Solar calculator for New Mexico
Panels, system size, cost and payback for New Mexico, from your own power bill.
The average New Mexico home uses 654 kWh a month and pays 14.2 cents per kWh, which puts New Mexico at mid-range electricity prices, so payback depends mostly on how much sun your roof gets. New Mexico has both a heating and a cooling season, so the bill swings both ways and a full year of bills gives a better answer than one month. A south-facing fixed array there makes about 1,779 kWh per installed kW a year, and the worst winter month still gets 4.4 peak sun hours a day. Drop in your own bill below and the numbers on this page are replaced by yours.
A worked example for New Mexico
Take the average home: 654 kWh a month, which is 7,848 kWh a year, at 14.2 cents per kWh (EIA, 2024 residential averages, as of 2026-11). Sized to cover all of that use, the tool returns 4.4 kWdc and 11 panels, needing about 231 square feet of roof. The installed estimate is $10,985 (national median, EnergySage H2 2025), yearly savings are about $1,114, and simple payback is 9.9 years, with no incentive applied.
Sun and yield in New Mexico
We use 1,779 kWh per installed kW per year for New Mexico, from NREL PVWatts v8 for the state's largest city at a 20 degree south-facing tilt (via TheGreenWatt, as of 2026-11). The darkest month averages 4.4 peak sun hours a day, which matters if you plan to go off-grid or size a battery. A different roof angle or heavy shade changes this, so treat it as a starting point.
Incentives
The 30% federal tax credit ended for homeowner purchases after December 31, 2025, so none is applied here. See the tax credit guide. Look up New Mexico and your own utility for net metering terms and any local programs before relying on a payback number.
Planning estimate. Permits, interconnection approval and a licensed electrician are required for grid-tied systems.
Questions
How many solar panels does a New Mexico home need?
The average New Mexico home uses 7,848 kWh a year (EIA 2024). At about 1,779 kWh per installed kW, covering all of it takes 4.4 kWdc, or 11 panels. Your own bill will move that up or down.
How much does solar cost in New Mexico?
For the average-home example the installed estimate is $10,985 at the national median of $2.49 per watt (EnergySage, H2 2025, as of 2026-11). We have no sourced New Mexico price multiplier, so local quotes will differ.
Is there a federal solar tax credit in New Mexico?
The 30% federal tax credit ended for homeowner purchases after December 31, 2025. Check your state, utility and local programs separately.
Where does the New Mexico sun figure come from?
1,779 kWh per kW per year and 4.4 winter peak sun hours come from NREL PVWatts v8 runs for New Mexico's largest city, compiled by TheGreenWatt (as of 2026-11). Real yield varies across the state.
Is my bill uploaded?
No. Your bill is read in your browser and never uploaded.