California Solar Initiative (CSI)

California Public Utilities Commission

Available Solar & Renewable

About This Program

California Solar Initiative (CSI) is available to homeowners in Lake Forest, CA.

While the CSI upfront rebate program has ended, Lake Forest homeowners can still access the 30% federal solar Investment Tax Credit (ITC) for solar installations through 2032. Combined with SDG&E net metering, solar remains highly cost-effective.

Estimated federal tax credit on typical solar installation

Official source site checked live on 2026-06-22.

Data last verified 2026-06-09. How we verify our data.

In Lake Forest, CA, you can combine this program with other local help to cut your cost:

Key Details

  • 30% federal solar tax credit
  • Available through 2032
  • No upfront state rebates remaining
  • Combine with SDG&E net metering
  • No income restrictions

How to Apply

Get free help applying Visit Official Program Page Track this program

(800) 644-6133

A grant-savvy contractor in Lake Forest, CA can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Lake Forest early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Your federal tax return for the year of the work (this benefit is claimed on your taxes, not through a separate application).
  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Federal tax credit available through 2032

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Frequently asked questions

How much can California Solar Initiative (CSI) provide in Lake Forest, CA?

30% federal tax credit.

Who qualifies for California Solar Initiative (CSI) in Lake Forest?

California Solar Initiative (CSI) is open to homeowners in Lake Forest, CA. It has no income limit.

How do I apply for California Solar Initiative (CSI) in Lake Forest, CA?

Apply directly with California Public Utilities Commission using the official program link on this page or call (800) 644-6133. There is no middleman and no fee. Deadline: Federal tax credit available through 2032.

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Lake Forest, CA contractors

Find More Programs in Lake Forest, CA

This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

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