Duke Energy Indiana, LLC
Investor Owned electric utility · Indiana · #44 of 3,199 U.S. utilities by customers · EIA utility #15470
Duke Energy Indiana, LLC is a investor owned electric utility serving 921,804 customers in Indiana. In 2025 it sold 27,498 gigawatt-hours of electricity for $3.25B in revenue, an average realized rate of 11.84¢ per kWh across all customer classes and 14.98¢ per kWh for residential customers. Its reported service territory covers 71 counties. EIA records its activities as: generation, transmission, buying transmission, distribution, wholesale marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 808,572 | 9,625 | $1.44B | 14.98¢ | |
| Commercial | 110,631 | 8,650 | $1.02B | 11.75¢ | |
| Industrial | 2,601 | 9,223 | $796.64M | 8.64¢ | |
| Total | 921,804 | 27,498 | $3.25B | 11.84¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (992 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 860,972 | 26,939 | $2.76B | 12.95¢ |
| 2022 | 881,328 | 27,290 | $3.44B | 15.15¢ |
| 2023 | 894,157 | 25,619 | $2.93B | 14.31¢ |
| 2024 | 909,011 | 26,441 | $2.69B | 12.75¢ |
| 2025 | 921,804 | 27,498 | $3.25B | 14.98¢ |
Reliability (2025)
Average outage time (SAIDI): 267 minutes per customer per year
Average outages (SAIFI): 1.26 per customer
Average restoration time (CAIDI): 212 minutes
As reported for Indiana under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: 20,707 GWh
Wholesale power purchased: 13,771 GWh
Winter peak demand: 5,824 MW
Energy losses: 7.0% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 99.7% of 948,936 meters
Customer-sited generation (net metering): 4,822 installations, 107.9 MW of capacity
Counties served
Bartholomew, INBenton, INBoone, INBrown, INCarroll, INCass, INClark, INClay, INClinton, INCrawford, INDaviess, INDearborn, INDecatur, INDelaware, INDubois, INFayette, INFloyd, INFountain, INFranklin, INFulton, INGibson, INGrant, INGreene, INHamilton, INHancock, INHarrison, INHendricks, INHenry, INHoward, INHuntington, INJackson, INJefferson, INJennings, INJohnson, INKnox, INKosciusko, INLawrence, INMadison, INMarion, INMartin, INMiami, INMonroe, INMontgomery, INMorgan, INOhio, INOrange, INOwen, INParke, INPike, INPosey, INPutnam, INRandolph, INRipley, INRush, INScott, INShelby, INSullivan, INSwitzerland, INTippecanoe, INTipton, IN + 11 more counties
Other large utilities in Indiana
- Indiana Michigan Power Co - 618,131 customers, residential 17.17¢
- AES Indiana - 530,671 customers, residential 14.69¢
- Northern Indiana Pub Serv Co - 496,542 customers, residential 22.05¢
- Southern Indiana Gas & Elec Co - 154,465 customers, residential 19.78¢
- Hendricks County Rural E M C - 39,621 customers, residential 13.68¢
- South Central Indiana REMC - 35,833 customers, residential 17.54¢
- City of Anderson - (IN) - 33,543 customers, residential 12.67¢
- Northeastern Rural E M C - 33,173 customers, residential 15.43¢
All Indiana utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #15470 in the EIA frame.