Solar and Battery Installation Center
Find the resources and forms you need to install solar and batteries.
Solar and Battery Applications
To get started with a new solar or battery project, you or your contractor must first submit an SDG&E interconnection application through the Distribution Interconnection Information System (DIIS). Once your application is reviewed and passes initial technical reviews, you will receive an email notification from the Customer Generation team stating that you or your contractor can begin installation of the project. To learn more about this process from start to finish, view the Interconnection Process Guides below.
Online applications are processed within 30 days of being received, with an average processing time of less than five days (Monday to Friday, excluding holidays). You will receive an email confirmation upon processing and email updates as your project moves through the approval steps. If you are planning a more complex or commercial project, a Customer Generation representative may ask for additional information.
Distribution Interconnection Information System (DIIS)
Follow these steps to use the Distribution Interconnection Information System.
- Click the “apply now” button below to access the Distribution Interconnection Information System (DIIS).
- Choose “External User Login” if you’re a contractor, self-installer, inspector or service team.
- Create a new account by clicking “Don’t have an account yet?” or
- Login in with your username and password if you already have an account.
If you have questions during the application process, contact Customer Generation at 858-636-5585 or [email protected].
Fast Track Process (SBP/NEM)
Solar projects may be eligible for approval without a field inspection by a Customer Generation Advisor. To be eligible, you must have electric service panels rated lower than 400 amps and a total system size less than 30kW. If your project meets the criteria, a single frame photo showing the SDG&E electric meter and safety “Caution” placard (attached to the service panel) may be uploaded to the interconnection submittal. These additional items will need to be uploaded along with the single line diagram below.
The interconnection application may take up to 15 minutes to complete. To prevent your session from timing out, please have all required documents on hand before starting the application process.
The following documents are needed to complete this form:
Still have questions?
We’re here to help and want to connect you to the right expert for your specific questions.
For interconnection types:
- Solar Billing Plan (Less or Greater than 30kW) – [email protected]
- Virtual Solar Interconnections – [email protected]
- Rule 21 (non-Solar Billing Plan) – [email protected]
- Wholesale Distribution Open Access Tariff - [email protected]
For support on:
- Renewable Meter Adapter – [email protected]
- DIIS Support – [email protected]
For billing questions:
- Customer Care Center – 1-800-411-7343