이미지
On this page you will find information on SCE's tariffs for wholesale customers under the jurisdiction of the Federal Energy Regulatory Commission (FERC): the Transmission Owner Tariff and the Wholesale Distribution Access Tariff.
- The Transmission Owner Tariff provides, in conjunction with the California Independent System Operator ("CAISO") tariff, certain terms and conditions for service utilizing SCE's transmission facilities that have been turned over to the operational control of the CAISO.
- The Wholesale Distribution Access Tariff provides the terms and conditions for service utilizing SCE's distribution facilities that are under its operational control.
In this section, SCE posts its currently effective rates for transmission service and formula transmission rate information.
Attention: For information on the requirements and processes for interconnecting projects to SCE’s electric system, please visit SCE's grid interconnection webpage at: on.sce.com/gridinterconnections.
Currently Effective FERC Wholesale and Retail Transmission Rates
- FERC Wholesale Transmission Rates
- FERC Retail Transmission Rates
- FERC Transmission Rate Historical Information
Tariffs
SCE Transmission Owner Tariff
Transmission Owner Tariff (TOT) Combined - effective May 1, 2026
- TOT Tariff, Title Page (15.0.0)
- Table of Contents, 18.0.0 – effective June 15, 2021
- Section 1, Preamble, 0.0.0 – effective May 1, 2019
- Section 2, Effective Date, 0.0.0 – effective May 1, 2019
- Section 3, TO Definitions, 16.0.0 – effective May 1, 2026
- Section 4, Eligibility, 0.0.0 – effective May 1, 2019
- Section 5, Access Charges and Transmission Rates, 2.0.0 – effective May 1, 2019
- Section 6, Ancillary Services, 0.0.0 – effective May 1, 2019
- Section 7, Billing and Payment, 0.0.0 – effective May 1, 2019
- Section 8, Obligation to Interconnect or Construct Transmission Expansion & Facility Upgrades, 18.0.0 – effective June 15, 2021
- Section 9, Expansion Process, 0.0.0 – effective May 1, 2019
- Section 10, Interconnection Process, 0.0.0 – effective May 1, 2019
- Section 11, Uncontrollable Forces and Indemnification, 0.0.0 – effective May 1, 2019
- Section 12, Regulatory Filings, 0.0.0 – effective May 1, 2019
- Section 13, Creditworthiness, 0.0.0 – effective May 1, 2019
- Section 14, Disputes, 0.0.0 – effective May 1, 2019
- Section 15, Recovery of Reliability Service Costs, 0.0.0 – effective May 1, 2019
- Section 16, Miscellaneous, 0.0.0 – effective May 1, 2019
- Appendix I, Transmission Revenue Requirement, 22.0.0 – effective January 1, 2026
- Appendix II, Charges for Wholesale Transmission Services, 8.0.0 – effective May 1, 2019
- Appendix III, Transmission Rates for End-Use Service, 32.0.0 – effective January 1, 2026
- Appendix IV, Rates for Certain Ancillary Service Bids, 0.0.0 – effective May 1, 2019
- Appendix V, Notices, 0.0.0 – effective May 1, 2019
- Appendix VI, Reliability Services Rate Schedule, 22.0.0 – effective January 1, 2026
- Appendix VII, Interconnection Procedures in Effect Prior to July 1, 2005, 0.0.0 – effective May 1, 2019
- Appendix VIII, Not Used, 5.0.0 – effective May 1, 2019
- Appendix IX, Formula Rate, 0.0.0 – effective May 1, 2019
- Appendix X, Rate Schedule for Recovery of Costs, 18.0.0 – effective January 1, 2026
- Appendix XI, Appendix XI - TMCR, 16.0.0 – effective January 1, 2024
- Appendix XII, Stakeholder Review Process, 0.0.0 - effective September 23, 2020
- Appendix XIII, Letter Agreement, 2.0.0 - effective June 15, 2021
- Appendix XIV, West of Devers Formula Rate – effective May 5, 2021
SCE Wholesale Distribution Access Tariff
Wholesale Distribution Access Tariff (WDAT) Combined* - Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Title Page, 15.0.0 – effective May 1, 2019
- Table of Contents, 21.0.0 – Pending SCE's further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Section 1, Preamble and Applicability, 16.0.0 – effective October 30, 2019
- Section 2, Definitions, 20.0.0 - effective June 15, 2021
- Section 3, Ancillary Services, 15.0.0 – effective June 15, 2021
- Section 4, Not Used, 15.0.0 – effective May 1, 2019
- Section 5, Billing and Payment, 15.0.0 – effective May 1, 2019
- Section 6, Regulatory Filings, 15.0.0 – effective May 1, 2019
- Section 7, Uncontrollable Forces and Indemnification, 15.0.0 – effective May 1, 2019
- Section 8, Creditworthiness, 15.0.0 – effective May 1, 2019
- Section 9, Dispute Resolution, 15.0.0 – effective May 1, 2019
- Section 10, Governing Law, 15.0.0 – effective May 1, 2019
- Section 11, Not Used, 15.0.0 – effective May 1, 2019
- Section 12, Nature of Distribution Service, 17.0.0 - Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Section 13, Service Availability, 16.0.0 – effective October 30, 2019
- Section 14, Distribution Customer Responsibilities, 17.0.0 – effective October 30, 2019
- Section 15, Procedures for Arranging Distribution Service, 20.0.0 – Pending FERC Order, requested effective date August 15, 2024
- Section 16, Additional Study Procedures For Distribution Service Re, 17.0.0 – effective October 30, 2019
- Section 17, Procedures if the Distribution Provider is Unable to Co, 15.0.0 – effective May 1, 2019
- Section 18, Not Used, 15.0.0 – effective May 1, 2019
- Section 19, Not Used, 15.0.0 – effective May 1, 2019
- Section 20, Metering and Power Factor Correction at the Point of Receipt or the Point of Delivery, 15.0.0 – effective May 1, 2019
- Section 21, Compensation for Distribution Service, 16.50.0 - effective October 30, 2019
- Section 22, Stranded Cost Recovery, 15.0.0 – effective May 1, 2019
- Section 23, Not Used, 15.0.0 – effective May 1, 2019
- Section 24, Standards of Conduct, 15.0.0 – effective May 1, 2019
- Attachment A Form of Service Agreement for Wholesale Distribution Service, 21.0.0 - Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Attachment B Technical and Operational Implementation of the Tariff for Wholesale Distribution Load, 15.0.0- effective May 1, 2019
- Attachment C Technical and Operational Implementation of the Tariff for Generation Resources, 16.0.0 - effective October 30, 2019
- Attachment D Methodology for Completing a System Impact Study, 15.0.0 - effective May1, 2019
- Attachment E Index of Wholesale Distribution Service Customers, 15.0.0 - effective May 1, 2019
- Attachment F Standard Large Generator Interconnection Procedures, 15.0.0 - effective May 1, 2019
- Attachment G Standard Small Generator Interconnection Procedures, 15.0.0 - effective May 1, 2019
- Attachment H Clustering Large Generator Interconnection Procedures, 15.0.0 - effective May 1, 2019
- Attachment I Generator Interconnection Procedures, 27.0.0 - Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 1 Interconnection Request for a Generating Facility, 22.0.0 - effective December 21, 2022
- Appendix 2 Procedures for Transitioning Interconnection Requests, 15.1.0 - effective May 1, 2019
- Appendix 3 Generator Interconnection Study Process Agreement for Cluster Study Process, 22.0.0 - effective March 26, 2024
- Appendix 4 Independent Study Process Study Agreement, 19.0.0 - effective March 26, 2024
- Appendix 5 Generator Interconnection Agreement CSP, 15.0.0 - effective May 1, 2019
- Appendix 5.1 Generator Interconnection Agreement CSP for QC4, 15.0.0 - effective May 1, 2019
- Appendix 5.2 Generator Interconnection Agreement CSP, 21.0.0 - effective December 21, 2022
- Appendix 6 Generator Interconnection Agreement Independent Study Process, 15.0.0 - effective May 1, 2019
- Appendix 6.1 Generator Interconnection Agreement ISP for QC4, 15.0.0 - effective May 1, 2019
- Appendix 6.2 Generator Interconnection Agreement ISP for QC5, 21.0.0 - effective December 21, 2022
- Appendix 7 Generator Interconnection Agreement Fast Track Process, 21.0.0 - effective December 21, 2022
- Appendix 8 Certification Codes and Standards, 15.0.0 - effective May 1, 2019
- Appendix 9 Certification of Small Generator Equipment Packages, 15.0.0 - effective May 1, 2019
- Appendix 10 Application, Procedures, and Terms and Conditions, 15.0.0 - effective May 1, 2019
- Appendix 11 Letter Agreement, 2.0.0 - effective June 15, 2021
- Attachment J, Rate Schedule for Recovery of Costs, 5.0.0 - effective January 1, 2026
- Attachment K, Rate Schedule for Recovery of Costs Associated with Charging Distribution Service, 2.50.0 - effective October 30, 2019
- Attachment L, Generator Interconnection Agreement Qualifying Facility, 3.0.0 - Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Attachment M, WDAT Resource Interconnection Procedures (3.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 1 to Attach M, Interconnection Request Form (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 2 to Attach M, Cluster Study Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 3 to Attach M, Facilities Study Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 4 to Attach M, Cluster GIA (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 5 to Attach M, Fast Track GIA (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 6 to Attach M, Certification Codes (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 7 to Attach M, Certification of Equip Pkgs (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 8 to Attach M, 10kW Inverter (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 9 to Attach M, Letter Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 10 to Attach M, Two Party AS Study Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 11 to Attach M, MultiParty AS Study Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 12 to Attach M, Two-Party AS Facilities Construction Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
- Appendix 13 to Attach M, MultiParty AS Facilities Construction Agreement (0.0.0) – Pending SCE’s further compliance filing per 11/20/25, FERC Order, requested effective date August 15, 2024
TO Tariff Activities
- Formula Transmission Rate Filings
- Morongo WOD Formula Rate Filings
- Transmission Project Review Process (TPR Process)
- Stakeholder Review Process (SRP)
- Transmission Maintenance and Compliance Review (TMCR)
Environmental Services Work
- TOT - [Form of] Environmental Services Costs Declaration
- WDAT - [Form of] Environmental Services Cost Declaration
Contact Us
Should you have any questions regarding SCE's Open Access Information, please contact David Schiada in SCE's Regulatory Operations:
Email: David.Schiada@sce.com
If you have questions regarding SCE's generation interconnection processes, please use the contact information below:
Email: interconnectionQA@sce.com
Phone: (909) 274-1106
Mailing Address:
Grid Contract Development & Management
Southern California Edison
2244 Walnut Grove Ave
PO Box 945
Rosemead, CA 91770