Washington Solar Savings Calculator
Real 2026 incentive numbers for your utility — no expired federal credit padding the total.
Want us to walk you through the numbers?
Tell us how to reach you and we'll send the full breakdown over — what it costs, what you save, and when it pays for itself — then talk it through whenever suits you.
When it pays for itself
Want to talk it through with someone?
Everything above is a model, not a quote. If it looks worth a closer look, one of our designers can go through it with you — by phone or email, whichever you prefer — and answer whatever comes up. That conversation happens well before anyone visits the house, and there's no obligation to book anything.
Most people want to understand what they're buying before they spend this kind of money. That's how we'd want to be treated too.
WA Solar Calculator Explained
Our solar calculator for Washington state can help you figure out the cost and benefits of going solar. It’s simple to use and just takes a few minutes to complete.
Here is how it works:
- Enter your zip code to find out the average amount of sunlight that hits your area.
- Enter your average monthly electricity bill.
The information you provide will be used to estimate the cost of installing a solar panel system and the amount of money you could save on your electric bill each month. The calculator will also show you the environmental benefits of going solar. It figures out how much carbon dioxide could be kept out of the air each year if solar power was used instead of electricity from the grid.
Try our WA solar calculator now and see the benefits in our beloved Evergreen state:
Top Solar FAQs
Here are some questions our solar consultants get asked from customers in Washington state. If you don’t see your question, we recommend contacting us to learn more about whether solar is right for your home or business.
1. How much does solar cost?
Solar energy systems installed in WA typically cost between $15,000 and $25,000 after rebates and incentives. The price also depends on how much energy usage you use. Why? Because we size the system to your energy usage to maximize your investment. If you oversize it, you will produce more renewable energy than needed. Furthermore, the cost of solar has been dropping rapidly in recent years, so it’s a good time to buy.
2. How much money will I save with solar?
Installing a solar panel system in Washington state typically saves homeowners $600 to $1,200 per year on their electric bills. Keep in mind that while previous solar incentive credits have expired, your ongoing savings will still depend on the size of your system and the amount of sunlight your location receives.
3. What are the best solar rebates?
The main solar rebate in Washington state is the Federal Investment Tax Credit, which gives the purchaser 30% back in tax credits that may be applied to your federal taxes. There is also zero sales tax on renewable energy equipment. Depending on where you live, this will reduce the initial cost by not having to pay your city’s sales tax.
4. How much sun does Washington get?
Washington is a great state for solar power, with an average of 4.5 hours of usable sunlight per day. For comparison, the United States averages between 3 to 5 peak sun hours in most areas. While the Pacific Northwest is known for its cloudy winters, the long, sunny days in the summer make up for the lack of sun in the rainy months. Furthermore, unlike desert areas, which get more sunhours than WA, the rain cleans off the dust and some lighter debris, which keeps the system producing more efficiently.
5. What’s the average payback period?
The average payback period for solar panel systems in Washington is 10 to 14 years. This means that you will make back the money you invested in your system in 10 to 14 years through savings on your electric bill. After that, you will continue to save money for the rest of the system’s life, which is typically 20 to 25 years. Furthermore, many manufacturer's warranties can be up to 25 years and will cover the cost of replacement if certain equipment goes bad. Please ask your consultant about the details before installing.
Who is Sunbridge Solar?
We are a Pacific Northwest solar company that is dedicated to helping homeowners and businesses make the right decision. We are a turnkey solar and battery backup installation company, which means that we can help you with every step of the solar process, from choosing the right system to installing and maintaining it.
You won’t have to do anything except make the decisions about which equipment to use, the location of the equipment, and signing your name. We take care of the rest!
We believe that harnessing the power of the sun should be accessible to everyone. We offer a variety of financing options to make solar more equitable for our local community. If you’re ready to make the switch, contact us today to schedule your free solar consultation!
Have a property in Oregon to test? Try our Oregon Solar Calculator.