2015 General Rate Case

Transcription

1 Application No.: Exhibit No.: Witnesses: A SCE-0, Vol. 0 R. Woods E. Takayesu (U -E) 01 General Rate Case ERRATA Transmission and Distribution (T&D) Volume System Planning Capital Projects Before the Public Utilities Commission of the State of California Rosemead, California November 01

2 SCE-0: Transmission and Distribution Volume 0-System Planning Capital Projects Table Of Contents Section Page Witness I. SYSTEM PLANNING CAPITAL PROJECTS...1 R. Woods E. Takayesu A. Introduction And Overview...1 B. C. D. Electric System Overview GRC Authorization and Recorded Costs... Planning Process Overview of Project Planning... Transmission Planning Processes... Generator Interconnection Process... Load Growth Planning Process... a) b) c) Development Of Peak Load Forecasts... Identification Of System Requirements...1 Development of Alternatives and Project Selection...1. Construction Licensing under G.O. -D...1 E. Transmission & Interconnection Planning Projects Grid Reliability Projects...1 (1) () () () BC/SJV RAS Expansion (Project #0)...0 Victor 0/ kv Substation (Project #0)...1 Rio Hondo 0/ kv Substation (Project #01)... East Kern Wind Resource Area (EKWRA) (Project #0)... -i-

3 SCE-0: Transmission & Distribution Volume 0 - System Planning Capital Projects List Of Figures (Continued) Figure Page Figure I-1 Capacitor Automation Program Capital Expenditures Recorded 00-01/Forecast WBS Element CET-PD-LG-CV (Constant 01 and Nominal $000)... Figure I-1 Circuit Automation Program Capital Expenditures Recorded 00-01/Forecast WBS Element CET-PD-OT-CI (Constant 01 and Nominal $000) s and CIT-00-OP-NS...0 Figure I-1 Substation Load Information Monitor Program Capital Expenditures Recorded 00-01/Forecast WBS Element CET-OT-OT-AT (Constant 01 and Nominal $000)...1 -x-

4 SCE-0: Transmission & Distribution Volume 0 - System Planning Capital Projects List Of Tables Table Page Table I-1 System Planning Capital Projects Expenditure Summary CPUC and FERC Jurisdictional (Nominal $000)... Table I- System Planning Capital Projects Expenditure Summary CPUC Jurisdictional (Nominal $000)... Table I- Operating Date Changes for Projects Included in 01 GRC to Current Forecast... Table I- Licensing and Exemption Status Distribution Substation Plan...1 Table I- Licensing and Exemption Status Subtransmission Lines Plan...1 Table I- Licensing and Exemption Status A-Bank Plan...1 Table I- Transmission & Interconnection Planning Projects Capital Expenditure Summary (Nominal $000)...1 Table I- Grid Reliability Projects Expenditure Summary CPUC and FERC Jurisdictional (Nominal $000)...0 Table I- Transmission System Generation Interconnection Projects Expenditure Summary CPUC and FERC Jurisdictional (Nominal $000)... Table I- Load Growth Planning Programs Capital Expenditure Summary (Nominal $000)... Table I- A-Bank Plan Capital Expenditure Summary (Nominal $000)... Table I-1 Subtransmission Lines Plan Capital Expenditure Summary (Nominal $000)... Table I-1 Subtransmission VAR Plan Capital Expenditure Summary (Nominal $000)... Table I-1 Distribution Substation Plan Capital Expenditure Summary (Nominal $000)... Table I-1 Land Held for Future Use Capital Expenditure Summary (Nominal $000)... Table I-1 Substation Equipment Replacement Program Capital Expenditure Forecast WBS Element CET-ET-LG-SU (Nominal $000)... Table I-1 DSP Circuit Work Capital Expenditures WBS Elements CET-ET-LG-PF and CET-ET-LG-CI (Nominal $000)... Table I-1 New Distribution Circuit Capital Expenditures WBS Elements CET-ET-LG- PF and CET-ET-LG-CI (Nominal $000)...0 Total Company -xi-

5 Substation Equipment Replacement Program (SERP). DSP Circuits. Distribution Plant Betterment. Distribution VAR Plan. Capacitor Automation Program. Circuit Automation Program. Substation Load Information Monitor Program (SLIM) The Generator Interconnection Program includes projects and capital expenditures driven by requests from generation project developers who choose to have SCE construct the facilities necessary to interconnect their projects to the SCE grid. The Added Facilities projects include projects SCE constructs when a load side customer requests non-standard service. These projects may include portions that are customer cost responsibility and portions that are rate payer funded. Total costs for these projects are shown below in Table I-1 and CPUC-jurisdictional costs are shown below in Table I-. Table I-1 System Planning Capital Projects Expenditure Summary CPUC and FERC Jurisdictional (Nominal $000) Line No. Project Category Prior Total 1 Transmission & Interconnection Planning Projects,0,0 1,0, 0, 1, 0,1,1,,0 Load Growth Planning Programs,0 1, 1, 1,1 0,0, 1,, System Improvement/Reinforcement Programs,0 1,,0, 1,1,,1 Generator Interconnection Program,,,,1,1,000 1, Added Facilities Projects 1,,,,0 1, 1,1,1 Total System Planning Capital Projects,, 1,, 1,1,, 1,1 1,1,0,,1 1,,,0 1,0,1,,, 1,1, 1,1,, 1,0 1,0,,

6 ,1 1,,,0 1,0,1, Table I- System Planning Capital Projects Expenditure Summary CPUC Jurisdictional (Nominal $000) Line No. Project Category Prior Total 1 Transmission & Interconnection Planning Projects,0,0, 1, 1,, Load Growth Planning Programs 0, 1,, 1,1,1, 1,,01 System Improvement/Reinforcement Programs,0 1,,0, 1,1,,1 Generator Interconnection Program,,,,1,1,000 1, Added Facilities Projects 1,,,,0 1, 1,1,1 Total System Planning Capital Projects 0,0,,,, 1,,,1 1 B. Electric System Overview 0,0 1,,,0,1 1,,,0 Figure I-1 below is a simplified diagram of our electric power system. It shows the flow of electricity from generating plants to end-use customers. I describe the system below. Figure I-1 Simplified System Diagram

7 () Valley C 00/ kv Substation (Project #00) Valley 00/ kv Substation is located in the city of Romoland and serves the areas of Glen Ivy, Lake Elsinore, Murrieta, Perris, Romoland, Sun City, Temecula, Winchester, and unincorporated areas of Riverside County. SCE has identified that the circuit breakers on the kv bus section at the Valley 00/ kv Substation exceed their short-circuit duty equipment rating. The project scope is to replace a total of sixteen kv circuit breakers at Valley 00/ kv Substation with higher short circuit duty rated units. The operating date is June 01 with a total project cost of $.0 million. 0 This project was included in SCE s 01 GRC filing with a December 0 operating date but was subsequently moved to June 01. There are no alternatives to this project. The proposed project is the only viable technical solution. () Ellis C 0/ kv Substation (Project #01) Ellis 0/ kv Substation is located in the city of Huntington Beach and serves communities in north Orange County. By 01, the A kv bus section at Ellis 0/ kv Substation is projected to exceed its capacity limit due to continuing load growth in the area. The project scope is to install a new 0 MVA transformer bank on the C kv bus section at Ellis 0/ kv Substation (thereby increasing total transformer capacity from 0 MVA to 1 MVA at the station), rearrange various kv subtransmission lines to permanently transfer four substations from the A kv bus section to the C kv bus section, and replace the north and south 0 kv buses with 1 kcmil ACSR. Without the project, the loading on the A kv bus section at Ellis 0/ kv Substation exceeded the substation s capacity limit in 0 under normal operating conditions. This project has been separated into two phases. Phase 1 includes the installation of a new 0 MVA transformer and the subtransmission lines rearrangement. Phase includes replacing the north and south 0 kv buses. This project was included in SCE s 01 GRC filing with a June 0 operating date but was subsequently moved to June 0 (Phase 1) and June 01 (Phase ) due to delays in acquiring the necessary permits to construct the project. Phase 1 had an operating date of June 0 and Phase has an operating date of July 01. The total project cost is $. million. 1 SCE has identified one alternative to this project to install a new 0 MVA transformer bank at Johanna 0/ kv Substation and construct approximately 1. miles of new 0 Refer to workpaper entitled Valley C 00/ kv Substation (Project #00). 1 Refer to workpaper entitled Ellis C 0/ kv Substation (Project #01). outage priority to the Del Amo-Ellis Loop-in Project needed due to SONGS shutdown. 1

8 kv subtransmission line to permanently transfer Gisler /1 kv Substation and Talbert /1 kv Substation from the Ellis kv system to the Johanna kv system. The total estimated cost of this alternative is $. million. The proposed project was selected as the least cost alternative. () Santiago 0/ kv Substation (Project #0) Santiago 0/ kv Substation is located in the city of Irvine and serves communities in south Orange County. By the end of 01, Santiago 0/ kv Substation is projected to approach its capacity limit due to continuing load growth in the area. The project scope is to install the existing spare 0 MVA transformer bank at Santiago 0/ kv Substation as a permanent unit (thereby increasing total transformer capacity from 0 MVA to 1 MVA at the station) and split the Santiago kv system. Without the project, the loading at Santiago 0/ kv Substation is projected to reach. percent of the substation s capacity limit by the end of 01 under normal operating conditions. The operating date is December 01 with a total project cost of $.01 million. This project was included in SCE s 01 GRC filing with a June 0 operating date but was subsequently moved to December 01 due to delays in acquiring the necessary permits to construct the project. SCE has identified one alternative to this project to install a new 0 MVA transformer bank at Viejo 0/ kv Substation, construct approximately 1. miles of new kv subtransmission line, and rebuild approximately.0 miles of existing kv subtransmission line to permanently transfer Borrego /1 kv Substation, Moulton /1 kv Substation, and Niguel /1 kv Substation from the Santiago kv system to the Viejo kv system. The total estimated cost of this alternative is $. million. The proposed project was selected as the least cost alternative. () La Cienega 0/ kv Substation (Project #0) La Cienega 0/ kv Substation is located in the city of Los Angeles and serves communities in west Los Angeles County. By 01, La Cienega 0/ kv Substation is projected to approach its capacity limit due to continuing load growth in the area. The project scope is to install a new 0 MVA transformer bank at La Cienega 0/ kv Substation (increasing total transformer capacity from 0 MVA to 0 MVA at the station) and upgrading the substation automation to SA. Without the project, the loading at La Cienega 0/ kv Substation is projected to reach. percent of the substation s capacity limit by 01 under normal operating conditions. This project is includes installing a new 0 MVA transformer bank and upgrading the substation automation Refer to workpaper entitled Santiago 0/ kv Substation (Project #0). in order to be more cost effective by designing and constructing project concurrent with other adjacent projects.

9 Table I-1 Distribution Substation Plan Capital Expenditure Summary Total Company (0% CPUC-Jurisdictional Nominal $000) Line Operating Project # Project Name No. Date Prior Total 1 0 Las Lomas /1 kv Substation Nov 01,1, ,1 0 Mascot /1 kv Substation Dec 01, , 0 Triton /1 kv Substation Apr 01,1, ,1 0 Pepper /1 kv Substation Jun 01,, ,1 00 El Sobrante /1 kv Substation Jun 01,1, , 0 Roadway /1 kv Substation Jun 01,, ,00 00 Bloomington /1 kv Substation Jun 01, , 00 Fillmore /1 kv Substation Jun 01,00 1, ,01 0 Devers /1 kv Substation Jun 01,, , 00 La Habra Project /1 kv Substation Jun 01,0, , 00 Estrella /1 kv Substation Jun 01 1,, , 1 0 Carodean /1 kv Substation Jun 01,0, , 1 0 Delano /1kV Substation Jun 01,00, ,0 1 0 Glen Avon /1 kv Substation Jun 01, ,0 1 0 Lampson /1 kv Substation Jun ,, , 1 01 Downs /1 kv Substation Jun 01,1, 1, , 1 0 Pebbly Beach 1/. kv Substation Jun , Del Amo Jr /1 kv Substation Jun ,1, - - -, 1 0 La Palma /1 kv Substation Jun 01,, , Lark Ellen /1 kv Substation Jun 01 1, 1, - - -, 1 00 Colonia /1 kv Substation Jun ,, - -, Canyon /1 kv Substation Jun 01 0, 1, 0 - -, 00 San Dimas /1 kv Substation Jun , 00 Orange /1 kv Substation Jun 01-1,0, - - 1,0 0 Lakeview /1 kv Substation Jun 01,0,0,,,0 -,0 00 Yokohl /1 kv Substation Jun 01,,00 0,, -,0 01 Banducci /1 kv Substation Jun 01,,0, 1,,1 -, 0 Greenhorn /. kv Substation Jun ,0 1, -, 0 Mainframe /.1 kv Substation Jun 01 -,, 1,,1 -, 0 01 Safari /1 kv Substation Jun ,, 1,0 -, 1 0 Circle City /1 kv Substation - Phase 1 Jun 01 -, 1,, -,1 0 Falcon Ridge /1 kv Substation Dec 01,1,,0,, -, Total Distribution Substation Plan 1,, 1,1 1,1 1, - 0, 1 The capital cost shown for each project in the table above is for work required inside the substation (e.g., the addition of a B-bank transformer), new distribution circuits associated with a B- bank transformer addition, and any telecommunications or right of way and land components of the project. The costs for the distribution circuits that are not associated B-bank transformer addition projects are aggregated and budgeted as a separate item entitled DSP Circuits and are included in this portion of my testimony for reference and justification purposes only. These circuit costs are discussed separately in the System Improvement/Reinforcements Program portion of my testimony. We have identified DSP projects with project costs equal to or greater than $1 million. A description and justification for each of these projects is provided below. The total cost for these projects is $0. million of which $. million is CPUC-jurisdictional cost forecast from 01 to 01.

10 Lakeview areas. The temporary Model Pole-Top /1 kv Substation 1 is projected to provide capacity to serve the load which is in excess of the capacity of Nuevo substation until Lakeview Substation is complete. Upon completion of the Lakeview Substation project, both Nuevo and Model P.T. Substations would be decommissioned. Lakeview Substation will provide capacity to serve the existing demand, as well as capacity to serve future developments, and provide enhanced reliability and operational flexibility to the Electrical Needs Area. The project scope is to construct a new substation consisting of two MVA, /1 kv transformer banks and four new 1 kv distribution circuits. Without the project, the loadings at Nuevo /1 kv Substation is projected to reach 1. percent of the substation s capacity limit by 01 under normal operating conditions. The operating date is June 01 with a total project cost of $.0 million. 1 This project was included in SCE s 01 GRC filing with a June 01 operating date but was subsequently moved to June 01 due to licensing delays. SCE has identified one alternative to this project to construct a new MVA, /1 kv substation in the Nuevo and Lakeview areas with four new 1 kv distribution circuits and three new kv distribution lines to feed the new substation. The alternative analysis was included in the PEA (Application A ) filed September 1, 0. The proposed project was selected because it satisfies all of the project objectives. The total estimated cost of this alternative is $.1 million. This alternative does not eliminate the need for Lakeview /1 kv Substation, but instead only defers the need by 1 years (from 01 to 0). This alternative does not adequately meet longterm projected electrical load requirements in the Nuevo and Lakeview areas. In addition, this alternative would result in reduced operating flexibility and reliability for the area as compared to the proposed project due to the considerably longer source lines needed to serve the substation (approximately twenty-five miles of kv lines to feed the /1 kv substation versus approximately three miles of kv lines to feed Lakeview /1 kv Substation). For these reasons, the proposed project was selected as the preferred alternative. () Yokohl /1 kv Substation (Project #00) Yokohl /1 kv Substation is a new planned substation to be located in the Yokohl Ranch area of the San Jacinto Valley. Yokohl Substation is planned to meet future load of Joaquin 1 Model Pole-Top /1 kv Substation is a temporary facility constructed as an interim measure to meet the immediate capacity needs in the Nuevo and Lakeview areas. 1 Refer to workpaper entitled Lakeview /1 kv Substation (Project #0). 0

11 Table I-1 Land Held for Future Use Capital Expenditure Summary (0% CPUC-Jurisdictional Nominal $000) Line Operating Project # Project Name No. Date Prior Total 1 0 Valley South Jun ,, -, 0 Circle City Substation Jun ,1 -,1 Total Other Transmission Planning Projects ,1,0-1, G. System Improvement/Reinforcement Programs seven The System Improvement/Reinforcement Programs include six categories in which projects are identified and cost forecasts are developed. Descriptions of these categories and forecasts are included below. 1. Substation Equipment Replacement Program (SERP) Blanket Budget Item, WBS Element CET-ET-LG-SU The Substation Equipment Replacement Program (SERP) evaluates the adequacy of substation terminal equipment and system protection equipment. Specifically, the SERP identifies substations where short-circuit duty levels exceed equipment ratings as well as system ground source requirements essential to the provision of safe, reliable service. Typical SERP projects include the replacement of circuit breakers with higher short-circuit duty rated units, 1 projects to reduce short circuit duty levels at substations, or the addition of ground banks for proper grounding under normal and contingency conditions. SERP projects are necessary for safe operation and to avoid equipment damage during normal, contingency, or faulted conditions. Figure I- below, shows recorded and forecast expenditures for SERP. 1 Short-Circuit Duty Abnormal current levels an electrical system will experience during faulted conditions, producing considerable thermal and mechanical stresses in electrical equipment.

12 Figure I-1 Circuit Automation Program Capital Expenditures Recorded 00-01/Forecast WBS Element CET-PD-OT-CI and CIT-00-OP-NS (0% CPUC-Jurisdictional Constant 01 and Nominal $000) s $1,000 $1,000 $,000 $,000 $,000 $,000 $,000 $ Nominal $,,0,0,,,000,1,0,1, Constant 01 $,1,1 1,,,,,00,00,00,00 Nominal $ Constant 01 $ Forecast 1. Substation Load Information Monitor Program, WBS CET-OT-OT-AT The Substation Load Information Monitor (SLIM) Program includes the work related to installation of equipment for substation load monitoring. This program will provide SCE with data to aid in circuit and substation transformer planning as well as improve real-time grid operations for substations that do not currently have substation automation systems. In 01 we plan to add load monitoring to ten substations and twenty per year thereafter through 01. Figure I-1 below, shows forecast expenditures for the SLIM Program. In 01 constant dollars, average forecast expenditures over the period are $1.0 million per year. 1 $, $,0 $,1 $, $,1 $, $, $, $, $,0 $, $, $1,1 $, $,1 $,0 $, $, $, $, 1 Refer to workpaper entitled Substation Load Information Monitoring Workpaper for additional detail. 0

13 SOUTHERN CALIFORNIA EDISON COMPANY QUALIFICATIONS AND PREPARED TESTIMONY OF ROBERT G. WOODS Q. Please state your name and business address for the record. A. My name is Robert G. Woods, and my business address is Three Innovation Way, Pomona, California, 1. Q. Briefly describe your present responsibilities at the Southern California Edison Company. A. I am the Director of Electric System Planning for the Engineering and Technical Service (E&TS) within Southern California Edison Company s Engineering and Technical Service (ET&S) organization. Electric System Planning is responsible for transmission, distribution, substation subtransmission planning, interconnection studies and customer support. Q. Briefly describe your educational and professional background. A. I hold a Bachelor of Science degree in Electrical Engineering from California State University of Long Beach. I joined Southern California Edison in 1 and have held a variety of planning, engineering, and management positions since. I have been in my current position since July, 0. Q. What is the purpose of your testimony in this proceeding? A. The purpose of my testimony in this proceeding is to sponsor Exhibit SCE-0, Volume, entitled Transmission and Distribution - System Planning Capital Projects as identified in the Table of Contents thereto. Q. Was this material prepared by you or under your supervision? A. Yes, it was. Q. Insofar as this material is factual in nature, do you believe it to be correct? A. Yes, I do. Q. Insofar as this material is in the nature of opinion or judgment, does it represent your best judgment? A. Yes, it does. Q. Does this conclude your qualifications and prepared testimony? A. Yes, it does. A-1

14 SOUTHERN CALIFORNIA EDISON COMPANY QUALIFICATIONS AND PREPARED TESTIMONY OF ERIK T. TAKAYESU Q. Please state your name and business address for the record. A. My name is Erik T. Takayesu, and my business address is Three Innovation Way, Pomona, California, 1. Q. Briefly describe your present responsibilities at the Southern California Edison Company. A. I am the Director of Electric System Planning within Southern California Edison Company s Transmission & Distribution (T&D) organization. Electric System Planning is responsible for planning the future needs of the distribution and transmission system, sponsoring projects that expand and reinforce the grid, and facilitating the interconnection of renewable distributed generation for meeting the corporate goals of safe, affordable and reliable delivery of energy to our customers.. Q. Briefly describe your educational and professional background. A. I hold a Bachelor of Science degree in Electrical Engineering from California State University of Long Beach, and a masters degree in Organizational Leadership From Gonzaga University. I joined Southern California Edison in and have held a variety of operational, planning, engineering, and management positions since. Prior to my current position I was the Principal Manager of Distribution Engineering. I have been in my current position since January, 01. Q. What is the purpose of your testimony in this proceeding? A. The purpose of my testimony in this proceeding is to sponsor Exhibit SCE-0, Volume, entitled System Planning Capital Projects. Q. Was this material prepared by you or under your supervision? A-1

15 1 A. No, Robert Woods was the initial sponsor of the testimony when it was submitted in November 01. I have reviewed the testimony and adopt the testimony as my own. Q. Insofar as this material is factual in nature, do you believe it to be correct? A. Yes, I do. Q. Insofar as this material is in the nature of opinion or judgment, does it represent your best judgment? A. Yes, it does. Q. Does this conclude your qualifications and prepared testimony? A. Yes, it does. A-