SCE Solar Interconnection: Timeline and Tracker
Southern California Edison interconnects solar across a large and dense service area, so its queue volume is high and its process is heavily standardized. For installers, the win is getting the application clean the first time so it never drops into manual review.
Who is SCE, and where does it operate?
SCE is an investor-owned utility serving much of Southern California outside the City of Los Angeles and the SDG&E footprint — a territory spanning roughly 50,000 square miles across the Inland Empire, the San Gabriel Valley, Orange County, and beyond. Like other IOUs, its interconnection and net billing terms fall under CPUC tariffs.
The interconnection process
- 1.Installers typically submit the SCE interconnection and net metering application online once the system design is locked, including the inverter and module details SCE uses to validate the design.
- 2.SCE reviews the application and issues an interconnection agreement for standard residential systems. Installers generally report a multi-week typical range, with the most common holdups being equipment data that does not match SCE’s listings or designs that exceed standard size thresholds.
- 3.Following local inspection sign-off, SCE completes the interconnection and issues PTO, which is what allows the system to operate and export.
Timelines above reflect what installers commonly report, not guaranteed or regulated processing times. Confirm current requirements directly with SCE.
Documents typically required
- •Completed SCE interconnection / net energy metering application
- •Single-line diagram
- •CEC-listed inverter and module documentation
- •Signed interconnection agreement
- •Final permit and inspection sign-off from the local AHJ
The gap between permit approval and PTO
In SCE territory the permit and the PTO almost never land on the same day, and the gap between them is where projects disappear from view. A job can clear a fast jurisdiction and still wait on SCE’s queue for weeks. PermitClock tracks the SCE interconnection clock alongside the permit so installers know exactly which projects are waiting on the utility.
SCE jurisdictions we track
Track your SCE interconnection timeline in PermitClock
See the interconnection clock next to the permit clock, and catch the projects that stall on the way to PTO.