SunPowerPeek

Arizona vs New Mexico 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.

Arizona

6.5 hrs

6.8yr payback

$42,500

20yr savings

New Mexico

6.2 hrs

7.5yr payback

$36,800

20yr savings

Side-by-Side Comparison

MetricArizonaNew Mexico
Peak Sun Hours6.5 hrs6.2 hrs
Cost per Watt$2.70$2.80
6kW System Cost$16,200$16,800
Federal Tax Credit30%30%
State Tax Credit25%10%
State Rebate$1,000None
Net MeteringFull Net MeteringFull Net Metering
Electricity Rate14.78¢/kWh15.34¢/kWh
Payback Period6.8 years7.5 years
20-Year Savings$42,500$36,800

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 Arizona or New Mexico?

Arizona gets more sun (6.5 peak hours/day vs 6.2). Arizona has a faster payback (6.8 years) and Arizona offers higher 20-year savings ($42,500).

How do solar costs compare between Arizona and New Mexico?

A 6kW system costs $16,200 in Arizona vs $16,800 in New Mexico before incentives. Both qualify for the 30% federal tax credit.

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Data verified March 2026 · Source: NREL, DSIRE, EIA