Alabama vs Arizona Solar Comparison
Arizona gets more sun (6.5 hrs/day) while Arizona has the faster payback (6.8 years).Arizona offers higher 20-year savings at $42,500.
Alabama
4.5 hrs
11.2yr payback
$28,400
20yr savings
Arizona
6.5 hrs
6.8yr payback
$42,500
20yr savings
Side-by-Side Comparison
| Metric | Alabama | Arizona |
|---|---|---|
| Peak Sun Hours | 4.5 hrs | 6.5 hrs |
| Cost per Watt | $2.95 | $2.70 |
| 6kW System Cost | $17,700 | $16,200 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | None | 25% |
| State Rebate | None | $1,000 |
| Net Metering | Partial Net Metering | Full Net Metering |
| Electricity Rate | 14.87¢/kWh | 14.78¢/kWh |
| Payback Period | 11.2 years | 6.8 years |
| 20-Year Savings | $28,400 | $42,500 |
Verdict
Arizona is the better state for solar ROI with $42,500 in 20-year savings and a 6.8-year payback period. Arizona has more sun exposure at 6.5 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 Alabama or Arizona?
Arizona gets more sun (6.5 peak hours/day vs 4.5). Arizona has a faster payback (6.8 years) and Arizona offers higher 20-year savings ($42,500).
How do solar costs compare between Alabama and Arizona?
A 6kW system costs $17,700 in Alabama vs $16,200 in Arizona before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA