Are Solar Panels Worth It in Washington?
Last updated July 1, 2026 · based on Washington energy prices
In Washington, where residential electricity averages about 11¢/kWh and rooftop solar yields roughly 1,050 kWh per kW per year, solar has a longer payback here (about 28.6 years) because electricity is relatively cheap — it makes the most sense if your rate is rising or you value energy independence.
Washington solar cost & savings (typical 7 kW system)
| Metric | Estimate |
|---|---|
| Annual production | 7,350 kWh |
| Installed cost (before incentives) | $21,000 |
| Estimated annual savings | $735 |
| Payback period | 28.6 years |
| 25-year net savings | $-3,686 |
Figures use Washington average prices, a 7 kW system at $3.00/watt, 50% self-consumption at retail plus a conservative 9¢/kWh net-metering credit, and ~0.5%/yr panel degradation. Sources: EIA electricity prices and NREL PVWatts production modeling.
What this means for Washington homeowners in 2026
The 30% federal residential solar tax credit (Section 25D) expired December 31, 2025, so a 2026 installation in Washington carries the full upfront cost unless a state or utility incentive applies. Because Washington electricity costs relatively little, the payback case is more marginal — strongest for high electricity users, south-facing roofs, and homeowners who plan to stay long term.
Frequently asked questions
Are solar panels worth it in Washington in 2026?
At Washington's electricity price of 11¢/kWh, a typical 7 kW system saves about $735 per year and pays for itself in roughly 28.6 years. There is no federal solar tax credit in 2026 (Section 25D expired December 31, 2025), so these figures reflect bill savings and net metering only.
How much do solar panels cost in Washington?
A 7 kW system costs roughly $21,000 installed at about $3.00/watt before any state or utility incentive. Costs vary by installer, equipment, and roof complexity.
How much electricity will solar produce in Washington?
About 1,050 kWh per year per kW installed in Washington, so a 7 kW system produces roughly 7,350 kWh/year. Your exact output depends on roof orientation, tilt, and shading.
Estimates based on Washington average energy prices and a simplified model; your results will vary. Energy prices and incentives change frequently. Not financial advice.