Washington State Solar Incentive Program

Washington State Department of Revenue

Closed Solar & Renewable

About This Program

Legacy state solar incentive program provided annual payments for electricity generated by residential solar systems. Program enrollment closed in 2020, but existing participants continue receiving payments through their contract term.

Legacy program, closed to new applicants

Official program page checked live on 2026-06-17.

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

Key Details

  • Legacy program closed to new applications
  • Existing participants receive annual payments
  • Based on solar electricity generation
  • Payments continue through contract term
  • See federal tax credit for current solar incentives

How to Apply

A grant-savvy contractor in Bothell, WA 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 Bothell 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

Washington's Solar for All program, funded through the federal Greenhouse Gas Reduction Fund, brings the benefits of solar to income-qualified residents. It offers no-cost solar installations for income-qualified single-family homeowners and no-cost community or shared solar participation for renters. The Department of Commerce runs it through selected program partners.

Steps to apply

  1. Confirm you are an income-qualified Washington homeowner (or a renter interested in community solar).
  2. Visit the Commerce Solar for All page to find the current program partners and how to enroll.
  3. Contact a participating partner to check eligibility and start enrollment.
  4. If eligible, the partner arranges the no-cost solar installation.

Documents you will likely need

  • Proof of household income to confirm you are income-qualified.
  • Proof you own and live in the home.
  • A recent electric bill.
  • A government-issued photo ID.

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: Program no longer accepting new applications

Questions about this program?

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Need a Contractor for This Grant?

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

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