Is solar worth it in Washington?
At Washington’s average rate of 11¢/kWh and about 1100 kWh per kW of panels a year, a typical home pays back its system in roughly 15.1 yrs after the 30% federal credit — then keeps saving. Run your own numbers below.
Independent estimate for guidance only — not a quote or advice. Cheap hydropower and cloudy skies make Washington one of the longest paybacks.
What drives solar payback in Washington
Washington homeowners pay about 11¢/kWh, which is 5.8¢ below the national average. A rooftop here generates roughly 1100 kWh per kW each year — below the typical US figure. On exports, Washington offers full retail net metering: Cheap hydropower and cloudy skies make Washington one of the longest paybacks.
A worked example
For a Washington home with a $160/month power bill:
Assumes 3.00 $/W installed before incentives. Your actual cost, roof and usage will differ — adjust the calculator above.
Washington solar incentives
Every estimate here already includes the 30% federal Residential Clean Energy Credit. On top of that, Washington homeowners may qualify for state, utility or SREC incentives that change often and vary by provider. For the current, authoritative list, check DSIRE’s Washington programs, then type any rebate into the calculator to see how it shortens your payback.