South Carolina vs Texas 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.
South Carolina
4.8 hrs
9yr payback
$33,200
20yr savings
Texas
5.3 hrs
8yr payback
$38,400
20yr savings
Side-by-Side Comparison
| Metric | South Carolina | Texas |
|---|---|---|
| Peak Sun Hours | 4.8 hrs | 5.3 hrs |
| Cost per Watt | $2.85 | $2.80 |
| 6kW System Cost | $17,100 | $16,800 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | 25% | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Partial Net Metering |
| Electricity Rate | 14.43¢/kWh | 15.06¢/kWh |
| Payback Period | 9 years | 8 years |
| 20-Year Savings | $33,200 | $38,400 |
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 South Carolina or Texas?
Texas gets more sun (5.3 peak hours/day vs 4.8). Texas has a faster payback (8 years) and Texas offers higher 20-year savings ($38,400).
How do solar costs compare between South Carolina and Texas?
A 6kW system costs $17,100 in South Carolina vs $16,800 in Texas before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA