Washington vs Oregon Solar Incentives: Which State Gets the Better Deal?
Side-by-side comparison of Washington and Oregon solar incentive programs in 2026: state tax credits, net metering rules, exemptions, payback period, and projected 25-year savings.
| Metric | WA · Washington | OR · Oregon |
|---|---|---|
| Avg Monthly Bill | $110 | $115 |
| Peak Sun Hours / Day | 3.8 | 4 ◆ |
| Avg $/Watt Installed | $2.85 ◆ | $2.9 |
| State Tax Credit | None | None |
| Net Metering | retail | retail |
| SREC Market | No | No |
| Property Tax Exempt | No | No |
| Sales Tax Exempt | Yes | No |
| Payback, pre-credit model (yrs) | 9.8 | 9.6 ◆ |
| 25-yr savings, pre-credit model | $26,200 | $28,600 ◆ |
Payback and 25-year savings were modeled while the federal residential credit applied. They are not a 2026 quote. The calculator uses $0 federal credit and state incentives only.
State Tax Credit Comparison
Washington offers no state income tax credit. Oregon offers no state income tax credit.
Net Metering Policies
Washington: retail rate net metering active. Oregon: retail rate net metering active.
Net metering is often the most economically significant solar policy because it determines how excess production is valued. Retail-rate states (where you receive full retail price for exported energy) have substantially better solar economics than avoided-cost or no-net-metering states.
Average 25-Year Savings
Washington: $26,200 over 25 years (avg payback 9.8 yrs). Oregon: $28,600 over 25 years (avg payback 9.6 yrs).
Verdict: Which State Wins on Solar?
Oregon delivers stronger lifetime solar economics than Washington due to higher solar irradiance.
Note: state averages mask significant within-state variation. Your specific utility, roof orientation, and household electricity profile drive your actual numbers — use the calculator to model your home directly.