Solar in Roswell, NM: 2026 Cost, Savings & Payback
Calculate 2026 solar panel cost, payback, and 25-year bill savings in Roswell, New Mexico. Based on 5.5 peak sun hours/day, 13.7¢/kWh average electricity rate, PNM Resources utility context, and current IRS guidance for the ended federal residential clean energy credit.
Solar in Roswell, NM: quick answer
A typical 6kW solar system in Roswell costs about $20,580 before local or state incentives. For 2026 installs, the federal residential clean energy credit is modeled as $0, so the estimated cost remains about $20,580 before any local incentive. It produces about 9,395 kWh per year from 5.5 peak sun hours/day, saves about $1,283 per year, and reaches payback in about 16.0 years.
2026 6kW Cost
$20,580
Monthly Savings
$107
Production / kW
1,566 kWh
Panel Count
~15
5.5
Peak Sun Hours/Day
13.7¢
Avg Rate (¢/kWh)
16.0 yr
Payback Period
$45k
25-Year Savings
Roswell Solar Overview
Calculate Your Roswell Solar Savings
Roswell average: $123/mo
South-facing roofs produce the most energy
Add $8,000-$12,000 for whole-home battery backup
Annual Production
kWh/year
Annual Savings
per year
Net System Cost
after 2026 federal credit
Payback Period
break-even time
Bill Offset and Export Assumptions
Current Annual Bill
$1,476
Estimated Usage
10,805 kWh
Bill Offset
89%
Used On Site
100%
Exported production is discounted in this planning model instead of being treated as a guaranteed one-for-one bill credit. For Roswell, verify the current PNM Resources export-credit method and any fixed monthly charges before relying on the payback number.
25-Year Total Savings
$44,952
Monthly Savings
$110
2026 Federal Credit
$0
Cumulative Savings vs System Cost
Cost Breakdown
| Item | Roswell | National Avg |
|---|---|---|
| Gross System Cost (6kW) | $20,580 | $17,100 |
| 2026 Federal Residential Credit | -$0 | $0 |
| Net System Cost | $20,580 | $17,100 |
| Cost Per Watt | $3.43/W | $2.85/W |
Solar Potential in Roswell
Sun Hours vs National Average
Roswell gets 22% more sun than the national average.
Climate Advantages
- 282 sunny days per year
- Average temperature: 61°F — moderate climate with good solar conditions
- Average roof size: 1,735 sq ft — enough for a 96-panel system
Roswell Solar Incentives & Programs
Federal Investment Tax Credit (ITC)
For 2026 planning, JouleIO does not subtract a federal residential clean energy credit. The IRS says the Residential Clean Energy Credit was 30% for eligible property installed from 2022 through December 31, 2025, and is not available for property placed in service after December 31, 2025.
Source: IRS Residential Clean Energy Credit and IRS One Big Beautiful Bill provisions.
New Mexico State Incentives
Federal residential solar credit ended for 2026 homeowner-owned systems placed in service after Dec. 31, 2025; check local utility for additional rebates
Net Metering — PNM Resources
PNM Resources offers net metering in Roswell. Earn credits for excess solar energy sent to the grid, reducing your electric bill further.
Environmental Impact in Roswell
4.0
Tons CO2 Offset/Year
66
Equivalent Trees Planted
0.9
Homes Worth of Energy
Based on 9,636 kWh annual production with a 6kW system. EPA average: 0.417 metric tons CO2 per MWh, 10,632 kWh per US home.
Solar Energy in Roswell, New Mexico
Roswell, New Mexico receives an average of 5.5 peak sun hours per day, placing it among the best cities in the country for solar energy production. With electricity rates averaging 13.7¢ per kWh from PNM Resources, below the national average, but with rates rising 2-3% annually, the long-term savings are still meaningful.
A typical 6kW solar system in Roswell produces approximately 9,636 kWh per year, saving homeowners an estimated $1,316 annually. The system pays for itself in about 15.6 years, after which you enjoy essentially free electricity for the remaining 9+ years of the system's warranty life.
Roswell has a solar penetration rate of 8.3% — showing growing adoption of residential solar, with significant room for expansion. The cost of living index of 82.5 (national average: 100) reflects a lower cost of living, keeping installation costs competitive.
Other Cities in New Mexico
Methodology & Solar Data Sources for Roswell
How we calculate Roswell solar potential and savings: Solar production estimates use NREL's PVWatts calculator methodology, applied to Roswell's specific solar irradiance (peak sun hours), tilt angle, and azimuth. Cost figures combine NREL's Annual Technology Baseline for system pricing, ENERGY STAR's database for residential PV averages, and EIA Form 861 utility rate data for New Mexico.
- Solar irradiance for Roswell: based on NREL National Solar Radiation Database (NSRDB) — 30-year average peak sun hours per day.
- System sizing assumes residential rooftop installation with standard 350-400W panels, calibrated to typical Roswell household electricity usage.
- Federal tax credit: modeled as 0% for 2026 residential installations because IRS guidance says the Residential Clean Energy Credit is not available for property placed in service after December 31, 2025.
- Net metering assumes 1:1 retail-rate compensation typical in New Mexico (verify with local utility — some have shifted to net billing or avoided-cost rates).
- System lifetime standard 25 years with annual degradation of 0.5%/year per industry warranty norms.
Authoritative US solar data sources:
- NREL PVWatts Calculator — official US solar production estimator
- NREL National Solar Radiation Database — 30-year solar irradiance data
- IRS Residential Clean Energy Credit — 2026 federal residential credit status
- IRS One Big Beautiful Bill provisions — clean energy credit expiration overview
- DSIRE — State Solar Incentives — searchable database for New Mexico
- EIA Electric Power Monthly — New Mexico utility rate data
- ENERGY STAR Solar — efficient solar product database
Solar Disclaimer: Solar savings vary based on roof orientation, shading, system quality, installer markup, financing terms, utility rate plan, and policy changes. Always get 3+ quotes from NABCEP-certified installers and review contracts carefully. Tax credit eligibility depends on tax liability — consult a tax professional.
Reviewed by Brazora Monk · Last updated 2026 · NREL irradiance data per NSRDB latest release
Frequently Asked Questions
How much do solar panels cost in Roswell, NM?
The average cost of a 6kW solar panel system in Roswell is approximately $20,580 before local or state incentives ($3.43/watt). For 2026 planning, this calculator does not subtract a federal residential clean energy credit because IRS guidance says the credit is not available for property placed in service after December 31, 2025. Federal residential solar credit ended for 2026 homeowner-owned systems placed in service after Dec. 31, 2025; check local utility for additional rebates
How many solar panels do I need in Roswell, NM?
A typical 6kW residential solar system in Roswell needs about 15 panels if each panel is rated near 400 watts. That system produces about 9,395 kWh per year in this estimate, or roughly 1,566 kWh per installed kW before shading, roof orientation, and inverter losses are customized.
How many peak sun hours does Roswell get?
Roswell, NM receives an average of 5.5 peak sun hours per day and approximately 282 sunny days per year. This is above the national average of 4.5 hours, making it an excellent location for solar energy.
What is the solar payback period in Roswell?
The average solar payback period in Roswell is approximately 16.0 years for a 6kW cash-price estimate before local or state incentives. After payback, your solar panels generate essentially free electricity for the remaining warranty life. Over 25 years, bill savings can reach about $43,824 before subtracting installation cost.
Does Roswell have net metering?
Yes, Roswell has access to net metering through PNM Resources. This allows you to earn credits for excess solar energy sent to the grid, but the final savings depend on the current utility tariff and fixed monthly charges.
Is solar worth it in Roswell, NM in 2026?
Solar may still be worthwhile in Roswell, especially for homeowners with high usage or strong local incentives, but the 16.0-year payback means quote comparison matters. For 2026 installs, JouleIO does not assume a federal residential credit; local incentives and net metering are the main financial drivers.