Solar System Sizing Tool — Washington
Determine the right solar system size for your home in Washington. With an average electricity rate of 12.5¢/kWh and 3.5 peak sun hours per day, homeowners here typically need a system tailored to local conditions. Select your city for a more precise recommendation.
12.5¢
Avg Rate / kWh
3.5h
Peak Sun Hours / Day
$125
Avg Monthly Bill
1,900
Avg Home Size (sq ft)
Select Your City in Washington
Seattle
12.8¢/kWh · 3.3h sun/day
Avg bill: $128/mo · Seattle City Light
Spokane
11.5¢/kWh · 3.8h sun/day
Avg bill: $118/mo · Avista Utilities
Tacoma
12¢/kWh · 3.4h sun/day
Avg bill: $120/mo · Tacoma Power
Vancouver
12.5¢/kWh · 3.5h sun/day
Avg bill: $122/mo · Clark Public Utilities
Bellevue
13¢/kWh · 3.3h sun/day
Avg bill: $135/mo · Puget Sound Energy (PSE)
Kent
12.5¢/kWh · 3.3h sun/day
Avg bill: $122/mo · Puget Sound Energy (PSE)
Everett
12¢/kWh · 3.2h sun/day
Avg bill: $118/mo · Snohomish County PUD
Related Resources
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