Solar in New Mexico: is it worth it in 2026?
New Mexico is a good state for solar: most homes that buy a system get their money back in about a decade. Three things decide that: electricity prices rank 31st of 51, it gets more sun than most states (1st), and exported power earns retail credit within each month, with leftovers paid less. Of the 51 states and DC, New Mexico has the 14th-fastest payback for a typical home.
The average home here pays about $95 a month for 637 kWh. A 4 kW system sized for that home would knock about $993 off the first year's bills, 88% of the total.
Checked November 12, 2026
What makes solar pay off in New Mexico
- Size the system to cover your yearly use. With monthly netting, power you export is worth nearly as much as power you use, so aim for little leftover each month.
- The price per watt decides it. At 14.8¢ per kWh, the price per watt matters as much as the sun. At $3.34 per watt, the high end of what companies quote, payback for a typical system here stretches to 15 years.
- Lots of sun. Each kW of panels makes about 1,779 kWh a year here, so a smaller system covers more of your bill than in most states.
Payback by system size
An average New Mexico home uses about 7,644 kWh a year. Here's how systems sized to cover part or all of that work out, bought with cash at $2.57 per watt:
| Covers | Size | Price | Makes a year | Payback | 25-year savings |
|---|---|---|---|---|---|
| 47% | 2 kW | $5,140 | 3,558 kWh | 10 years | $8,119 |
| 70% | 3 kW | $7,710 | 5,337 kWh | 10 years | $13,490 |
| 105% | 4.5 kW | $11,565 | 8,006 kWh | 10 years | $21,345 |
| 128% | 5.5 kW | $14,135 | 9,785 kWh | 11 years | $21,611 |
The 2 kW system pays back fastest, but the 5.5 kW system saves the most over 25 years. Assumes exported power earns about 90% of the retail rate, prices rise 2.5% a year and one inverter replacement.
How New Mexico credits power you send to the grid
Monthly netting
Net metering under the state's Rule 570: exports offset your usage, and surplus is credited at avoided cost.
We haven't found a single published export rate for New Mexico, so the calculators assume about 90% of the retail rate. Ask your utility for its rate and enter it.
Before you sign in New Mexico
Check the license. Look the company up with the New Mexico Construction Industries Division, by its legal name or license number, and ask for the electrician's license number too.
New Mexico has no solar-specific sales law that we know of, so its general consumer protection law applies.
In every state, the FTC Cooling-Off Rule lets you cancel a contract signed at your home until midnight of the third business day.
How to choose a solar company · Contract checklist · Before you sign
New Mexico compared with its neighbors
| State | Electricity | kWh per kW | Typical payback | Exported power |
|---|---|---|---|---|
| New Mexico | 14.8¢ | 1,779 | 10 years | Monthly netting |
| Arizona | 15.3¢ | 1,755 | 16 years | Reduced credit (net billing) |
| Utah | 13.0¢ | 1,484 | 22 years | Reduced credit (net billing) |
| Colorado | 15.7¢ | 1,595 | 10 years | Full credit (net metering) |
| Oklahoma | 13.2¢ | 1,542 | 14 years | Monthly netting |
| Texas | 15.4¢ | 1,421 | 20 years | No statewide rule |
Questions about solar in New Mexico
How long does solar take to pay for itself in New Mexico?
About 10 years for a typical 4 kW system bought with cash at the 2026 median price of $2.57 per watt, with no federal tax credit and one inverter replacement. A bigger or smaller system, a different price, or your own usage will change that; the table above shows other sizes.
Does New Mexico have net metering?
Partly. Net metering under the state's Rule 570: exports offset your usage, and surplus is credited at avoided cost.
Is there a solar tax credit in New Mexico in 2026?
Not from the federal government for buyers: the 30% homeowner credit ended for systems installed after December 31, 2025. For a typical 4 kW system in New Mexico, that credit was worth about $3,084 and brought payback down to 7 years, instead of 10 years now. Leasing companies can still claim a business credit, so ask for a lease or PPA price too. Your state energy office lists any state rebates.
Is a solar battery worth it in New Mexico?
Not for savings. New Mexico credits exported power at close to the retail rate, and storing power in a battery loses about 10% of it, so a battery saves nothing on the bill. It can still be worth it for backup during outages: a 13.5 kWh battery costs about $15,650 installed in 2026.
Is plug-in solar legal in New Mexico?
There's no plug-in solar law yet in New Mexico, so your utility may treat a kit like any rooftop system.
How do I check a solar company's license in New Mexico?
Look the company up with the New Mexico Construction Industries Division (rld.nm.gov/construction-industries) by its legal name or license number, and ask for the electrician's license too.
More guides: What changed for solar in 2026 · Lease or buy? · Plug-in solar · Is my solar system working?
Sources: U.S. Energy Information Administration (EIA), final 2025 data: Annual State Historical Spreadsheets (Form EIA-861, released October 7, 2026) and Electric Power Annual (October 21, 2026); NREL PVWatts (National Solar Radiation Database), statewide averages; Solar Energy Nerds: net metering by state, 2026; EnergySage: median quoted price, first half of 2026.