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Solar panel cost and payback in New Mexico
Measured production, your actual utility's filed rates, and honest payback maths with no federal tax credit applied - because for a home bought today there is not one.
The Residential Clean Energy Credit was terminated for home purchases after 2025-12-31, so the $26,000 above is what a New Mexico household actually pays - not a headline price with a rebate quietly subtracted. A quote that still shows the credit is overstating your return by about that amount, which on these numbers is roughly 4 years of savings.
What solar costs in New Mexico at different bills
Worked at 1802 kWh per kW per year and $0.1209 per kWh, the midpoints across the 2 metros below, at $2.60 per watt installed.
| Monthly bill | System | Cost | Year-1 saving | Payback | 25-year net |
|---|---|---|---|---|---|
| $120 | 6.6 kW | $17,185 | $1,242 | 12.2 yrs | +$24,144 |
| $200 | 10.0 kWroof limit; covers 91% | $26,000 | $1,879 | 12.2 yrs | +$36,528 |
| $300 | 10.0 kWroof limit; covers 61% | $26,000 | $1,879 | 12.2 yrs | +$36,528 |
Exported surplus is valued at zero throughout, so these are floors rather than best cases. Where fully covering the bill would need more panels than a roof holds, the row shows the largest system that actually fits and the share of your usage it covers - not the lifetime return on an array nobody can build. Your own bill and roof will move them - run your address.
Sunlight and rates by New Mexico metro
Straight from NREL PVWatts and the utility rate database, by named utility. This is why one statewide figure does not work.
| Metro | Utility | Production | Rate |
|---|---|---|---|
| Albuquerque | Public Service Co of New Mexico | 1,778 kWh/kW | $0.1231 |
| Las Cruces | El Paso Electric Co | 1,826 kWh/kW | $0.1187 |
What New Mexico pays you for surplus power
Net metering
Surplus generation is credited in kilowatt-hours and carried to your next bill, under state Rule 17.9.570.
For small residential systems, typically 10 kW AC and under, the utility credits net overproduction as kilowatt-hour credits on the following month's bill. The state's separate solar REC purchase incentive was discontinued at the end of 2022, so guides that still mention it are out of date. New Mexico combines the best sun in this group with straight kWh crediting, which is a genuinely favourable pairing.
Checked 2026-08-21 against New Mexico Public Regulation Commission. Export rules are being rewritten across the country, so verify before you sign. Current incentive detail for New Mexico is maintained at DSIRE, which we link to rather than copy precisely because it changes.
Is solar worth it in New Mexico?
Mostly yes, though not the whole bill. A roof-sized array here gets you 91% of the way, and the remainder keeps coming from the grid. Covering it entirely would take 11.0 kW of panels, which is more roof than most houses have. The 10.0 kW that does fit costs $26,000 and returns about $36,528 over 25 years, paying for itself in roughly 12.2 years. At that coverage there is little left to gain from a bigger array even if the roof allowed one.
Your own bill and roof move this more than the state average does, and New Mexico households vary widely on both. Run your ZIP code through the calculator for numbers worked from your own utility rather than a New Mexico midpoint. It asks for no email address and nobody will call you.
New Mexico solar questions
How are my excess kilowatt-hours credited?
For small residential systems, typically 10 kW AC and under, net overproduction in a month is carried to the next bill as kilowatt-hour credits rather than cash. That is straightforward crediting of the kind many states have moved away from, and combined with New Mexico's excellent sun it is a favourable pairing.
Is the state solar tax credit still available?
New Mexico's separate solar renewable energy certificate purchase incentive was discontinued at the end of 2022, so guides still referencing it are out of date. State-level incentives have changed more than once; check DSIRE for what is actually open before assuming any of it applies to you.
Does New Mexico get more sun than Arizona?
They are close. Our measurements put Albuquerque and Las Cruces marginally ahead of Phoenix and Tucson on annual output per kilowatt, largely because of altitude and cooler operating temperatures - panels lose efficiency as they get hot, so the very hottest places are not automatically the most productive.