In short: Roswell has about 47,200 people and sits in Chaves County. Southwestern Public Service Co, Central New Mexico El Coop, Inc and Otero County Electric Coop Inc serves different parts of Chaves County, so your utility depends on your address; their 2024 home averages range from 11.98¢ to 17.65¢ per kWh (EIA). FEMA rates Chaves County drought “relatively high”. Rooftop solar here makes roughly 1,630 kWh a year per kW of panels by our estimate, which is among the best in the country.
This page covers what is local to Roswell: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our New Mexico energy guide.
Roswell at a glance
- Place: Roswell, Chaves County, New Mexico; about 47,176 residents (Census Bureau estimate, July 2024).
- Utility: Southwestern Public Service Co (investor-owned). Homes paid an average 11.98¢ per kWh in 2024 (EIA-861); the average customer lost 135 minutes of power on normal days, with 1.2 interruptions a year (utility-wide, not just Roswell).
- Utility: Central New Mexico El Coop, Inc (member-owned cooperative). Homes paid an average 17.16¢ per kWh in 2024 (EIA-861); the average customer lost 305 minutes of power on normal days and 625 counting major storms, with 0.1 interruptions a year (utility-wide, not just Roswell).
- Utility: Otero County Electric Coop Inc (member-owned cooperative). Homes paid an average 17.65¢ per kWh in 2024 (EIA-861) (utility-wide, not just Roswell).
- Sun: 5.58 kWh per square meter per day on average, from 3.06 in December to 7.82 in June (NASA POWER). Our rough estimate: about 1,630 kWh a year per kW of panels.
- Climate: about 2,270 cooling degree-days and 2,770 heating degree-days a year (base 65°F, NASA POWER), so heating and cooling both matter.
- Top hazards in Chaves County: drought “relatively high”, strong winds “relatively high” and winter weather “relatively high” (FEMA National Risk Index; overall county risk rated “relatively moderate”).
- Public charging: 21 ports at 10 locations in Roswell, 8 of them DC fast (AFDC, October 20, 2026).
Your utility and what it means
Southwestern Public Service Co is an investor-owned utility and served about 100,540 home customers in 2024; its 11.98¢ average was below the 16.09¢ statewide average for July 2026. Central New Mexico El Coop, Inc is a member-owned cooperative utility and served about 19,126 home customers in 2024; its 17.16¢ average was above the 16.09¢ statewide average for July 2026. Otero County Electric Coop Inc is a member-owned cooperative utility and served about 16,448 home customers in 2024; its 17.65¢ average was above the 16.09¢ statewide average for July 2026. Those are utility-wide averages, not a quote for your address; your own bill is the real number.
For reliability, Central New Mexico El Coop, Inc reported 305 minutes per customer without major storms in 2024, more than the statewide figure of 156 (EIA-861). Utility-wide numbers hide a lot: a home at the end of a long rural line usually has more outages than the average.
Net metering, export rates and incentives are set at state level and by each utility. Start with the New Mexico guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Roswell
- Drought (relatively high): Drought raises fire and heat risk and strains wells. If you rely on a well pump, include it in your backup plan.
- Strong winds (relatively high): High winds knock out lines on ordinary days. A battery or portable power station handles the common short outages; add a generator for multi-day repairs.
- Short outages: a portable power station covers phones, Wi-Fi, a CPAP and lights; a home battery switches over automatically.
Size your setup with the generator sizing tool and the battery backup calculator, and compare options in backup power. Generator safety (CPSC): outdoors only, at least 20 feet from the house, exhaust away from doors and windows, never in a garage, and battery-powered carbon monoxide alarms inside. A licensed electrician should install any transfer switch, with a permit; see generator installation.
Solar in Roswell
By our rough estimate each kW of panels makes about 1,630 kWh a year in Roswell (NASA sunshine data times 365 days times 0.80 for system losses). Valued at Southwestern Public Service Co’s 2024 average of 11.98¢, that is about $195 a year per kW if all of it offsets your own use (an estimate, not a promise). Production swings with the seasons: June is the sunniest month at 7.82 and December the dimmest at 3.06, a 2.6-to-1 gap.
Check your own roof with the solar potential tool, see solar costs and net metering vs net billing, and read the steps in solar installation. Hail and storm exposure are worth raising with installers and your insurer.
Batteries and EV charging
A home battery earns its place when outages are frequent, when your utility pays little for exported solar, or when evening prices are high; compare in home batteries and battery costs. Roswell has 21 public charging ports in the federal station list including 8 DC fast, but home charging is cheaper and easier: see the EV charging cost calculator and EV charger installation.
Drive on another fuel? See every alternative fuel station in Roswell: hydrogen, propane, natural gas, E85 ethanol, biodiesel and renewable diesel.
Permits and inspections
Solar, generator transfer switches and EV chargers normally need an electrical permit from the Roswell building or permitting department, or from Chaves County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Roswell, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the New Mexico guide lists the state licensing rules.
Nearby guides
More local guides: see all of New Mexico, or the whole New Mexico energy guide.
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Roswell energy FAQ
Who is my electric company in Roswell?
Southwestern Public Service Co, Central New Mexico El Coop, Inc and Otero County Electric Coop Inc all serve parts of Chaves County. Which one serves you depends on your street, so check the top of your bill. Their 2024 home price averages differ (Southwestern Public Service Co 11.98¢, Central New Mexico El Coop, Inc 17.16¢, Otero County Electric Coop Inc 17.65¢) so it matters for solar math.
How much power will solar make in Roswell?
About 1,630 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 9,780 kWh. Shade, roof direction and tilt change this; run your address through the solar potential tool for a better number.
Is a generator or a battery better for strong winds in Chaves County?
It depends how long the outage lasts. A battery is quiet, automatic and good for short outages and for pairing with solar; a standby generator keeps going as long as it has fuel, which suits multi-day events. Many homes use a battery for everyday outages and add a generator for the rare long one.
Do I need a permit for solar or a generator in Roswell?
Almost always an electrical permit for a transfer switch, solar or an EV charger, issued by the city or county where you live. Your licensed electrician or installer normally pulls it. Never connect a generator to your house wiring without a transfer switch.
Sources: EIA Form 861 (2024) for utility prices and outages; NASA POWER climatology (2001 to 2025) for sun and degree-days; FEMA National Risk Index for county hazards; AFDC station locator for public charging; Census Bureau for population. Estimates are ours and are not promises; see our editorial policy. Prices and programs change, so check each program page.