In short: Columbus has about 52,000 people and sits in Bartholomew County. Duke Energy Indiana, LLC, AES Indiana and Jackson County Rural E M C serves different parts of Bartholomew County, so your utility depends on your address; their 2024 home averages range from 12.75¢ to 15.32¢ per kWh (EIA). Rooftop solar here makes roughly 1,170 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 Columbus: its utility, outage records, sunshine, weather risks and charging. Statewide rules such as net metering, incentives and electrician licensing are in our Indiana energy guide.
Columbus at a glance
- Place: Columbus, Bartholomew County, Indiana; about 51,970 residents (Census Bureau estimate, July 2024).
- Utility: Duke Energy Indiana, LLC (investor-owned). Homes paid an average 12.75¢ per kWh in 2024 (EIA-861); the average customer lost 113 minutes of power on normal days and 296 counting major storms, with 0.9 interruptions a year (utility-wide, not just Columbus).
- Utility: AES Indiana (investor-owned). Homes paid an average 13.75¢ per kWh in 2024 (EIA-861); the average customer lost 87 minutes of power on normal days and 247 counting major storms, with 1.1 interruptions a year (utility-wide, not just Columbus).
- Utility: Jackson County Rural E M C (member-owned cooperative). Homes paid an average 15.32¢ per kWh in 2024 (EIA-861); the average customer lost 179 minutes of power on normal days and 249 counting major storms, with 1.9 interruptions a year (utility-wide, not just Columbus).
- Sun: 3.99 kWh per square meter per day on average, from 1.53 in December to 6.24 in June (NASA POWER). Our rough estimate: about 1,170 kWh a year per kW of panels.
- Climate: about 1,110 cooling degree-days and 5,180 heating degree-days a year (base 65°F, NASA POWER), so heating and cooling both matter.
- Top hazards in Bartholomew County: tornadoes “relatively moderate”, river and heavy-rain flooding “relatively moderate” and winter weather “relatively moderate” (FEMA National Risk Index; overall county risk rated “relatively low”).
- Public charging: 28 ports at 9 locations in Columbus, 8 of them DC fast (AFDC, October 20, 2026).
Your utility and what it means
Duke Energy Indiana, LLC is an investor-owned utility and served about 796,265 home customers in 2024; its 12.75¢ average was below the 16.73¢ statewide average for July 2026. AES Indiana is an investor-owned utility and served about 469,499 home customers in 2024; its 13.75¢ average was below the 16.73¢ statewide average for July 2026. Jackson County Rural E M C is a member-owned cooperative utility and served about 24,215 home customers in 2024; its 15.32¢ average was below the 16.73¢ 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, RushShelby Energy reported 206 minutes per customer without major storms in 2024, more than the statewide figure of 121 (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 Indiana guide and then ask your utility for its current interconnection steps before you sign anything.
Backup power in Columbus
- Tornadoes (relatively moderate): 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.
- River and heavy-rain flooding (relatively moderate): Heavy rain can flood basements and take out power. Put sump pumps on backup power and keep equipment above the flood line.
- 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 Columbus
By our rough estimate each kW of panels makes about 1,170 kWh a year in Columbus (NASA sunshine data times 365 days times 0.80 for system losses). Valued at Duke Energy Indiana, LLC’s 2024 average of 12.75¢, that is about $149 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 6.24 and December the dimmest at 1.53, a 4.1-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. Columbus 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 Columbus: 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 Columbus building or permitting department, or from Bartholomew County if you live outside city limits, and often a utility interconnection approval. We have not verified a local permit page for Columbus, so check the city and county websites or ask your electrician, who will know the process. Hire only a licensed electrician or installer; the Indiana guide lists the state licensing rules.
Nearby guides
More local guides: Greenwood, Bloomington and Indianapolis city, or the whole Indiana energy guide.
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Columbus energy FAQ
Who is my electric company in Columbus?
Duke Energy Indiana, LLC, AES Indiana and Jackson County Rural E M C all serve parts of Bartholomew County. Which one serves you depends on your street, so check the top of your bill. Their 2024 home price averages differ (Duke Energy Indiana, LLC 12.75¢, AES Indiana 13.75¢, Jackson County Rural E M C 15.32¢) so it matters for solar math.
How much power will solar make in Columbus?
About 1,170 kWh a year per kW of panels by our estimate, so a 6 kW system would make roughly 7,020 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 Columbus?
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.