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Solar Panel Cost in Washington

Average costs, savings, and incentives for solar installations across Washington.

$3.10
Avg Cost/Watt
4 hrs/day
Peak Sun Hours
$0.102/kWh
Electricity Rate
Full Retail
Net Metering

Estimated Savings for a Typical Washington Home

Based on a $150/month electric bill

System Size
12.3 kW
Gross Cost
$37,990
Federal Credit
-$11,397
State Incentive
-$1,000
Net Cost
$25,593
Annual Savings
$1,460
Payback Period
17.5 yrs
25-Year Savings
$24,277
CO₂ Offset/yr
13,169 lbs

Washington Solar Incentives

30%

Federal Investment Tax Credit (ITC)

Deduct 30% of your total solar installation cost from your federal taxes. Available through 2032 with no dollar cap.

$1,000

Washington State Incentive

Washington offers a sales tax exemption on solar installations.

Net Metering Policy: Full Retail

Top utility in Washington: Puget Sound Energy. View full incentives detail →

Solar Costs by City in Washington

City Annual Savings Payback (yrs) Population Utility
Seattle$1,46016744,955Seattle City Light
Spokane$1,46015.8228,989Avista Utilities
Tacoma$1,46021.5219,346Tacoma Public Utilities
Vancouver$1,46017.9190,915Clark Public Utilities
Bellevue$1,46018.5148,164Puget Sound Energy
Kent$1,46019.8136,588Puget Sound Energy
Everett$1,46016.8112,024Puget Sound Energy
Renton$1,46021106,785Puget Sound Energy
Spokane Valley$1,4601999,208Avista Utilities
Kirkland$1,46020.992,175Puget Sound Energy

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Quick Facts: Washington

  • ⚡ Avg rate: $0.102/kWh
  • 🌞 Peak sun: 4 hrs/day
  • 🏭 Top utility: Puget Sound Energy
  • 📋 Net metering: Full Retail
View all Washington incentives →