In short: Winooski has about 8,400 people and sits in Chittenden County. Green Mountain Power Corp, Vermont Electric Cooperative, Inc and City of Burlington Electric serves different parts of Chittenden County, so your utility depends on your address; their 2024 home averages range from 18.88¢ to 23.26¢ per kWh (EIA). FEMA rates Chittenden County lightning “relatively high”. Rooftop solar here makes roughly 1,030 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 Winooski: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our Vermont energy guide and the wider area is covered in the Burlington, VT guide.
Winooski at a glance
- Place: Winooski, Chittenden County, Vermont; about 8,370 residents (Census Bureau estimate, July 2024).
- Utility: Green Mountain Power Corp (investor-owned). Homes paid an average 22.09¢ per kWh in 2024 (EIA-861); the average customer lost 281 minutes of power on normal days and 667 counting major storms, with 1.7 interruptions a year (utility-wide, not just Winooski).
- Utility: Vermont Electric Cooperative, Inc (member-owned cooperative). Homes paid an average 23.26¢ per kWh in 2024 (EIA-861); the average customer lost 232 minutes of power on normal days and 896 counting major storms, with 1.4 interruptions a year (utility-wide, not just Winooski).
- Utility: City of Burlington Electric (city-owned). Homes paid an average 18.88¢ per kWh in 2024 (EIA-861) (utility-wide, not just Winooski).
- Sun: 3.53 kWh per square meter per day on average, from 1.10 in December to 5.71 in July (NASA POWER). Our rough estimate: about 1,030 kWh a year per kW of panels.
- Climate: about 400 cooling degree-days and 8,060 heating degree-days a year (base 65°F, NASA POWER), so heating is the big load.
- Top hazards in Chittenden County: lightning “relatively high”, winter weather “relatively moderate” and avalanches “relatively moderate” (FEMA National Risk Index; overall county risk rated “relatively low”).
- Public charging: 1 ports at 1 locations in Winooski, none of them DC fast (AFDC, October 20, 2026).
Your utility and what it means
Green Mountain Power Corp is an investor-owned utility and served about 226,675 home customers in 2024; its 22.09¢ average was below the 23.75¢ statewide average for July 2026. Vermont Electric Cooperative, Inc is a member-owned cooperative utility and served about 35,964 home customers in 2024; its 23.26¢ average was close to the 23.75¢ statewide average for July 2026. City of Burlington Electric is a city-owned utility and served about 17,861 home customers in 2024; its 18.88¢ average was below the 23.75¢ 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, Green Mountain Power Corp reported 281 minutes per customer without major storms in 2024, more than the statewide figure of 275 (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 Vermont guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Winooski
- Lightning (relatively high): Lightning causes short outages and damages electronics. Surge protection and a battery that switches over automatically protect the things you care about.
- Winter weather (relatively moderate): Winter storms and cold snaps combine outages with heating demand. Plan for the furnace blower or heat pump, not just lights, and keep a fuel supply you can reach in snow.
- Heating load: a winter outage can stop a furnace blower, boiler pump or heat pump. List what your heat needs to run before choosing a generator or battery.
- 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 Winooski
By our rough estimate each kW of panels makes about 1,030 kWh a year in Winooski (NASA sunshine data times 365 days times 0.80 for system losses). Valued at Green Mountain Power Corp’s 2024 average of 22.09¢, that is about $228 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 5.71 and December the dimmest at 1.10, a 5.2-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. Winooski has 1 public charging ports in the federal station list (none of them 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 Winooski: 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 Winooski building or permitting department, or from Chittenden County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Winooski, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the Vermont guide lists the state licensing rules.
Nearby guides
More local guides: Burlington, VT energy guide, Essex Junction, South Burlington, St. Albans and Montpelier, or the whole Vermont energy guide.
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Winooski energy FAQ
Who is my electric company in Winooski?
Green Mountain Power Corp, Vermont Electric Cooperative, Inc and City of Burlington Electric all serve parts of Chittenden County. Which one serves you depends on your street, so check the top of your bill. Their 2024 home price averages differ (Green Mountain Power Corp 22.09¢, Vermont Electric Cooperative, Inc 23.26¢, City of Burlington Electric 18.88¢) so it matters for solar math.
How much power will solar make in Winooski?
About 1,030 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 6,180 kWh. Shade, roof direction and tilt change this; run your address through the solar potential tool for a better number.
Will a home battery keep my heat on in an outage?
It can keep a furnace blower, boiler pump or a heat pump running for a while, but long cold outages drain a battery fast without solar to recharge it. Pair it with a generator or wood or propane heat if outages here run for days.
Do I need a permit for solar or a generator in Winooski?
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.