Washington State Solar Incentive Program

Washington Department of Commerce

Available Solar & Renewable

About This Program

Washington State Solar Incentive Program is available to homeowners in Mountlake Terrace, WA.

State production incentive for customer-owned solar PV systems, combined with federal 30% Investment Tax Credit. Incentive rate varies by system type and component sourcing. Must be installed by licensed contractor.

Estimate includes federal tax credit; state incentive based on production

Official program page checked live on 2026-06-22.

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

In Mountlake Terrace, WA, you can combine this program with other local help to cut your cost:

Key Details

  • State production incentive for solar installations
  • Combined with 30% federal tax credit
  • Available through June 2029
  • Must be installed by licensed contractor
  • Incentive paid annually based on production

How to Apply

Get free help applying Visit Official Program Page Track this program

(800) 962-9731

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

This grant requires a licensed contractor

This grant requires the work to be done by a licensed contractor, and you will likely need a written estimate to apply. Get a free estimate from a contractor in Mountlake Terrace who knows grant paperwork.

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.
Get the official form

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.
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: Ongoing through June 2029

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

Who qualifies for Washington State Solar Incentive Program in Mountlake Terrace?

Washington State Solar Incentive Program is open to homeowners in Mountlake Terrace, WA. It has no income limit.

How do I apply for Washington State Solar Incentive Program in Mountlake Terrace, WA?

Apply directly with Washington Department of Commerce using the official program link on this page or call (800) 962-9731. There is no middleman and no fee. Deadline: Ongoing through June 2029.

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 Mountlake Terrace, WA contractors

Find More Programs in Mountlake Terrace, WA

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

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