Connecting to Our Electrical System

Welcome to Southern California Edison Grid Interconnections

The information on this page is intended to help our customers understand the requirements and processes for interconnecting projects to SCE’s electric system.

You can navigate through the sections below or you can get started by reviewing our introduction to SCE’s Generator Interconnection Processes.



SCE is preparing for the launch of a new, centralized billing system that will replace our current system in April 2021. Projects requiring a Meter Service Request (“MSR”) for Net Generation Output Meters (“NGOM”), Generation Meter Adapters (“GMA”), or new meter installation will experience a potential delay of 3 weeks for installation.

Please make note of these two important dates:

March 12th – The freeze period will begin; MSR’s will not be routed internally as of that date. Pending installations must be completed before March 17th; installation appointments will not be able to be scheduled during the freeze period.

April 6th – Anticipated go-live date. Cut-over period ends. New MSR’s can be generated and installation appointments can begin to be scheduled.

SCE strongly recommends contractors time their interconnection submittals to account for this rollout.


  • Annual Application Window for an Increase in As-Available Charging Distribution Service is open January 1-15. Please see our Wholesale Distribution Access Tariff Page for more information
  • Study Report Delay: Issuance of the Queue Cluster 13 Phase I study reports have been delayed until 1/25/2021. Cluster participants have been notified via email.
  • As of Wednesday, December 18th, 2019, all-new Rule 21 Non-Export Interconnection Requests are being processed using our new Grid Interconnection Processing Tool (GIPT).
    • A User Guide and Training videos are available to help customers with new functionality implemented on August 24, 2020.
    • If you have previously submitted requests via the PowerClerk tool(PCI), please continue to access those requests in PCI.
    • For Rule 21 Non-Export requests submitted in GIPT you will continue use GIPT throughout the lifecycle of your project.
    • The Interconnection Request fee is also being requested online via ACH payment using an ePay module within GIPT. More information is in the User Guide linked above or contact InterconnectionsQ& for payment questions.
    • For password assistance, please see the following: How to Reset Password.
  • Installing a Rule 21 Non-Export Energy Storage system sized less than or equal to 10kW?
  • WDAT Queue Cluster Window #14 ("QC14"), Opening Date: Thursday, April 1, 2021, Closing Date: Friday, April 30, 2021
    • CAISO Queue Cluster application window pursuant to the CAISO Tariff Appendix DD: The Cluster Application Window will open on April 1 and close on April 15 of each year. If any date set forth is not a Business Day, then the applicable date shall be the next Business Day. If this website information differs from the CAISO Tariff or a CAISO market notice, the CAISO date shall prevail
  • Please see the Wholesale Distribution Access Tariff section of this website for information regarding tariff updates effective October 30, 2019
  • Distribution Group Study (DGS) Application Window #14, Opening Date: Monday, March 1, 2021. Closing Date: Wednesday, March 31, 2021. For more information, view SCE’s Rule 21 page.
  • CAISO’s Distributed Generation Deliverability (DGD) Process. Information and prior years’ DGD allocation results are available on our page regarding Interconnections to the CAISO. Navigate and expand the following header for additional information: CAISO’s Distributed Generation Deliverability Assignment Application Window.

DISCLAIMER: The guidelines in this section are provided with the intent to help SCE’s customers understand SCE’s Interconnection Procedures. However, in the case of discrepancies with SCE’s rules, such tariffs and regulations will prevail.