Solar Panel Cost in Seattle, WA: 2024 Guide – EnergySage Blog

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As of February 2024, the average solar panel system costs $2.85/W including installation in Seattle, WA. For a 5 kW installation, this comes out to about $14,266 before incentives, though prices range from $12,126 to $16,406. After the federal tax credit, the average price drops by 30%.

Average price of a 5 kW solar panel installation in Seattle, WA

You’ll probably pay even less than what we show here. It doesn’t include the federal ITC or Seattle, WA state incentives, which will lower this price by at least a few thousand dollars.

Your solar panel cost depends on your system’s size

It may seem obvious but larger solar panel systems cost more money. We use cost per watt ($/W) so you can easily compare quotes, controlling for slight variations in system size.

While a 5 kW system will only cost you $14,266 in Seattle, WA, doubling the system size effectively doubles the price, so you’ll pay about twice that for a 10 kW system. The higher the price tag, though, the more you’ll get back as a credit towards your federal tax bill.

Average solar cost by system size in Seattle, WA

Are solar panels worth it in Seattle, WA?

Solar panels are worth it in most areas, including Seattle, WA. Certain factors, including the cost of electricity, incentives, climate, and the angle at which the sun hits your roof impact how quickly you break even on your investment relative to other areas around the U.S. 

If you pay for your system with cash, you’ll save about $8,092 over 20 years on electricity costs with a 5 kW system in Seattle, WA. We generate this estimate based on real solar quote data from our Marketplace. It considers your system’s cost, the federal tax credit, and inflation rates.

If you can’t shell out $14,266 in cash to pay for solar, don’t sweat it. You can choose to finance your system with a loan instead. Some companies even offer $0-down loans so you can start saving on day one if your loan payments are less than your current electric bills. Just keep in mind that your long-term savings will be lower with a loan due to interest rates.

The numbers we’re showing are averages. The price you’ll pay for solar depends on many factors unique to you and your home:

If you’re looking for solar companies in WA, here are some popular suggestions:

Solar is a major purchase, but you can get the price tag to come down a bit by being an educated shopper. Taking advantage of incentives and rebates and shopping around for quotes can bring down your cost of solar in Seattle, WA.

Take advantage of federal and local solar incentives

As long as your federal tax bill is high enough, you can take advantage of the federal tax credit in Seattle, WA. This incentive allows you to apply 30% of your solar installation and equipment costs toward your federal tax bill. If the amount exceeds your tax bill, you can roll over the remaining credit to the following year. Many states also offer great local incentives and rebates.

Get quotes from multiple installers

Comparing multiple solar quotes can save you money through competition and transparency. Each additional quote you receive for solar will help you find the right solar panel system at the right price.

This is where EnergySage can help. With funding from the Department of Energy’s SunShot Prize, EnergySage opened the country’s first (and now the largest) marketplace for home solar panel installations. We gather custom solar quotes from local installers on your behalf and put them in an easy-to-compare format. When you compare quotes for solar panels on the EnergySage Marketplace, you can expect to see prices up to 20% lower than if you work with a single solar company.

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