Are you considering solar panels in Washington State? With more than 250+ sunny days per year and some of the top solar incentives in the US. It’s no wonder why so many are switching to solar in The Evergreen State!
This guide will walk you through all the major solar incentives and policies available to Washington residents. We’ll clarify how each program works, who’s eligible, and how they contribute to your solar investment.
Find out what Washington programs are available to you!
What Are Washington Solar Incentives?
Solar incentives are implemented in Washington State to encourage the adoption of solar panels energy system, making them more affordable and accessible. These incentives include tax credits, rebates, grants, and net metering programs, helping homeowners and businesses reduce upfront costs and accelerate their return on investment. Some solar programs even help to install solar panels for free in Washington State!
Here are the top solar incentives in Washington State.
Federal Solar Incentives: The Investment Tax Credit (ITC)
The most significant financial incentive for homeowners nationwide is the federal Solar Investment Tax Credit (ITC). This is a dollar-for-dollar credit that directly reduces the amount of federal income tax you owe.
- Credit Amount: For systems installed between 2022 and 2032, the ITC allows you to claim 30% of the total cost of your solar energy system.
- Impact: On a $22,000 solar system, the 30% ITC provides a $6,600 credit, effectively lowering your net cost to just $15,400.
Washington’s State & Local Solar Incentives
Washington’s primary state-level benefit is its powerful sales tax exemption, complemented by a strong net metering policy.
Name of Incentive | Type | Description | Key Details | Estimated Cash Value |
Federal Solar Tax Credit | Federal Tax Credit | A 30% credit on the total cost of your system against your federal income taxes. | The most significant financial incentive available. | $4,800 – $8,700 |
Sales Tax Exemption | State Tax Exemption | A 100% exemption on the state’s sales tax for all solar equipment and labor. | Immediately reduces your upfront system cost. | $1,400 – $2,500+ |
Property Tax Exemption | Local Tax Exemption | A local-option exemption on the value added to your home by a solar system. | Your property taxes may not increase. | Varies (By locality) |
Net Metering | Utility Bill Credit | Earn credits on your utility bill for excess electricity your system sends to the grid. | Maximizes the value of every kWh you produce. | Varies |
Washington Sales Tax Exemption for Solar
- How it Works: Washington law provides a 100% sales and use tax exemption on the purchase of all solar energy equipment and the labor for installation. The statewide sales tax is 6.5%, but with local taxes, the rate is often between 9-10%.
- Impact: This provides an immediate, upfront cost reduction. On a $22,000 system in an area with a 9% sales tax, this exemption saves you $1,980 right off the bat.
Washington Property Tax Exemption for Solar
- How it Works: Washington state law allows individual cities and counties to offer a property tax exemption for the value added by a solar system.
- Impact: In participating localities, this is a significant long-term benefit that saves you hundreds of dollars every year. The best way to get clear information on your specific locality is to work with a qualified local installer.
Utility-Specific Solar Programs in Washington
Net Metering
- How it Works: Net metering is a critical policy that ensures you get value for every kWh your system produces. When your panels generate more power than you are using, the excess is sent to the grid, and you receive a credit on your bill from your utility (like Puget Sound Energy or Seattle City Light).
- Impact: Net metering maximizes your bill savings and is the foundation of the financial return for solar in Washington. It allows you to offset your energy costs even when the sun isn’t shining.
Find out what Washington programs are available to you!
Understanding the Full Cost of Solar
To appreciate how these powerful incentives work, it’s important to understand the total cost of a solar project they are designed to reduce. A complete solar installation includes panels, inverters, and professional labor, all of which are eligible for these valuable programs.
For a detailed breakdown, see our complete guide on The Cost of Solar Panels in Washington.
Are Solar Panels Worth It in Washington?
The available financial incentives are a key reason why solar is a worthwhile investment in Washington. By combining the 30% federal tax credit with the state sales tax exemption, homeowners can significantly lower their net cost. This leads to a shorter payback period and a greater return on your investment over the 25+ year lifespan of the system.
To see a full financial breakdown, read our detailed analysis: Are Solar Panels Worth It in Washington?.
How To Get Solar With No Upfront Cost
For many homeowners, the ability to go solar without a large upfront investment is key. Financing options like $0-down solar loans are especially powerful because they allow you to own your system and claim the valuable 30% federal tax credit. This makes solar accessible even without a large initial capital outlay.
Our complete guide, How To Get Free Solar Panels in Washington, breaks down how these options work.
Why Your Choice of Installer is Critical
The quality of your installer is the most important factor in ensuring you maximize every available incentive. A top-tier installer in Washington will be an expert in the federal tax credit rules and your utility’s net metering and interconnection process, ensuring you get every dollar of savings you are entitled to.
Our guide to the Top Solar Companies in Washington explains exactly what to look for.
How EcoGen America Simplifies Your Solar Journey
Navigating tax credits and utility policies can be confusing. EcoGen America makes it simple. We connect you with our network of trusted, pre-vetted local installers in Washington who are experts in all available incentives and provide transparent, no-obligation quotes.
Find out exactly what incentives you qualify for.
Find out what Washington programs are available to you!
Frequently Asked Questions
Yes! Washington State offers solar incentives such as sales tax exemptions, federal income tax credits, net metering, and more. These incentives help make solar installations more affordable and encourage the adoption of solar energy in Washington.
No, the previous Washington state production incentive program (RESIP) has closed for new applicants. The primary state-level incentive is the sales tax exemption.
The single biggest financial incentive is the 30% federal solar tax credit, which can save homeowners thousands of dollars on their system.
No, PSE does not currently offer a specific rebate for residential solar installations. The primary benefit they provide is through their net metering program.
Sources & References:
- SEIA (Solar Energy Industries Association) – Washington Solar Policy: https://seia.org/state-solar-policy/washington-solar/
- Energy.gov (U.S. Department of Energy) – Homeowner’s Guide to Going Solar: https://www.energy.gov/eere/solar/homeowners-guide-going-solar
- IRS (Internal Revenue Service) – Form 5695, Residential Energy Credits: https://www.irs.gov/forms-pubs/about-form-5695
- NREL (National Renewable Energy Laboratory) – Annual Technology Baseline (ATB) for Solar: https://atb.nrel.gov/electricity/2024/residential_pv
- EIA (U.S. Energy Information Administration) – Washington State Energy Profile: https://www.eia.gov/state/?sid=WA
- DSIRE (Database of State Incentives for Renewables & Efficiency) – Washington Solar Programs: https://programs.dsireusa.org/system/program/wa/solar
- Washington State Department of Revenue – Renewable Energy System Sales Tax Exemption: https://dor.wa.gov/forms-publications/publications-subject/special-notices/sales-and-use-tax-exemption-purchases-and-installation-solar-energy-systems
