In short: Liberty has about 31,200 people and sits in Clay County. Union Electric Co, Evergy Missouri West and Evergy Metro serves different parts of Clay County, so your utility depends on your address; their 2024 home averages range from 12.55¢ to 13.72¢ per kWh (EIA). FEMA rates Clay County cold waves “relatively high”. Rooftop solar here makes roughly 1,240 kWh a year per kW of panels by our estimate, which is about average for the U.S..
This page covers what is local to Liberty: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our Missouri energy guide and the wider area is covered in the Kansas City guide.
Liberty at a glance
- Place: Liberty, Clay County, Missouri; about 31,245 residents (Census Bureau estimate, July 2024).
- Utility: Union Electric Co (investor-owned). Homes paid an average 12.56¢ per kWh in 2024 (EIA-861); the average customer lost 94 minutes of power on normal days and 148 counting major storms, with 0.7 interruptions a year (utility-wide, not just Liberty).
- Utility: Evergy Missouri West (investor-owned). Homes paid an average 12.55¢ per kWh in 2024 (EIA-861); the average customer lost 119 minutes of power on normal days and 306 counting major storms, with 1.2 interruptions a year (utility-wide, not just Liberty).
- Utility: Evergy Metro (investor-owned). Homes paid an average 13.72¢ per kWh in 2024 (EIA-861); the average customer lost 104 minutes of power on normal days and 402 counting major storms, with 1.2 interruptions a year (utility-wide, not just Liberty).
- Sun: 4.23 kWh per square meter per day on average, from 1.90 in December to 6.49 in June (NASA POWER). Our rough estimate: about 1,240 kWh a year per kW of panels.
- Climate: about 1,410 cooling degree-days and 5,050 heating degree-days a year (base 65°F, NASA POWER), so heating and cooling both matter.
- Top hazards in Clay County: cold waves “relatively high”, hail “relatively high” and heat waves “relatively high” (FEMA National Risk Index; overall county risk rated “relatively moderate”).
- Public charging: 28 ports at 11 locations in Liberty, 8 of them DC fast (AFDC, October 20, 2026).
Your utility and what it means
Union Electric Co is an investor-owned utility and served about 1,095,619 home customers in 2024; its 12.56¢ average was below the 16.09¢ statewide average for July 2026. Evergy Missouri West is an investor-owned utility and served about 305,583 home customers in 2024; its 12.55¢ average was below the 16.09¢ statewide average for July 2026. Evergy Metro is an investor-owned utility and served about 273,860 home customers in 2024; its 13.72¢ average was below 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, Evergy Missouri West reported 119 minutes per customer without major storms in 2024, more than the statewide figure of 106 (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 Missouri guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Liberty
- Cold waves (relatively 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.
- Hail (relatively high): Hail is hard on rooftop solar; ask installers about impact-rated panels and your insurer about coverage.
- 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 Liberty
By our rough estimate each kW of panels makes about 1,240 kWh a year in Liberty (NASA sunshine data times 365 days times 0.80 for system losses). Valued at Union Electric Co’s 2024 average of 12.56¢, that is about $156 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 6.49 and December the dimmest at 1.90, a 3.4-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. Liberty has 28 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 Liberty: 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 Liberty building or permitting department, or from Clay County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Liberty, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the Missouri guide lists the state licensing rules.
Nearby guides
More local guides: Kansas City energy guide, Independence, Blue Springs, Lee’s Summit and St. Joseph, or the whole Missouri energy guide.
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Liberty energy FAQ
Who is my electric company in Liberty?
Union Electric Co, Evergy Missouri West and Evergy Metro all serve parts of Clay County. Which one serves you depends on your street, so check the top of your bill. Their 2024 home price averages differ (Union Electric Co 12.56¢, Evergy Missouri West 12.55¢, Evergy Metro 13.72¢) so it matters for solar math.
How much power will solar make in Liberty?
About 1,240 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 7,440 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 cold waves in Clay 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 Liberty?
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.