Solar panels in Las Cruces, NM
Roofs in Las Cruces get about 2,112 hours of usable sunlight a year — more than 100% of the cities we've measured. Here's what that means in cost, savings and payback, using real rooftop data rather than a national average.
Check your specific roof in Las Cruces → City averages are a starting point; your own roof's size, pitch and shading change the answer a lot.
What a typical Las Cruces solar system costs
A 16-panel system (6.4 kW) is about right for an average Las Cruces home using 10,800 kWh a year. It would produce roughly 11,489 kWh annually and offset 100% of that usage.
| System | Size | kWh/yr | Net cost | Saves/yr | Payback |
|---|---|---|---|---|---|
| 8 panels | 3.2 kW | 5,745 | $6,384 | $850 | 7.5 yrs |
| 12 panels | 4.8 kW | 8,617 | $9,576 | $1,275 | 7.5 yrs |
| 16 panels | 6.4 kW | 11,489 | $12,768 | $1,624 | 7.9 yrs |
| 20 panels | 8 kW | 14,362 | $15,960 | $1,730 | 9.2 yrs |
| 26 panels | 10.4 kW | 18,670 | $20,748 | $1,890 | 11 yrs |
Notice that payback barely improves as systems get bigger, and eventually gets worse. That's because you can only save money on electricity you were going to buy anyway. Once a system covers your usage, extra panels mostly generate exports at a much lower rate.
Why Las Cruces gets 2,112 sun hours
That figure comes from Google's analysis of real rooftops across Las Cruces — it already accounts for shading from trees, chimneys and neighbouring buildings, which is why it's lower than the raw "hours of daylight" figures you'll see elsewhere. An unusually open, unshaded roof in Las Cruces reaches about 2,185 hours, roughly 3% better than typical.
The numbers behind this page
| Typical usable sunlight | 2,112 hrs/yr |
|---|---|
| Unshaded roof | 2,185 hrs/yr |
| Electricity rate (New Mexico avg) | 14.8¢/kWh |
| Installed cost assumed | $2.85/W |
| Panel size assumed | 400 W |
| Federal tax credit | 30% |
| Typical household usage | 10,800 kWh/yr |
| Power used as generated | 33% |
| Paid for exported power | full retail (net metering) |
| Rooftops sampled here | 10 |
| Google imagery from | 2015 |
Nearby cities
See all of New Mexico → statewide sunlight, rates, incentives and every city we've measured.
Las Cruces solar questions
How many solar panels do I need in Las Cruces?
About 16 panels for an average home. Las Cruces roofs get 2,112 usable sun hours a year, so each 400W panel produces roughly 718 kWh annually.
Is solar worth it in Las Cruces?
At 14.8¢/kWh and 2,112 sun hours, a typical system pays for itself in about 7.9 years and returns roughly $27,830 over 25 years. That is a solid return.
How much do solar panels cost in Las Cruces?
A 6.4 kW system costs about $18,240 before incentives and $12,768 after the 30% federal tax credit. Prices vary by installer, roof complexity and equipment.
Worth reading before you buy
Estimates only, generated 2026-08-22 from Google Solar API rooftop samples and average New Mexico electricity rates. Not a quote and not financial advice. Your roof, usage, utility plan and local incentives will change these numbers — get real quotes before buying.