Arizona vs California Solar Comparison
Arizona gets more sun (6.5 hrs/day) while California has the faster payback (5.5 years).California offers higher 20-year savings at $58,200.
Arizona
6.5 hrs
6.8yr payback
$42,500
20yr savings
California
5.8 hrs
5.5yr payback
$58,200
20yr savings
Side-by-Side Comparison
| Metric | Arizona | California |
|---|---|---|
| Peak Sun Hours | 6.5 hrs | 5.8 hrs |
| Cost per Watt | $2.70 | $3.30 |
| 6kW System Cost | $16,200 | $19,800 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | 25% | None |
| State Rebate | $1,000 | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 14.78¢/kWh | 31.22¢/kWh |
| Payback Period | 6.8 years | 5.5 years |
| 20-Year Savings | $42,500 | $58,200 |
Verdict
California is the better state for solar ROI with $58,200 in 20-year savings and a 5.5-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 Arizona or California?
Arizona gets more sun (6.5 peak hours/day vs 5.8). California has a faster payback (5.5 years) and California offers higher 20-year savings ($58,200).
How do solar costs compare between Arizona and California?
A 6kW system costs $16,200 in Arizona vs $19,800 in California before incentives. Both qualify for the 30% federal tax credit.
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Data verified March 2026 · Source: NREL, DSIRE, EIA