New Mexico vs Washington Solar Comparison
New Mexico gets more sun (6.2 hrs/day) while New Mexico has the faster payback (7.5 years).New Mexico offers higher 20-year savings at $36,800.
New Mexico
6.2 hrs
7.5yr payback
$36,800
20yr savings
Washington
3.5 hrs
12.5yr payback
$22,800
20yr savings
Side-by-Side Comparison
| Metric | New Mexico | Washington |
|---|---|---|
| Peak Sun Hours | 6.2 hrs | 3.5 hrs |
| Cost per Watt | $2.80 | $3.10 |
| 6kW System Cost | $16,800 | $18,600 |
| Federal Tax Credit | 30% | 30% |
| State Tax Credit | 10% | None |
| State Rebate | None | None |
| Net Metering | Full Net Metering | Full Net Metering |
| Electricity Rate | 15.34¢/kWh | 11.26¢/kWh |
| Payback Period | 7.5 years | 12.5 years |
| 20-Year Savings | $36,800 | $22,800 |
Verdict
New Mexico is the better state for solar ROI with $36,800 in 20-year savings and a 7.5-year payback period. New Mexico has more sun exposure at 6.2 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 New Mexico or Washington?
New Mexico gets more sun (6.2 peak hours/day vs 3.5). New Mexico has a faster payback (7.5 years) and New Mexico offers higher 20-year savings ($36,800).
How do solar costs compare between New Mexico and Washington?
A 6kW system costs $16,800 in New Mexico vs $18,600 in Washington before incentives. Both qualify for the 30% federal tax credit.
Explore More
Was this data helpful?
Data verified March 2026 · Source: NREL, DSIRE, EIA