In short: Collierville has about 52,000 people and sits in Shelby County. City of Memphis serves the county, averaging 12.16¢ per kWh for homes in 2024 (EIA). FEMA rates Shelby County tornadoes “very high”. Rooftop solar here makes roughly 1,290 kWh a year per kW of panels by our estimate, which is good for solar.
This page covers what is local to Collierville: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our Tennessee energy guide and the wider area is covered in the Memphis guide.
Collierville at a glance
- Place: Collierville, Shelby County, Tennessee; about 51,951 residents (Census Bureau estimate, July 2024).
- Utility: City of Memphis (city-owned). Homes paid an average 12.16¢ per kWh in 2024 (EIA-861); the average customer lost 281 minutes of power on normal days and 327 counting major storms, with 1.7 interruptions a year (utility-wide, not just Collierville).
- Sun: 4.42 kWh per square meter per day on average, from 2.09 in December to 6.61 in June (NASA POWER). Our rough estimate: about 1,290 kWh a year per kW of panels.
- Climate: about 2,180 cooling degree-days and 3,270 heating degree-days a year (base 65°F, NASA POWER), so heating and cooling both matter.
- Top hazards in Shelby County: tornadoes “very high”, cold waves “very high” and heat waves “relatively high” (FEMA National Risk Index; overall county risk rated “relatively high”).
- Public charging: 12 ports at 7 locations in Collierville, 10 of them DC fast (AFDC, October 20, 2026).
Your utility and what it means
City of Memphis is a city-owned utility and served about 380,286 home customers in 2024; its 12.16¢ average was below the 13.71¢ 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, City of Memphis reported 281 minutes per customer without major storms in 2024, more than the statewide figure of 160 (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 Tennessee guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Collierville
- Tornadoes (very high): Tornado-season storms cut power quickly. A battery that switches on by itself, or a portable generator ready to go, covers the first night; sirens and weather radios need power too.
- Cold waves (very high): Cold waves raise demand and can cause both outages and frozen pipes. Keep at least one room warm with a battery-run heater circuit or a generator.
- 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 Collierville
By our rough estimate each kW of panels makes about 1,290 kWh a year in Collierville (NASA sunshine data times 365 days times 0.80 for system losses). Valued at City of Memphis’s 2024 average of 12.16¢, that is about $157 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 6.61 and December the dimmest at 2.09, a 3.2-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. 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. Collierville has 12 public charging ports in the federal station list including 10 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 Collierville: 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 Collierville building or permitting department, or from Shelby County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Collierville, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the Tennessee guide lists the state licensing rules.
Nearby guides
More local guides: Memphis energy guide and Bartlett, or the whole Tennessee energy guide.
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Collierville energy FAQ
Who is my electric company in Collierville?
Federal data lists City of Memphis as the main utility serving Shelby County. Small areas can be served by a different company or a co-op, so confirm on your bill.
How much power will solar make in Collierville?
About 1,290 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 7,740 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 tornadoes in Shelby 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 Collierville?
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.