Cost of solar in Seattle, WA

Electricity Consumption in Seattle

Electricity Consumption by Washington residents averages 960 kWh per month. It ranks #35 in the nation for savings from installing solar panels on the home.

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Solar power in Seattle, Washington

Seattle Light provide net metering and support performance payments.

Under net metering excess solar generation is credited at 1 for 1 with retail prices. When more energy is exported than drawn in a month credit is carried over at the same rate for future bills. Unfortunately, remaining credit at the end of the yearly billing cycle expires without compensation.

The Renewable Energy System Incentive Program pays a minimum of $0.16/per kWh for all energy your solar system produces on top of net metering payments! Payments increase to $0.21/kWh when state manufactured solar modules are used. This incentive is a contract signed for 8 years or until 50% of the system has been payed off. State manufactured components will set you back a little more on day one but will result in the best returns.

The federal ITC also allows 30% of the system cost to claimed as a deduction to federal income taxes, this incentive can be used in increments to suit anyones financial position.

With 30% of costs covered, net metering and outstanding performance payments you'd be pretty silly not to install solar while these generous incentives are available. Even if you still aren't sure solar is the right decision fo you a free estimate by entering your zip code below can never hurt.

Even if you are not convinced about solar we recommend that at the very least you use the solar panel calculator for Seattle to find out:

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Solar power in Washington

The average cost of installing residential solar panels in Seattle, Washington in 2020 is $2.58 per watt. The average system size in the US is 6 kilowatts, which means the average price of a solar system in Seattle, WA is $12,900. (before claiming 26% tax credit and other rebates)

What does the cost of a real solar system look like?

Facts about installing a 32.31kW solar system in Seattle, WA

This system would offset 100% of your energy usage if your typical monthly bill is $183, however your situation may vary so try our Seattle solar calculator to get a result tailored to you.


Net cost of system
Cash - after 26% solar tax credit

17 Years 7 Months

Average payback time


Annual power production


levilized cost of solar energy


If you don't get solar
The forecast average utility price over the next 25 years

Cash flow graph based on cash purchase of this 32.31kW system

Life-time savings on this system over the next 25 years


(Prices shown after repayments of capital)



Solar companies in Seattle, WA that provide pricing through the Solar-Estimate marketplace



Solar calculator and quote comparison tool

Average total cost of solar panel installation in Washington

System Size Cash purchase
After 26% solar tax credit
Financed purchase
After 26% solar tax credit
3kw $6,016 $6,497
4kw $7,903 $8,535
5kw $9,694 $10,470
6kw $11,455 $12,372
7kw $13,105 $14,154
8kw $14,741 $15,920
9kw $16,250 $17,550
10kw $17,760 $19,181


Going solar in Washington

Check out all of the ways energy providers of Washington can help you be more energy efficient and save money.

The following programs are available:
Incentive Name Eligibility Type
Residential Renewable Energy Tax Credit Federal Personal Tax Credit
Renewable Energy Sales and Use Tax Exemption State Sales Tax Incentive
Net Metering State Net Metering
Chelan County Sustainable Natural Alternative Power Program Utility Performance-Based Incentive

Please keep in mind that the best source of up-to-date information on incentives are the solar installers who specialize in your area.