South Dakota vs Wyoming Solar Comparison
Wyoming gets more sun (5.2 hrs/day) while South Dakota has the faster payback (11.2 years).South Dakota offers higher 20-year savings at $26,200.
South Dakota
4.6 hrs
11.2yr payback
$26,200
20yr savings
Wyoming
5.2 hrs
12yr payback
$24,600
20yr savings
Side-by-Side Comparison
| Metric | South Dakota | Wyoming |
|---|---|---|
| Peak Sun Hours | 4.6 hrs | 5.2 hrs |
| Cost per Watt | $3.10 | $3.00 |
| 6kW System Cost | $18,600 | $18,000 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Partial Net Metering | Partial Net Metering |
| Electricity Rate | 13.74¢/kWh | 11.72¢/kWh |
| Payback Period | 11.2 years | 12 years |
| 20-Year Savings | $26,200 | $24,600 |
Verdict
South Dakota is the better state for solar ROI with $26,200 in 20-year savings and a 11.2-year payback period. Wyoming has more sun exposure at 5.2 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 Wyoming?
Wyoming gets more sun (5.2 peak hours/day vs 4.6). South Dakota has a faster payback (11.2 years) and South Dakota offers higher 20-year savings ($26,200).
How do solar costs compare between South Dakota and Wyoming?
A 6kW system costs $18,600 in South Dakota vs $18,000 in Wyoming before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA