668,279. The proposed wholesale TRBAA is a negative $72,958,322, an increase of $48,420,392 from the currently-effective level of negative $121,378,713. This increase is principally due to a decrease in the TRBA balance from 2018 to SCE s proposed TRBAA and TRBAA Rate applicable to End-Users are described in the Prepared Testimony of Ms. Jee Kim included with this filing. Revised TO Tariff The revised TRBAA and change to the TRBAA Rate applicable to End-Users proposed in this filing described above are reflected in the revised Appendices I and III to the TO Tariff submitted with this filing. Effective Date and Waiver As set forth in the TO Tariff, the TRBAA revisions are to become effective on January 1, SCE respectfully requests the Commission to assign an effective date of January 1, 2019 to the TRBAA revisions proposed herein.

4 Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission Page 3 October 30, 2018 Revenue Change The forecast annualized transmission revenue increase resulting from the implementation of the revised TRBAAs and TRBAA Rate by retail rate group and by Existing Contract customer is as follows: TRBAA REVENUE CHANGE $ Domestic 15,396,583 Lighting, Small & Medium Power 15,258,004 Large Power 12,876,726 Agricultural & Pumping 1,851,161 Street Lighting 398,038 Total Retail 45,780,512 EXISTING CONTRACT CUSTOMER REVENUE CHANGE $ Azusa 92,820 Banning 28,560 Colton 125,104 Riverside 706,860 LADWP 1,313,760 Vernon 132,090 Total Existing Contract Customer 2,399,194 TOTAL REVENUE CHANGE 48,179,705 The retail revenue forecast by month is set forth in Statements BG and BH. 1 1 Wholesale rates reflecting the wholesale TRBAA proposed in this filing will be set forth in SCE s 2019 formula rate update informational filing which will be made by December 1, 2018 in accordance with the protocols set forth in the TO Tariff.

5 Ms. Kimberly D. Bose, Secretary Federal Energy Regulatory Commission Page 4 October 30, 2018 Communications SCE requests that all correspondence, pleadings, and other communications concerning this filing be served upon: Julie Miller Senior Attorney Southern California Edison Company P.O. Box Walnut Grove Avenue Rosemead, California julie.miller@sce.com SCE also requests that an additional copy of any correspondence and orders be sent to the undersigned at Karen.Koyano@sce.com. Other Filing Requirements No expenses or costs included in the rates tendered herein have been alleged or judged in any administrative or judicial proceeding to be illegal, duplicative or unnecessary costs that are demonstrably the product of discriminatory employment practices. SCE believes that the information contained in this filing provides a sufficient basis upon which to accept this filing; however, to the extent necessary, SCE further requests that the Commission waive its filing requirements contained in Part 35 of its regulations to the extent necessary in order to permit this filing to be made effective as requested.

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7 2019 TRBAA FILING MAILING LIST California Department of Water Resources Thomas Trauger Spiegel & McDiarmid LLP 1875 Eye Street, NW Suite 700 Washington, DC California Department of Water Resources Latif Nurani Spiegel & McDiarmid LLP 1875 Eye Street, NW Suite 700 Washington, DC California Department of Water Resources Michael A Ramsey Mike.Ramsey@water.ca.gov California Department of Water Resources Peggy Bernardy, Staff Counsel California Department of Water Resources pbernard@water.ca.gov California Public Utilities Commission Pouneh Ghaffarian, Staff Attorney California Public Utilities Commission 505 Van Ness Ave. San Francisco, CALIFORNIA pouneh.ghaffarian@cpuc.ca.gov Federal Energy Regulatory Commission Michael Loatman Commission Staff Counsel 888 First St. NE Washington, DC Michael.Loatman@ferc.gov Golden State Water Company Jeffrey Janicke, Associate McCarter & English, LLP th Street, N.W., 12th Floor California Department of Water Resources Katharine M. Mapes, Attorney Spiegel & McDiarmid LLP 1825 Eye Street N.W. 7th Floor Washington, DC katharine.mapes@spiegelmcd.com California Department of Water Resources E Service Spiegel & McDiarmid LLP 1875 Eye St, NW Suite 700 Washington, DC eservice@spiegelmcd.com California Department of Water Resources Matthew Goldman Deputy Attorney General California Office of Attorney General 1300 I Street Sacramento, CALIFORNIA matthew.goldman@doj.ca.gov California Public Utilities Commission Gregory Heiden California Public Utilities Commission 505 Van Ness Ave. San Francisco, CALIFORNIA gxh@cpuc.ca.gov California Public Utilities Commission Lou Torres 505 Van Ness Avenue San Francisco, CALIFORNIA Louis.Torres@cpuc.ca.gov Federal Energy Regulatory Commission Ryan Walsh Commission Staff Counsel Ryan.Walsh@ferc.gov Imperial Irrigation District Michael Postar, Attorney Duncan, Weinberg, Genzer & Pembroke PC

8 Washington, DC Imperial Irrigation District Linda L. Murray-Kimball, Secretary Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, NW Suite 800 Washington, DC lmk@dwgp.com Imperial Irrigation District Robert A. Laurie Assistant General Counsel, Ener Imperial Irrigation District P.O. Box 937 Imperial, CALIFORNIA ralaurie@iid.com Los Angeles Department of Water & Power Philip Mone Of Counsel Van Ness Feldman LLP 1050 Thomas Jefferson Street, NW Washington, DC pwm@vnf.com Los Angeles Department of Water & Power Kelsey Bagot Van Ness Feldman LLP 1050 Thomas Jefferson St., NW Seventh Floor Washington, DC kbagot@vnf.com Modesto Irrigation District Sean Neal, Attorney Duncan, Weinberg, Genzer & Pembrok PC 915 L Street Suite 1410 Sacramento, CALIFORNIA smn@dwgp.com Modesto Irrigation District Gregory E Salyer Resource Planning & Developmen Modesto Irrigation District PO Box M St., NW Suite 800 Washington, DC mrp@dwgp.com Imperial Irrigation District Sean Neal, Attorney Duncan, Weinberg, Genzer & Pembroke PC 915 L Street Suite 1410 Sacramento, CALFORNIA smn@dwgp.com Imperial Irrigation District Jamie Asbury Imperial Irrigation District 1561 Main Street El Centro, CALIFORNIA jlasbury@iid.com Los Angeles Department of Water & Power Syndi Driscoll Deputy City Attorney Los Angeles Department of Water & Power 221 North Figueroa St LOS ANGELES, CALIFORNIA syndi.driscoll@ladwp.com Los Angeles Department of Water & Power David B. Cohen dcohen@navigant.com Modesto Irrigation District Linda L. Murray-Kimball, Secretary Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, NW Suite 800 Washington, DC lmk@dwgp.com Modesto Irrigation District James McFall jamesm@mid.org

9 Modesto, CALIFORNIA Northern California Power Agency Lisa Dowden Spiegel & McDiarmid LLP 1875 Eye Street, NW Suite 700 Washington, DC Northern California Power Agency Latif Nurani Spiegel & McDiarmid LLP 1875 Eye Street, NW Suite 700 Washington, DC Northern California Power Agency Randy Howard Northern California Power Agency 651 Commerce Drive Roseville, CALIFORNIA Pacific Gas and Electric Company Moshreq Sobhy, Principal, Case Manager Transm Pacific Gas and Electric Company 77 Beale St. San Francisco, CALIFORNIA San Diego Gas & Electric Company Jeff Stein Six Cities CA Bonnie Susan Blair, Attorney Thompson Coburn LLP 1909 K Street, N.W. Suite 600 Washington, DC bblair@thompsoncoburn.com Six Cities CA Thomas (Tom) Miller Northern California Power Agency Katharine M. Mapes, Attorney Spiegel & McDiarmid LLP 1825 Eye Street N.W. 7th Floor Washington, DC katharine.mapes@spiegelmcd.com Northern California Power Agency E Service Spiegel & McDiarmid LLP 1875 Eye St, NW Suite 700 Washington, DC eservice@spiegelmcd.com Pacific Gas and Electric Company Charles Middlekauff, Attorney Pacific Gas and Electric Company PO Box 7442 San Francisco, CALIFORNIA crmd@pge.com San Diego Gas & Electric Company Christopher Lyons, Senior Counsel San Diego Gas & Electric San Diego Gas & Electric 101 Ash Street San Diego, CALIFORNIA clyons@semprautilities.com Six Cities CA Margaret McNaul Thompson Coburn LLP 1909 K Street, N.W. Suite 600 Washington, DC mmcnaul@thompsoncoburn.com Six Cities CA Rebecca Shelton Thompson Coburn LLP 1909 K Street, N.W., Suite 600 Washington, DC rshelton@thompsoncoburn.com Six Cities CA Carrie A Thompson

10 City of Banning, California Six Cities CA Nicholas T Burki Integrated Resources Planner I ANAHEIM PUBLIC UTILITIES 201 S. Anaheim Blvd., Suite 802 Anaheim, CALIFORNIA Nburki@anaheim.net Six Cities CA Eric R Klinkner Deputy General Manager City of Pasadena Dept. of Water & Power 150 S. Los Robles, Suite 200 Pasadena, CALIFORNIA eklinkner@cityofpasadena.net State Water Contractors Bhaveeta Mody Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, N.W. Suite 800 Washington, DC bkm@dwgp.com State Water Contractors Timothy Haines Senior Power Manager 1121 L Street, suite 1050 Sacramento, CALIFORNIA thaines@swc.org The City of Santa Clara, California and the M-S-R Public Power Agency Peter Scanlon Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street Suite 800 Washington, DC pjs@dwgp.com The City of Santa Clara, California and the M-S-R Public Power Agency Lisa Gast, Attorney Integrated Resources Manager City of Anaheim, California 201 S. Anaheim Blvd. Suite 802 Anaheim, CALIFORNIA cathompson@anaheim.net Six Cities CA David X. Kolk DKolk@ci.colton.ca.us Six Cities CA MARTIN B OCHOTORENA Contracts/Projects Manager th Street Riverside, CALIFORNIA mochotorena@riversideca.gov State Water Contractors Linda L. Murray-Kimball, Secretary Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, NW Suite 800 Washington, DC lmk@dwgp.com State Water Contractors Stefanie D Morris, General Counsel State Water Contractors 1121 L Street, Suite 1050 Sacramento, CALIFORNIA smorris@swc.org The City of Santa Clara, California and the M-S-R Public Power Agency Linda L. Murray-Kimball, Secretary Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, NW Suite 800 Washington, DC lmk@dwgp.com The City of Santa Clara, California and the M-S-R Public Power Agency Joshua Adrian, INDIVIDUAL

11 Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street Suite 800 Washington, DC lsg@dwgp.com Transmission Agency of Northern California Michael Postar Attorney Duncan, Weinberg, Genzer & Pembroke PC 1615 M St., NW Suite 800 Washington, DC mrp@dwgp.com Transmission Agency of Northern California Bhaveeta Mody Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, N.W. Suite 800 Washington, D.C., DC bkm@dwgp.com 1615 M. Street, NW Suite 800 Washington, DC jea@dwgp.com Transmission Agency of Northern California Linda L. Murray-Kimball, Secretary Duncan, Weinberg, Genzer & Pembroke PC 1615 M Street, NW Suite 800 Washington, DC lmk@dwgp.com

12 REVISED TRANSMISSION OWNER TARIFF SHEETS (Clean Version)

13 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No. 6 APPENDIX I Transmission Revenue Requirement 1. End-Use Customers: For purposes of the calculation of End-User Transmission Rates, the Transmission Revenue Requirement shall be equal to the retail Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX plus the retail TRBAA of ($73,132,374). 2. Wholesale Customers: For purposes of the calculation of Access Charges applicable to wholesale customers: a. The Transmission Revenue Requirement shall be equal to the sum of the Wholesale Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX and the wholesale TRBAA of ($72,958,322), less the Standby Transmission Revenues determined pursuant to the formula rate in Appendix IX. b. The High Voltage Transmission Revenue Requirement shall be equal to the sum of the High Voltage Wholesale Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX and the High Voltage wholesale TRBAA of ($72,644,844), less the High Voltage Standby Transmission Revenues determined pursuant to the formula rate in Appendix IX. c. The Low Voltage Transmission Revenue Requirement shall be equal to the sum of the Low Voltage Wholesale Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX and the Low Voltage wholesale TRBAA of ($313,478), less the Low Voltage Standby Transmission Revenues determined pursuant to the formula rate in Appendix IX. Tariff Record Proposed Effective Date: 01/01/2019 Version Number: Option Code: A

14 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No. 6 d. Gross Load consistent with the High Voltage Transmission Revenue Requirement shall be as determined pursuant to the formula rate in Appendix IX. e. The sum of the twelve monthly retail system peak demands measured at the ISO Controlled Grid level shall be as determined pursuant to the formula rate in Appendix IX.

15 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No. 6 APPENDIX III TRANSMISSION RATES FOR END-USE SERVICE Base transmission rates for service to End-Use Customers shall be determined pursuant to the formula rate in Appendix IX. SCE shall post the base transmission rates applicable to each End-User rate schedule on its website: In addition, the following transmission rates shall apply to service provided to End-Use Customers: A TRBAA Rate of ($ )/kWh shall apply to all End-User rate schedules A TACBAA Rate of ($ )/kWh shall apply to all End-User rate schedules Tariff Record Proposed Effective Date: 01/01/2019 Version Number: Option Code: A

16 REVISED TRANSMISSION OWNER TARIFF SHEETS (Redline Version)

17 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No. 6 APPENDIX I Transmission Revenue Requirement 1. End-Use Customers: For purposes of the calculation of End-User Transmission Rates, the Transmission Revenue Requirement shall be equal to the retail Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX plus the retail TRBAA of ($73,132,374121,668,279). 2. Wholesale Customers: For purposes of the calculation of Access Charges applicable to wholesale customers: a. The Transmission Revenue Requirement shall be equal to the sum of the Wholesale Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX and the wholesale TRBAA of ($72,958,322121,378,713), less the Standby Transmission Revenues determined pursuant to the formula rate in Appendix IX. b. The High Voltage Transmission Revenue Requirement shall be equal to the sum of the High Voltage Wholesale Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX and the High Voltage wholesale TRBAA of ($72,644,844120,967,080), less the High Voltage Standby Transmission Revenues determined pursuant to the formula rate in Appendix IX. c. The Low Voltage Transmission Revenue Requirement shall be equal to the sum of the Low Voltage Wholesale Base Transmission Revenue Requirement determined pursuant to the formula rate in Appendix IX and the Low Voltage wholesale TRBAA of ($313,478411,633), less the Low Voltage Standby Transmission Revenues determined pursuant to the formula rate in Appendix IX. 01/01/20198 Tariff Record Proposed Effective Date:

18 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No Version Number: Option Code: A d. Gross Load consistent with the High Voltage Transmission Revenue Requirement shall be as determined pursuant to the formula rate in Appendix IX. e. The sum of the twelve monthly retail system peak demands measured at the ISO Controlled Grid level shall be as determined pursuant to the formula rate in Appendix IX.

19 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No. 6 APPENDIX III TRANSMISSION RATES FOR END-USE SERVICE Base transmission rates for service to End-Use Customers shall be determined pursuant to the formula rate in Appendix IX. SCE shall post the base transmission rates applicable to each End-User rate schedule on its website: In addition, the following transmission rates shall apply to service provided to End-Use Customers: A TRBAA Rate of ($ )/kWh shall apply to all End-User rate schedules A TACBAA Rate of ($ )/kWh shall apply to all End-User rate schedules

20 Southern California Edison Company FERC Electric Tariff, Third Revised Volume No /01/ Tariff Record Proposed Effective Date: Version Number: Option Code: A

21 ANNUAL UPDATE FILING Statements AH, AU, BD, BG, BH, BK, and BL

22 Statement AH Page 1 of 1 Southern California Edison Company Operation and Maintenance Expenses Period II 2019 Line No. ETC Cost Differentials Per Docket No. ER January ($433,333.33) 2 February ($433,333.33) 3 March ($433,333.33) 4 April ($433,333.33) 5 May ($433,333.33) 6 June ($433,333.33) 7 July ($433,333.33) 8 August ($433,333.33) 9 September ($433,333.33) 10 October ($433,333.33) 11 November ($433,333.33) 12 December ($433,333.33) Total ($5,200,000.00)

23 Statement AU Page 1 of 1 Southern California Edison Company Revenue Credits Period II 2019 Line No. Month Wheeling High Voltage Low Voltage 1 January ($5,075,000.00) ($5,064,342.50) ($10,657.50) 2 February ($5,075,000.00) ($5,064,342.50) ($10,657.50) 3 March ($5,075,000.00) ($5,064,342.50) ($10,657.50) 4 April ($5,075,000.00) ($5,064,342.50) ($10,657.50) 5 May ($5,075,000.00) ($5,064,342.50) ($10,657.50) 6 June ($5,075,000.00) ($5,064,342.50) ($10,657.50) 7 July ($5,075,000.00) ($5,064,342.50) ($10,657.50) 8 August ($5,075,000.00) ($5,064,342.50) ($10,657.50) 9 September ($5,075,000.02) ($5,064,342.51) ($10,657.51) 10 October ($5,075,000.02) ($5,064,342.51) ($10,657.51) 11 November ($5,075,000.02) ($5,064,342.51) ($10,657.51) 12 December ($5,075,000.02) ($5,064,342.51) ($10,657.51) Total ($60,900,000.08) ($60,772,110.04) ($127,890.04)

24 Statement BD Page 1 of 1 Southern California Edison Company Allocation Energy and Supporting Data Period II 2019 Monthly Energy Use by End-Use Customer Group (MWh) Lighting, Small Agricultural Street Line No. Month Domestic & Medium Power Large Power & Pumping Lighting Total 1 January 2,396,813 2,210,641 1,860, ,030 61,887 6,733,463 2 February 1,867,806 1,840,667 1,647, ,653 57,345 5,581,163 3 March 1,973,250 2,003,281 1,766, ,513 59,435 5,992,035 4 April 1,984,201 2,151,346 1,821, ,026 58,356 6,258,550 5 May 2,034,269 2,233,692 1,886, ,181 57,790 6,495,541 6 June 2,012,476 2,121,492 1,836, ,794 54,938 6,337,854 7 July 2,724,075 2,567,138 2,015, ,144 56,624 7,738,285 8 August 2,852,443 2,613,754 2,124, ,514 55,800 8,028,437 9 September 2,666,418 2,417,814 1,917, ,259 56,256 7,394, October 2,440,425 2,484,285 2,057, ,298 59,280 7,354, November 1,852,010 1,973,375 1,807, ,965 58,635 5,914, December 2,207,366 2,150,943 1,850, ,275 61,968 6,488, Total 27,011,549 26,768,428 22,590,747 3,247, ,313 80,316,688

25 Statement BG Page 1 of 1 Southern California Edison Company Statement of Proposed Revenues Period II 2019 Monthly TRBAA Revenue by End-Use Customer Group Lighting, Small Agricultural Street Total Line No. Month Domestic & Medium Power Large Power & Pumping Lighting TRBAA 1 January ($2,085,228) ($1,923,258) ($1,618,280) ($177,506) ($53,842) ($5,858,113) 2 February ($1,624,991) ($1,601,380) ($1,433,492) ($145,858) ($49,891) ($4,855,612) 3 March ($1,716,727) ($1,742,855) ($1,536,904) ($164,877) ($51,709) ($5,213,071) 4 April ($1,726,255) ($1,871,671) ($1,584,811) ($211,432) ($50,770) ($5,444,939) 5 May ($1,769,814) ($1,943,312) ($1,641,351) ($246,367) ($50,277) ($5,651,121) 6 June ($1,750,854) ($1,845,698) ($1,597,454) ($272,131) ($47,796) ($5,513,933) 7 July ($2,369,945) ($2,233,410) ($1,753,315) ($326,375) ($49,263) ($6,732,308) 8 August ($2,481,625) ($2,273,966) ($1,848,687) ($331,917) ($48,546) ($6,984,740) 9 September ($2,319,783) ($2,103,498) ($1,667,834) ($293,415) ($48,943) ($6,433,473) 10 October ($2,123,169) ($2,161,328) ($1,789,622) ($272,569) ($51,573) ($6,398,262) 11 November ($1,611,248) ($1,716,836) ($1,572,125) ($193,980) ($51,012) ($5,145,202) 12 December ($1,920,408) ($1,871,320) ($1,610,076) ($189,029) ($53,912) ($5,644,745) Total ($23,500,047) ($23,288,532) ($19,653,950) ($2,825,456) ($607,532) ($69,875,518)

26 Statement BH Page 1 of 1 Southern California Edison Company Statement of Present Revenues Period II 2019 Monthly TRBAA Revenue by End-Use Customer Group Lighting, Small Agricultural Street Total Line No. Month Domestic & Medium Power Large Power & Pumping Lighting TRBAA 1 January ($3,451,411) ($3,183,323) ($2,678,532) ($293,803) ($89,117) ($9,696,187) 2 February ($2,689,640) ($2,650,561) ($2,372,677) ($241,420) ($82,577) ($8,036,875) 3 March ($2,841,480) ($2,884,725) ($2,543,840) ($272,899) ($85,587) ($8,628,531) 4 April ($2,857,249) ($3,097,938) ($2,623,135) ($349,957) ($84,033) ($9,012,313) 5 May ($2,929,347) ($3,216,516) ($2,716,719) ($407,780) ($83,217) ($9,353,579) 6 June ($2,897,965) ($3,054,948) ($2,644,062) ($450,424) ($79,111) ($9,126,509) 7 July ($3,922,668) ($3,696,679) ($2,902,039) ($540,207) ($81,538) ($11,143,131) 8 August ($4,107,517) ($3,763,805) ($3,059,895) ($549,380) ($80,351) ($11,560,949) 9 September ($3,839,641) ($3,481,652) ($2,760,553) ($485,653) ($81,009) ($10,648,507) 10 October ($3,514,211) ($3,577,371) ($2,962,133) ($451,149) ($85,363) ($10,590,228) 11 November ($2,666,894) ($2,841,660) ($2,602,138) ($321,070) ($84,434) ($8,516,196) 12 December ($3,178,607) ($3,097,357) ($2,664,953) ($312,875) ($89,233) ($9,343,025) Total ($38,896,630) ($38,546,536) ($32,530,676) ($4,676,617) ($1,005,570) ($115,656,030)

27 Statement BK Page 1 of 2 Southern California Edison Company Electric Utility Cost of Service Calculation of Revised Transmission Revenue Balancing Account Adjustment For Wholesale Service Effective January 1, 2019 Period II 2019 Line No. Description Total High Voltage Low Voltage 1 Balance in TRBA on September 30, 2018 ($6,192,816) ($6,166,186) ($26,630) 2 Used for January 1, 2019 Rate 3 Including Interest 4 5 Forecast Wheeling Revenues ($60,900,000) ($60,772,110) ($127,890) 6 13 Forecast ETC Cost Differentials ($5,200,000) ($5,043,901) ($156,099) Revised Wholesale TRBAA Before Franchise Fees ($72,292,816) ($71,982,197) ($310,619) Adjustment for Franchise Fees at % ($665,506) ($662,647) ($2,859) Revised Wholesale TRBAA ($72,958,322) ($72,644,844) ($313,478)

28 Southern California Edison Company Electric Utility Cost of Service Calculation of Revised Transmission Revenue Balancing Account Adjustment For Retail Service Effective January 1, 2019 Period II 2019 Line No. Description Total Statement BK Page 2 of 2 1 Balance in TRBA on September 30, 2018 ($6,192,816) 2 Used for January 1, 2019 Rate 3 Including Interest 4 5 Forecast Wheeling Revenues ($60,900,000) 6 13 Forecast ETC Cost Differentials ($5,200,000) Revised TRBAA Before Franchise Fees and ($72,292,816) 16 Uncollectable Accounts Adjustment for Franchise Fees and ($839,558) 19 Uncollectable Accounts at % Revised TRBAA For End-Use Customers ($73,132,374)

29 Southern California Edison Company Rate Design Information Transmission Revenue Balancing Account Adjustment Rate Period II 2019 Statement BL Page 1 of 1 Purpose: The purpose of the TRBAA Rate is to flow-through to End-Use Customers the Transmission Revenue Credits Line No. Description Total 1 Revised TRBAA For End-Use Customers ($73,132,374) 2 Effective January 1, Gross Load (kwh) 84,042,199,813 5 Twelve-months ended September 30, TRBAA Rate for End Use Customers ($/kwh) ($ ) 8 (Line 1/Line 4)

30 UNITED STATES OF AMERICA BEFORE THE FEDERAL ENERGY REGULATORY COMMISSION Southern California Edison Company ) Docket No. ER PREPARED DIRECT TESTIMONY OF JEE KIM ON BEHALF OF SOUTHERN CALIFORNIA EDISON COMPANY October 2018

31 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page 1 UNITED STATES OF AMERICA BEFORE THE FEDERAL ENERGY REGULATORY COMMISSION Southern California Edison Company ) ) ) Docket No. ER SUMMARY OF THE PREPARED DIRECT TESTIMONY OF JEE KIM (EXHIBIT SCE-1) Ms. Kim provides an overview of Southern California Edison Company s ( SCE ) 2019 Transmission Revenue Balancing Account Adjustment ( TRBAA ) rate revision filing and determines SCE s 2019 TRBAA and TRBAA rate for SCE s End-Use Customers (retail customers). Included in Ms. Kim s testimony is an overview and description of SCE s current categories of Transmission Revenue Balancing Account ( TRBA ) entries.

32 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page 2 UNITED STATES OF AMERICA BEFORE THE FEDERAL ENERGY REGULATORY COMMISSION Southern California Edison Company ) Docket No. ER PREPARED DIRECT TESTIMONY OF JEE KIM ON BEHALF OF SOUTHERN CALIFORNIA EDISON COMPANY QUALIFICATIONS Q. Please state your name and business address for the record. A. My name is Jee Kim, and my business address is 8631 Rush St., Rosemead, California Q. Briefly describe your present responsibilities at the Southern California Edison Company ( SCE ). A. I am a Senior Rate Advisor in the FERC Rates & Market Integration Division within Edison s Regulatory Affairs organizational unit. My primary responsibilities include providing analysis and policy guidance supporting the development of pricing and related rate terms associated with contracts and services subject to the jurisdiction of the Federal Energy Regulatory Commission ( FERC or Commission ). Q. Briefly describe your educational and professional background. A. I received a Bachelor of Arts degree in Economics from the University of California Irvine in September In February 2008, I joined SCE as a Financial Analyst in the Regulatory Policy and Affairs Department, where my responsibilities included supporting the development of the stated rate

33 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page case and annual Formula Updates, supporting the development of the annual filing for SCE Construction Work In Progress ( CWIP ) Balancing Account, and supporting the development of Wholesale Distribution Access Charges for wholesale load customers. Q. Have you submitted testimony to the Commission previously? A. Yes, I have submitted testimony in the following FERC Docket Nos. ER and ER PURPOSE OF TESTIMONY Q. What is the purpose of your testimony in this proceeding? A. The purpose of my testimony is to present SCE s Transmission Revenue Balancing Account Adjustment ( TRBAA ) and associated TRBAA rate applicable to End-User Customers (retail customers) proposed to become effective January 1, Q. What is the TRBAA? A. The TRBAA mechanism has been a key component of the development and recovery of Transmission Revenue Requirements ( TRRs ) in California since initiation of the new market structure in The TRBAA is a ratemaking mechanism, set forth in Section 5.5 of SCE s Transmission Owner Tariff ( TO Tariff ), that flows-through to transmission customers all Transmission Revenue Credits ( TRCs ) received by SCE. Q. How does the TRBAA mechanism operate? A. Under the TO Tariff, the TRBAA and TRBAA rate are to be updated annually effective January 1. The updated TRBAA is to be based on the balance in the Transmission Revenue Balancing Account ( TRBA ) as of

34 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page September 30 of the current year and the forecast of TRCs expected to be received in the following year. Q. How is the TRBAA assessed to transmission customers? A. As described in the TO Tariff, a separately stated per kwh rate is developed for assessing the TRBAA to End-Use Customers. This rate is based on the TRBAA divided by SCE s deliveries to End-Use Customers ( Gross Load ). In the case of wholesale transmission customers, there is no separate per kwh TRBAA rate. Rather, the TRBAA is added to the Base TRR and Standby revenue components to yield the wholesale TRR. Then, in accordance with the California Independent System Operator Corporation ( ISO ) Tariff, the wholesale TRR is split into High Voltage and Low Voltage components. Once developed, SCE provides the resulting High Voltage TRR to the ISO for its development of the High Voltage Access Charges and High Voltage Wheeling Access Charges to be effective on January 1. SCE calculates its Low Voltage Access Charge and the Low Voltage Wheeling Access Charge by dividing the Low Voltage TRR by Gross Load. SCE calculates its High Voltage Existing Contracts Access Charge and Low Voltage Existing Contracts Access Charge by dividing the appropriate voltage TRR by the sum of Edison s twelve monthly retail system peak demands measured at the ISO Controlled Grid level consistent with such revenue requirement in accordance with its TO Tariff. Q. What is the proposed TRBAA to be applicable to SCE s retail transmission customers on January 1, 2019? A. As shown in Statement BK and Appendix I of the revised TO Tariff, the TRBAA applicable to retail customers for service rendered beginning on

35 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page January 1, 2019 is a negative $73.1 million, an increase of $48.5 million from the currently-effective level of negative $121.7 million. This amount is equal to a forecast of the TRCs for 2019 and the balance in the TRBA as of September 30, 2018 as described below. Q. Please explain the forecast of TRCs. A. The forecast of TRCs for 2019 has two components Wheeling revenue and ETC Cost Differentials. Each component of the TRCs was forecast separately. Q. How was the forecast of Wheeling revenue developed? A. The forecast of Wheeling revenue is based on the actual Wheeling revenue SCE received from the ISO for Wheeling service reflected in the TRBAA during the 12-month period ending September Q. How was the forecast of ETC Cost Differentials developed? A. The forecast of ETC Cost Differentials is based on the actual ETC Cost Differentials reflected in the TRBAA during the 12-month period ending September This forecast amount reflects the actual Scheduling Coordinator costs SCE was billed by the ISO for transmission service under the Exchange Agreement between the Los Angeles Department of Water and Power ( LADWP ) and SCE, Rate Schedule FERC No. 219 ( Exchange Agreement ). The forecast ETC Cost Differentials amount also reflects the value of actual energy returned by LADWP to SCE in payment for transmission losses to reflect the settlement in Docket Nos. ER , ER07-955, and EL03-214, which became effective on January 14, 2008 ( Settlement ). 25

36 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page Q. Please describe the proposed TRBAA applicable to wholesale transmission customers. A. As shown in Statement BK and Appendix I of the revised TO Tariff, the TRBAA applicable to wholesale customers for service beginning on January 1, 2019 is a negative $73.0 million, an increase of $48.4 million from the currently-effective level of negative $121.4 million. The derivation of the forecast TRCs for 2019 for the wholesale TRBAA is the same as described above for the retail TRBAA. Next, the TRBAA applicable to wholesale transmission customers was separated into High Voltage and Low Voltage components. Q. How did you split the TRBAA revenue requirement into High Voltage and Low Voltage components in this filing? A. In developing this filing, SCE reflected the methodology set forth in Section 12.1(e) of Schedule 3 of Appendix F to the ISO Tariff. That methodology is as follows: Wheeling revenues associated with transactions exiting the ISO Grid at High Voltage Scheduling Points or Take-Out Points were reflected as High Voltage components; Wheeling revenues associated with transactions exiting the ISO Grid at Low Voltage Scheduling Points or Take-Out Points were attributed between High Voltage and Low Voltage components based on the High Voltage and Low Voltage Wheeling Access Charge rates assessed to such transactions by the ISO; Other Transmission Revenue Credits (ETC Cost Differentials) were allocated between High Voltage and Low Voltage components on a gross plant basis.

37 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page The gross plant percentages used in this filing are the ones set forth in SCE s 2019 formula transmission rate update informational filing ( 2019 Formula Rate Update ). In accordance with the formula rate protocols, SCE will file the 2019 Formula Rate Update by December 1, Q. Please discuss the derivation of SCE s proposed retail TRBAA rate. A. The TRBAA rate applicable to End-Use transmission customers beginning on January 1, 2019, as set forth in Statement BL and Appendix III of the revised TO Tariff, is a negative $ per kwh. As shown in Statement BL, this rate is equal to the TRBAA of negative $73.1 million divided by SCE s Gross Load at the meter for the twelve month period ended September 30, Q. How did SCE determine Gross Load used to calculate the TRBAA rate in this filing? A. In this filing, SCE used recorded billed sales for the period October 2017 through September 2018 of 84,042 GWhs for the purpose of developing End-Use TRBAA rate as shown in Statement BL. Total recorded delivered sales for this period was 85,453 GWhs. SCE is excluding from the recorded sales those deliveries that resulted in no transmission revenues due to the netting structure of the Net Energy Metering Program ( NEM Program ) authorized by the California Public Utilities Commission ( CPUC ). This proposal is consistent with the Commission acceptance of SCE s proposed retail rate change in FERC Docket No. ER Q. Please describe the CPUC s NEM Program. A. Since 1996, SCE s retail tariffs authorized by the CPUC have included an NEM Program. This Program allows certain retail customers to net kwh amounts of energy exported against amounts supplied to the customer over

38 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page the customer s monthly billing period, and to further net bills over an annual period. The NEM Program netting results in participants being billed for fewer kwh of energy than the amount of kwh that SCE supplies to the customers, with some participants potentially being billed for zero kwh of transmission service. In a recent decision ( the Successor Tariff Decision ), the CPUC established a successor NEM tariff that eliminates the current caps on the size of individual participating generation facilities and on the total kwh of generation that can participate in the program. The Successor Tariff Decision furthermore explicitly provides that the transmission component of retail rates will be bypassable, i.e., subject to netting as described above, and thus some kwh of retail energy supplied by SCE will not yield transmission revenue. Q. Why did SCE exclude NEM Program deliveries that are expected to result in no revenue from the recorded sales in developing retail TRBAA rate? A. Instead of developing the TRBAA rate using delivered retail sales, SCE believes that the TRBAA rate should reflect that not all retail delivered energy is assessed transmission charges as a result of the NEM Program. Thus, the TRBAA rate design should be based on SCE s kwh deliveries that are expected to result in transmission revenues to SCE. Q. Are you proposing revised wholesale rates in this filing? A. No. SCE will reflect the revised wholesale TRBAA proposed herein in its 2019 Formula Rate Update. The resulting wholesale rates will be set forth in that filing. Q. Have the revised TRBAA and the retail TRBAA rate been reflected in SCE s TO Tariff?

39 Southern California Edison Company Docket No. ER Exhibit No. SCE-1 Page A. Yes. The revised TRBAA and the retail TRBAA rate are reflected in the revised Appendices I and III to the TO Tariff included with this filing. Q. Does this conclude your testimony? A. Yes.

40

41 ANNUAL UPDATE FILING WORKPAPERS TABLE OF CONTENTS Statements Page Statement AH Statement AU Statement BK Statement BL Wholesale Revenue Change

42 2019 TRBAA Update Workpapers Page 1 of 38 Statement AH Page 1 of 1 Southern California Edison Company Operation and Maintenance Expenses Period II 2019 Line No. ETC Cost Differentials Per Docket No. ER January ($433,333.33) 2 February ($433,333.33) 3 March ($433,333.33) 4 April ($433,333.33) 5 May ($433,333.33) 6 June ($433,333.33) 7 July ($433,333.33) 8 August ($433,333.33) 9 September ($433,333.33) 10 October ($433,333.33) 11 November ($433,333.33) 12 December ($433,333.33) Total ($5,200,000.00)

43 2019 TRBAA Update Workpapers Page 2 of 38 ETC Cost Differentials -- Statement AH Service Month Oct-17 Nov-17 Dec-17 Jan-18 Feb-18 Mar-18 Apr-18 May-18 Jun-18 Jul-18 Aug-18 Sep-18 Total CAISO Invoices Sep-14 $1.80 Oct-14 ($1.04) Nov-14 $4.63 Dec-14 $3, $3, $4, Jan-15 $5, Feb-15 $7, $0.00 Mar-15 $1, $1, ($15.74) Apr-15 $3, $ $0.00 May-15 $5, $ $0.01 Jun-15 $4, $45.18 Jul-15 $3, $ Aug-15 $ ($141.77) Sep-15 $5, Oct-15 ($156.10) Nov-15 $2, Dec-15 Jan-16 Feb-16 Mar-16 $9, Apr-16 $8, May-16 $4, Jun-16 $5, Jul-16 ($842.92) Aug-16 $3, Sep-16 ($481.30) Oct-16 $ Nov-16 $ Dec-16 $20, ($120.36) Jan-17 $6, Feb-17 $7, ($5,664.09) Mar-17 $2, Apr-17 ($1,212.68) May-17 $ Jun-17 $2, Jul-17 $2, $3, Aug-17 $3, $ Sep-17 ($29,965.28) $10, $8, Oct-17 $56, $80, $2, ($593.93) Nov-17 $158, ($30,289.17) ($4,592.64) $3, Dec-17 $222, ($125,882.21) ($11,137.32) Jan-18 $108, ($49,229.66) $ Feb-18 $27, $100, ($5,569.46) Mar-18 $63, ($35,758.06) ($3,915.79) Apr-18 $72, ($51,158.71) $8, May-18 ($31,856.54) ($10,485.24) $ Jun-18 ($59,430.37) ($68,438.80) Jul-18 $327, ($104,883.13) Aug-18 $149, ($125,459.67) Sep-18 $2, Subtotal CAISO Invoices $63, $262, $222, ($1,677.33) ($24,705.79) $162, $43, ($80,202.35) ($71,631.68) $281, $43, ($117,644.05) $784, Value of Returned Losses ($465,030.22) ($354,931.32) ($303,902.76) ($525,531.45) ($251,407.25) ($273,056.49) ($264,411.59) ($132,214.21) ($272,125.91) ($1,622,599.00) ($893,375.16) ($602,677.25) ($5,961,262.61) Total Reflected in TRBAA ($401,624.95) ($91,969.84) ($81,235.75) ($527,208.78) ($276,113.04) ($110,609.98) ($220,547.48) ($212,416.56) ($343,757.59) ($1,341,058.42) ($849,906.22) ($720,321.30) ($5,176,769.91) Forecast ($5,200,000.00) Monthly Forecast ($433,333.33)

44 2019 TRBAA Update Workpapers Page 3 of 38 Statement AU Page 1 of 1 Southern California Edison Company Revenue Credits Period II 2019 Line No. Month Wheeling High Voltage Low Voltage 1 January ($5,075,000.00) ($5,064,342.50) ($10,657.50) 2 February ($5,075,000.00) ($5,064,342.50) ($10,657.50) 3 March ($5,075,000.00) ($5,064,342.50) ($10,657.50) 4 April ($5,075,000.00) ($5,064,342.50) ($10,657.50) 5 May ($5,075,000.00) ($5,064,342.50) ($10,657.50) 6 June ($5,075,000.00) ($5,064,342.50) ($10,657.50) 7 July ($5,075,000.00) ($5,064,342.50) ($10,657.50) 8 August ($5,075,000.00) ($5,064,342.50) ($10,657.50) 9 September ($5,075,000.02) ($5,064,342.51) ($10,657.51) 10 October ($5,075,000.02) ($5,064,342.51) ($10,657.51) 11 November ($5,075,000.02) ($5,064,342.51) ($10,657.51) 12 December ($5,075,000.02) ($5,064,342.51) ($10,657.51) Total ($60,900,000.08) ($60,772,110.04) ($127,890.04)

45 2019 TRBAA Update Workpapers Page 4 of 38 Wheeling Revenue Received and Forecast -- Statement AU High Voltage Low Voltage Total Revenue Revenue Revenue Oct-17 (6,378,536.38) ($11,691.15) ($6,390,227.53) Nov-17 ($6,426,772.18) ($12,584.94) ($6,439,357.12) Dec-17 ($5,575,778.73) ($10,107.21) ($5,585,885.94) Jan-18 ($6,337,765.75) ($14,039.50) ($6,351,805.25) Feb-18 ($5,053,186.83) ($9,788.84) ($5,062,975.67) Mar-18 ($3,823,326.12) ($9,217.97) ($3,832,544.09) Apr-18 ($3,401,731.64) ($9,941.66) ($3,411,673.30) May-18 ($3,381,993.37) ($9,906.48) ($3,391,899.85) Jun-18 ($3,410,543.19) ($9,047.10) ($3,419,590.29) Jul-18 ($3,447,668.65) ($8,186.61) ($3,455,855.26) Aug-18 ($7,057,917.63) ($8,585.48) ($7,066,503.11) Sep-18 ($6,498,798.85) ($14,403.15) ($6,513,202.00) Total ($60,794,019.32) ($127,500.09) ($60,921,519.41) HV/LV % Split Forecast ($60,772,110.00) ($127,890.00) ($60,900,000.00) Monthly Forecast ($5,064,342.50) ($10,657.50) ($5,075,000.00)

46 2019 TRBAA Update Workpapers Page 5 of 38 Southern California Edison Company Electric Utility Cost of Service Calculation of Revised Transmission Revenue Balancing Account Adjustment For Wholesale Service Effective January 1, 2019 Statement BK Page 1 of 2 Period II 2019 Line No. Description Total High Voltage Low Voltage 1 Balance in TRBA on September 30, 2018 ($6,192,816) ($6,166,186) ($26,630) 2 Used for January 1, 2019 Rate 3 Including Interest 4 5 Forecast Wheeling Revenues ($60,900,000) ($60,772,110) ($127,890) 6 13 Forecast ETC Cost Differentials ($5,200,000) ($5,043,901) ($156,099) Revised Wholesale TRBAA Before Franchise Fees ($72,292,816) ($71,982,197) ($310,619) Adjustment for Franchise Fees at % ($665,506) ($662,647) ($2,859) Revised Wholesale TRBAA ($72,958,322) ($72,644,844) ($313,478)

47 2019 TRBAA Update Workpapers Page 6 of 38 Southern California Edison Company Electric Utility Cost of Service Calculation of Revised Transmission Revenue Balancing Account Adjustment For Retail Service Effective January 1, 2019 Period II 2019 Line No. Description Total Statement BK Page 2 of 2 1 Balance in TRBA on September 30, 2018 ($6,192,816) 2 Used for January 1, 2019 Rate 3 Including Interest 4 5 Forecast Wheeling Revenues ($60,900,000) 6 13 Forecast ETC Cost Differentials ($5,200,000) Revised TRBAA Before Franchise Fees and ($72,292,816) 16 Uncollectable Accounts Adjustment for Franchise Fees and ($839,558) 19 Uncollectable Accounts at % Revised TRBAA For End-Use Customers ($73,132,374)

48 2019 TRBAA Update Workpapers Page 7 of 38 Transmission Revenue Balancing Adjustment October November December January February March April May June July August September BEGINNING BALANCE (51,171,531.64) (48,645,215.20) (47,032,320.46) (44,916,496.22) (42,848,694.41) (40,526,585.64) (35,721,213.89) (30,529,070.56) (24,972,146.17) (19,410,752.42) (12,594,745.26) (6,239,241.61) AUTHORIZED REVENUES/ TRBAA Credits 9,426, ,238, ,382, ,050, ,750, ,292, ,926, ,267, ,745, ,747, ,437, ,674, Adjustment for FF&U 108, , , , , , , , , , , , Net TRBAA Credits 9,318, ,144, ,286, ,946, ,661, ,185, ,824, ,161, ,633, ,612, ,271, ,551, ISO Revenue - Wheeling (6,390,227.53) (6,439,357.12) (5,585,885.94) (6,351,805.25) (5,062,975.67) (3,832,544.09) (3,411,673.30) (3,391,899.85) (3,419,590.29) (3,455,855.26) (7,066,503.11) (6,513,202.00) Generator Interconnection Process Forfeited Deposits (3,148,476.91) LADWP ETC CAISO Billing 63, , , (1,677.33) (24,705.79) 162, , (80,202.35) (71,631.68) 281, , (117,644.05) Value of LADWP Returned Losses (465,030.22) (354,931.32) (303,902.76) (525,531.45) (251,407.25) (273,056.49) (264,411.59) (132,214.21) (272,125.91) (1,622,599.00) (893,375.16) (602,677.25) Total Transmission Revenue Credits (6,791,852.48) (6,531,326.96) (5,667,121.69) (6,879,014.03) (5,339,088.71) (3,943,154.07) (3,632,220.78) (3,604,316.41) (3,763,347.88) (4,796,913.68) (7,916,409.33) (10,382,000.21) Under(Over) Collection 2,526, ,612, ,619, ,067, ,322, ,242, ,192, ,556, ,870, ,816, ,355, , ENDING BALANCE (48,645,215.20) (47,032,320.46) (44,413,156.06) (42,848,694.41) (40,526,585.64) (35,283,904.89) (30,529,070.56) (24,972,146.17) (19,101,902.33) (12,594,745.26) (6,239,241.61) (6,069,413.55) AVERAGE BEG/END BAL (49,908,373.42) (47,838,767.83) (45,722,738.26) (43,882,595.32) (41,687,640.03) (37,905,245.27) (33,125,142.22) (27,750,608.36) (22,037,024.25) (16,002,748.84) (9,416,993.44) (6,154,327.58) INTEREST RATE 4.21% 4.21% 4.21% 4.25% 4.25% 4.25% 4.47% 4.47% 4.47% 4.69% 4.69% 4.69% INTEREST (175,095.21) (167,834.34) (160,410.61) (155,417.53) (147,643.73) (134,247.74) (123,391.15) (103,371.02) (82,087.92) (62,544.08) (36,804.75) (24,053.16) ENDING BALANCE w/ Interest (48,820,310.41) (47,200,154.80) (44,573,566.66) (43,004,111.94) (40,674,229.36) (35,418,152.64) (30,652,461.71) (25,075,517.19) (19,183,990.24) (12,657,289.34) (6,276,046.36) (6,093,466.71) July Interest (62,544.08) August Interest (36,804.75) Ending Balance for Ratemaking (6,192,815.54)

49 LDWP Sylmar LADWP - SCE Exchange Agreement UAC027 Loss Reimbursement October-17 DATE PST Sunday, October 01, Monday, October 02, Tuesday, October 03, Wednesday, October 04, Thursday, October 05, Friday, October 06, Saturday, October 07, Sunday, October 08, Monday, October 09, Tuesday, October 10, Wednesday, October 11, Thursday, October 12, Friday, October 13, Saturday, October 14, Sunday, October 15, Monday, October 16, Tuesday, October 17, Wednesday, October 18, Thursday, October 19, Friday, October 20, Saturday, October 21, Sunday, October 22, Monday, October 23, Tuesday, October 24, Wednesday, October 25, Thursday, October 26, Friday, October 27, Saturday, October 28, Sunday, October 29, Monday, October 30, Tuesday, October 31, TRBAA Update Workpapers Page 8 of 38 LDWP Sylmar Monthly Total MWh