Texas vs Washington Solar Comparison
Texas gets more sun (5.3 hrs/day) while Texas has the faster payback (8 years).Texas offers higher 20-year savings at $38,400.
Texas
5.3 hrs
8yr payback
$38,400
20yr savings
Washington
3.5 hrs
12.5yr payback
$22,800
20yr savings
Side-by-Side Comparison
| Metric | Texas | Washington |
|---|---|---|
| Peak Sun Hours | 5.3 hrs | 3.5 hrs |
| Cost per Watt | $2.80 | $3.10 |
| 6kW System Cost | $16,800 | $18,600 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Partial Net Metering | Full Net Metering |
| Electricity Rate | 15.06¢/kWh | 11.26¢/kWh |
| Payback Period | 8 years | 12.5 years |
| 20-Year Savings | $38,400 | $22,800 |
Verdict
Texas is the better state for solar ROI with $38,400 in 20-year savings and a 8-year payback period. Texas has more sun exposure at 5.3 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 Texas or Washington?
Texas gets more sun (5.3 peak hours/day vs 3.5). Texas has a faster payback (8 years) and Texas offers higher 20-year savings ($38,400).
How do solar costs compare between Texas and Washington?
A 6kW system costs $16,800 in Texas 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