Ohio vs Washington Solar Comparison
Ohio gets more sun (3.8 hrs/day) while Ohio has the faster payback (10.2 years).Ohio offers higher 20-year savings at $28,600.
Ohio
3.8 hrs
10.2yr payback
$28,600
20yr savings
Washington
3.5 hrs
12.5yr payback
$22,800
20yr savings
Side-by-Side Comparison
| Metric | Ohio | Washington |
|---|---|---|
| Peak Sun Hours | 3.8 hrs | 3.5 hrs |
| Cost per Watt | $3.10 | $3.10 |
| 6kW System Cost | $18,600 | $18,600 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 15.21¢/kWh | 11.26¢/kWh |
| Payback Period | 10.2 years | 12.5 years |
| 20-Year Savings | $28,600 | $22,800 |
Verdict
Ohio is the better state for solar ROI with $28,600 in 20-year savings and a 10.2-year payback period. Ohio has more sun exposure at 3.8 hrs/day, making it ideal for maximum energy production. Both states qualify for the 30% federal solar tax credit.
Frequently Asked Questions
Is solar better in Ohio or Washington?
Ohio gets more sun (3.8 peak hours/day vs 3.5). Ohio has a faster payback (10.2 years) and Ohio offers higher 20-year savings ($28,600).
How do solar costs compare between Ohio and Washington?
A 6kW system costs $18,600 in Ohio vs $18,600 in Washington before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA