South Dakota vs Utah Solar Comparison
Utah gets more sun (5.6 hrs/day) while Utah has the faster payback (10 years).Utah offers higher 20-year savings at $28,600.
South Dakota
4.6 hrs
11.2yr payback
$26,200
20yr savings
Utah
5.6 hrs
10yr payback
$28,600
20yr savings
Side-by-Side Comparison
| Metric | South Dakota | Utah |
|---|---|---|
| Peak Sun Hours | 4.6 hrs | 5.6 hrs |
| Cost per Watt | $3.10 | $2.85 |
| 6kW System Cost | $18,600 | $17,100 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Partial Net Metering | Full Net Metering |
| Electricity Rate | 13.74¢/kWh | 11.41¢/kWh |
| Payback Period | 11.2 years | 10 years |
| 20-Year Savings | $26,200 | $28,600 |
Verdict
Utah is the better state for solar ROI with $28,600 in 20-year savings and a 10-year payback period. Utah has more sun exposure at 5.6 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 Dakota or Utah?
Utah gets more sun (5.6 peak hours/day vs 4.6). Utah has a faster payback (10 years) and Utah offers higher 20-year savings ($28,600).
How do solar costs compare between South Dakota and Utah?
A 6kW system costs $18,600 in South Dakota vs $17,100 in Utah before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA