Solar Panel Installation in Washington:
Costs, Rebates & Free Quotes
Average solar system cost in Washington: $13,000–$21,000 before incentives. Compare expected production, incentives, and installation details for your home.
$13,000–$21,000
Avg. System Cost
$900–$1,300/yr
Annual Savings
10–14 years
Typical Payback
3.5–5.0 peak hours/day
Peak Sun Hours
Washington Solar Incentives & Rebates
Current federal solar eligibility should be verified
WA State Tax Exemption (Sales + B&O)
Net Metering
Property Tax Exemption
* Incentives change frequently. Ask each local Washington solar company to confirm current programs and show assumptions in writing.
Solar Quotes by City in Washington
Is Solar Worth It in Washington?
With an average of 3.5–5.0 peak hours/day of peak sunlight daily and state-specific solar rules,Washington can still be worth comparing for solar. Payback depends on system size, export credit rules, financing, and current incentives; a common estimate is 10–14 years.
Federal solar credit rules changed after 2025, while Washington-specific programs may reduce project cost when current rules and eligibility line up.
The best way to know if solar makes sense for your specific home is to get a free quote from a local installer. They'll assess your roof, shade situation, and electricity usage to give you a project-specific estimate.
Average Washington solar bill impact estimate: $900–$1,300/yr
Based on average utility rates and system sizes in Washington.
Get Free Solar Quotes in Washington
Request quote options from local Washington solar installers. 100% free to request.