How much do solar panels cost in 98144?

A standard 6kW residential solar system in 98144 (Seattle, WA) costs approximately $18,480 before incentives. After the 30% federal Investment Tax Credit, the net cost is $12,936.

How much will I save with solar panels in 98144?

Homeowners in 98144 can expect to save approximately $676 per year on electricity bills with a 6kW solar system, for a total of around $16,900 over 25 years.

How long is the payback period for solar in 98144?

The estimated payback period for a 6kW solar installation in 98144 is 19.1 years after the federal tax credit. This is based on 3.57 kWh/m²/day average solar irradiance and local electricity rates of $0.108/kWh.

Solar Panel Cost in 98144

Last updated April 14, 2026 · Source: NREL and SEIA

Seattle, Washington · Long Payback

Payback 19.1 years

6kW System Cost Breakdown

Gross Installation Cost $18,480 $3.08/W installed

Federal Tax Credit (30%) −$5,544 ITC through 2032

Net Cost After Credit $12,936 Your out-of-pocket cost

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Savings & ROI for 98144

Annual Electricity Savings $676 At $0.108/kWh local rate

Annual Solar Production 6,255 kWh 3.57 kWh/m²/day irradiance

Break-Even Point 19.1 years Long Payback

25-Year Net Savings +$3,964 After total system cost

Solar Loan Calculator

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Solar Resource in Seattle

Seattle (98144) receives an average of 3.57 kWh/m²/day of solar irradiance, based on latitude 47.591°N and Washington regional weather patterns from NREL data. At the local electricity rate of $0.108/kWh, a 6kW system generates roughly $676 per year in bill savings.

Solar irradiance vs. US average (4.5 kWh/m²/day)

07.5 kWh/m²/day

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Nearby Zip Codes in Seattle

98101 Seattle, WA 19.2 yr payback $675/yr savings 98103 Seattle, WA 19.2 yr payback $675/yr savings 98108 Seattle, WA 19.1 yr payback $676/yr savings 98115 Seattle, WA 19.2 yr payback $675/yr savings

How We Calculate Solar Costs for 98144

Costs are based on the average price per watt for Washington ($3.08/W), applied to a standard 6kW residential system. Solar irradiance is derived from NREL PVWatts data for latitude 47.591°N, adjusted for local weather patterns. Electricity rate uses the Washington EIA average of $0.108/kWh.

The 30% federal Investment Tax Credit (ITC) applies as a credit against your federal income tax liability. Many states offer additional credits; check your state's energy office for local incentives.