In short: Milford city has about 51,000 people and sits in New Haven County. Connecticut Light & Power Co, United Illuminating Co and Town of Wallingford serves different parts of New Haven County, so your utility depends on your address; their 2024 home averages range from 15.65¢ to 34.04¢ per kWh (EIA). Rooftop solar here makes roughly 1,130 kWh a year per kW of panels by our estimate, which is on the modest side, so price and incentives matter more.
This page covers what is local to Milford city: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our Connecticut energy guide and the wider area is covered in the New Haven guide.
Milford city at a glance
- Place: Milford city, New Haven County, Connecticut; about 51,004 residents (Census Bureau estimate, July 2024).
- Utility: Connecticut Light & Power Co (investor-owned). Homes paid an average 28.51¢ per kWh in 2024 (EIA-861); the average customer lost 77 minutes of power on normal days and 159 counting major storms, with 0.6 interruptions a year (utility-wide, not just Milford city).
- Utility: United Illuminating Co (investor-owned). Homes paid an average 34.04¢ per kWh in 2024 (EIA-861); the average customer lost 49 minutes of power on normal days and 122 counting major storms, with 0.6 interruptions a year (utility-wide, not just Milford city).
- Utility: Town of Wallingford (city-owned). Homes paid an average 15.65¢ per kWh in 2024 (EIA-861); the average customer lost 37 minutes of power on normal days and 214 counting major storms, with 0.3 interruptions a year (utility-wide, not just Milford city).
- Sun: 3.87 kWh per square meter per day on average, from 1.50 in December to 6.04 in July (NASA POWER). Our rough estimate: about 1,130 kWh a year per kW of panels.
- Climate: about 820 cooling degree-days and 5,210 heating degree-days a year (base 65°F, NASA POWER), so heating and cooling both matter.
Your utility and what it means
Connecticut Light & Power Co is an investor-owned utility and served about 924,132 home customers in 2024; its 28.51¢ average was above the 24.16¢ statewide average for July 2026. United Illuminating Co is an investor-owned utility and served about 256,302 home customers in 2024; its 34.04¢ average was above the 24.16¢ statewide average for July 2026. Town of Wallingford is a city-owned utility and served about 21,405 home customers in 2024; its 15.65¢ average was below the 24.16¢ 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, Connecticut Light & Power Co reported 77 minutes per customer without major storms in 2024, more than the statewide figure of 73 (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 Connecticut guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Milford city
- 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 Milford city
By our rough estimate each kW of panels makes about 1,130 kWh a year in Milford city (NASA sunshine data times 365 days times 0.80 for system losses). Valued at Connecticut Light & Power Co’s 2024 average of 28.51¢, that is about $322 a year per kW if all of it offsets your own use (an estimate, not a promise). Production swings with the seasons: July is the sunniest month at 6.04 and December the dimmest at 1.50, a 4.0-to-1 gap, so a battery or a bigger system helps in winter.
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.
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. The federal station list shows few or no public chargers listed under Milford city, so a home charger matters more here: see the EV charging cost calculator and EV charger installation.
Drive on another fuel? See every alternative fuel station in Milford city: 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 Milford city building or permitting department, or from New Haven County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Milford city, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the Connecticut guide lists the state licensing rules.
Nearby guides
More local guides: New Haven energy guide, West Haven, Shelton, Bridgeport and Norwalk, or the whole Connecticut energy guide.
Get help
Are you a licensed installer in Milford city? Join SolutionEnergy and get requests from homeowners and businesses →
Tell us about your project and we will connect you with a licensed, independent installer who serves the Milford city area. It is free, there is no obligation, and only the installer you choose gets your details. Read how it works.
Milford city energy FAQ
Who is my electric company in Milford city?
Connecticut Light & Power Co, United Illuminating Co and Town of Wallingford all serve parts of New Haven County. Which one serves you depends on your street, so check the top of your bill. Their 2024 home price averages differ (Connecticut Light & Power Co 28.51¢, United Illuminating Co 34.04¢, Town of Wallingford 15.65¢) so it matters for solar math.
How much power will solar make in Milford city?
About 1,130 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 6,780 kWh. Shade, roof direction and tilt change this; run your address through the solar potential tool for a better number.
Do I need a permit for solar or a generator in Milford city?
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.