Estimated Savings for a Typical Washington Home
Based on a standard 8 kW home system
System Size
8 kW
Gross Cost
$24,800
State Incentive
-$1,000
Net Cost
$23,800
Annual Savings
$953
Payback Period
25 yrs
25-Year Savings
$8,755
CO₂ Offset/yr
8,596 lbs
Washington Solar Incentives
✕
Federal Tax Credit (Expired Dec 31, 2025)
The 30% federal Residential Clean Energy Credit ended for purchased systems on December 31, 2025. Homeowners buying with cash or a loan in 2026 can no longer claim it. A solar lease or PPA can still pass through a federal credit through 2027 — the installer claims it and lowers your payments.
$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 | $1,039 | 22.9 | 744,955 | Seattle City Light |
| Spokane | $1,056 | 22.5 | 228,989 | Avista Utilities |
| Tacoma | $781 | 30 | 219,346 | Tacoma Public Utilities |
| Vancouver | $934 | 25.5 | 190,915 | Clark Public Utilities |
| Bellevue | $906 | 26.3 | 148,164 | Puget Sound Energy |
| Kent | $847 | 28.1 | 136,588 | Puget Sound Energy |
| Everett | $994 | 23.9 | 112,024 | Puget Sound Energy |
| Renton | $802 | 29.7 | 106,785 | Puget Sound Energy |
| Spokane Valley | $884 | 26.9 | 99,208 | Avista Utilities |
| Kirkland | $804 | 29.6 | 92,175 | Puget 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