Solar is worth it for most Washington homeowners with a sound, mostly unshaded roof, even though the federal tax credit ended in 2025. Washington’s 100% sales tax exemption and net metering still do the heavy lifting, and our long summer days bank credits that carry you through gray winters. Sunbridge Solar sees the best results on south, east and west facing roofs.
Want the payback math specifically? See how fast solar pays for itself in Washington.
Does solar actually work in Washington’s cloudy climate?
Solar works in Washington because panels run on daylight, not heat. A Washington system produces most of its power from late spring through early fall, when days in Vancouver and Camas run past 15 hours, and much less from November through January.
That seasonal swing is normal and it is planned for. Net metering, covered below, lets your summer surplus offset your winter usage, so you judge solar on the full year rather than on a rainy week in December. Cool temperatures also help: panels lose a little efficiency as they heat up, so a bright spring day in the Gorge can be one of the best production days of the year.
What does solar cost in Washington now that the federal credit is gone?
Solar in Washington costs more out of pocket than it did in 2025, because the 30% federal residential clean energy credit (Section 25D) does not apply to systems placed in service after December 31, 2025. Older articles that subtract 30% from the price are out of date.
The real price for your home depends on system size, roof layout, shading and equipment. Rather than quote an average that may not fit your house, our Washington solar calculator gives you an estimate from your own usage, and a free on-site visit turns that into a firm number. Talk to a tax professional about your own situation before counting on any tax benefit.
Which Washington solar incentives are still available?
Washington homeowners still have two strong incentives in 2026: a full sales and use tax exemption on solar and net metering through their utility. Washington has no state income tax, so there is no state solar tax credit, and the old production incentive program stopped taking new applicants in 2021.
The 100% sales and use tax exemption
Washington exempts solar systems of at least 1 kW and no more than 100 kW AC from state and local sales and use tax, covering both equipment and installation. Under RCW 82.08.962, the exemption covers installations completed by December 31, 2029.
It applies at the point of sale. You sign a buyer’s exemption certificate, no sales tax is charged, and there is nothing to file afterward. On a home system that saves your full combined state and local sales tax rate on the whole job. Our guide to Washington sales tax exemptions for solar walks through the details.
Net metering
Net metering in Washington credits you, kilowatt-hour for kilowatt-hour, for the power your panels send back to the grid. Your utility installs a two-way meter, and surplus summer production becomes credit you draw down in winter.
One rule matters for sizing. Under RCW 80.60.030, any unused credit left on March 31 each year goes to the utility with no payment to you. That is why Sunbridge Solar sizes a Washington system to your yearly usage rather than as large as the roof allows. Each utility, such as Clark Public Utilities or Cowlitz PUD, sets its own application steps.
Incentives for businesses and farms
Washington businesses and farms have options homeowners do not, including federal depreciation rules and the USDA REAP grant for rural small businesses and agricultural producers. Commercial terms change often, so check current rules with your tax advisor before you plan around them.
Is it worth cutting down a tree for solar?
Cutting down a tree for solar is worth it only when the tree costs you more production than its shade, privacy and value are worth to you. A single tall Douglas fir on the south side can cut a system’s output noticeably, while a tree to the north may not matter at all.
Sunbridge Solar includes a shade check in every free on-site evaluation, and we can quote the system both ways, with the tree and without it, so you can compare expected production. If you do remove a tree, hire a licensed and insured arborist, and add that cost to your math.
What are the downsides of solar in Washington?
The main downsides of solar in Washington are the upfront cost, roof and shading limits, and the March 31 credit reset. None of them rules solar out, but each one is worth knowing before you sign.
- Upfront cost: Without the federal credit, more of the price is yours. Financing, covered below, spreads it out.
- Roof condition: Panels last decades, so an older roof may need replacing first. It costs far less to re-roof before installation than to remove and reinstall panels later.
- Shading: Tall evergreens are part of living here. Heavy shade can make a roof a poor fit.
- Credits are not cash: Net metering credits offset your own usage and reset each March 31, so oversizing a system does not pay.
- Appearance: Some homeowners simply do not like the look, which is a fair reason to pass.
How long do solar panels last on a Washington roof?
Solar panels on a Washington roof typically produce power for 25 years or more. The panels Sunbridge Solar installs carry 25-year product warranties, and our installation work is backed by a 10-year craft warranty. Rain does panels no harm, and it rinses off some of the pollen and dust that builds up in summer.
Is solar worth it if your Washington home heats with gas?
Solar can still be worth it in a Washington home that heats with gas, because it offsets the electricity you buy for everything else: lights, appliances, water heater and cooling. The system is sized to your electric bill alone. If you plan to switch to a heat pump later, tell us during the consultation so the design leaves room to grow.
How can you pay for solar in Washington?
Washington homeowners can pay for solar in cash or through financing. Sunbridge Solar offers Propel solar financing, which gives you 34.2% off at the time of sale and rolls the rest into a long-term, fixed-payment loan you can pay off any time with no prepayment penalty. Credit approval is required, and Propel uses specific made-in-America equipment.
Sunbridge Solar has installed solar since 2010 and works across SW Washington, including Vancouver, Camas, Washougal and the Columbia River Gorge. A typical home install takes one to three days on site. See our Washington solar installation page for how the process works.
Washington solar FAQ
Is there a Washington State solar tax credit?
There is no Washington State solar tax credit, because Washington has no state income tax. The main state incentive is a 100% sales and use tax exemption on qualifying solar systems through December 31, 2029. The federal residential credit also ended for systems placed in service after December 31, 2025.
Do solar panels work in a Washington winter?
Solar panels do work in a Washington winter, but they produce much less than in summer because days are short and cloud is thick. Net metering lets summer surplus offset winter usage, so a Washington system is judged on its yearly output, not on a single gray month.
What happens to unused net metering credits in Washington?
Unused net metering credits in Washington are handed to your utility, with no payment, on March 31 each year under RCW 80.60.030. Credits earned through the summer carry into winter first, which is why a Washington solar system is sized to match your yearly usage.
How long does a solar installation take in Washington?
A typical Sunbridge Solar home installation in Washington takes one to three days on site. Design, permits and utility approval come first and take longer, depending on your city or county and your utility.
Where in Washington does Sunbridge Solar install?
Sunbridge Solar installs solar across SW Washington, including Vancouver, Camas, Washougal and the Columbia River Gorge, from its office in Washougal. It also serves NW Oregon, including Portland.
Talk to Sunbridge Solar about your roof
Call 360-313-7190 for a free consultation, or request a free solar quote online. We will tell you plainly whether solar makes sense for your home, including when it does not.
