Solar PV · Washington
Solar Panel Cost in Washington (2026)
Planning-range installed cost for residential solar PV in Washington: national equipment pricing, a state adjustment on the installation-labor share of the price, and the state's PVWatts production yield. 25D federal credit expired 2025-12-31; state and utility programs still apply.
Planning range, not a contractor quote. Verify state and utility programs with the linked administrator before claiming — caps, eligibility, and timelines change.
Mid installed cost · 7 kW system · Washington
$23,425
Range $17,746–$31,944 gross
Cost basics
- Mid $/W
- $3.35
- Range $/W
- $2.54–$4.56
- State labor adjustment
- +1.4% (1.22× on the ~6% labor share)
- PV specific yield
- 1100 kWh/kW/yr
Production & payback
- 7 kW annual production
- 7,700 kWh
- Local electricity rate
- $0.14/kWh
- Annual bill displaced
- $1,109/yr
- Simple payback (mid)
- 21.1 yr
25D federal credit (30%) expired 2025-12-31. State and utility programs may shorten payback. Net-metering successor tariff (NEM 3.0 in CA, similar in HI, AZ, NY) reduces export value.
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