Delaware vs Missouri Solar Comparison
Missouri gets more sun (4.4 hrs/day) while Delaware has the faster payback (9.8 years).Delaware offers higher 20-year savings at $30,200.
Delaware
4.2 hrs
9.8yr payback
$30,200
20yr savings
Missouri
4.4 hrs
10.8yr payback
$28,000
20yr savings
Side-by-Side Comparison
| Metric | Delaware | Missouri |
|---|---|---|
| Peak Sun Hours | 4.2 hrs | 4.4 hrs |
| Cost per Watt | $3.00 | $3.05 |
| 6kW System Cost | $18,000 | $18,300 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 14.94¢/kWh | 13.78¢/kWh |
| Payback Period | 9.8 years | 10.8 years |
| 20-Year Savings | $30,200 | $28,000 |
Verdict
Delaware is the better state for solar ROI with $30,200 in 20-year savings and a 9.8-year payback period. Missouri has more sun exposure at 4.4 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 Delaware or Missouri?
Missouri gets more sun (4.4 peak hours/day vs 4.2). Delaware has a faster payback (9.8 years) and Delaware offers higher 20-year savings ($30,200).
How do solar costs compare between Delaware and Missouri?
A 6kW system costs $18,000 in Delaware vs $18,300 in Missouri before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA