Duke Energy Indiana rates and bills
Duke Energy Indiana's 808,572 residential customers in Indiana paid an average of 14.98¢ per kWh in 2025, for an average bill of $148.57 a month on 992 kWh.1 Over the last 12 months (Sep 2025–Aug 2026) the average was 15.91¢, and 16.16¢ in August 2026.2
EIA-861 2025 final (released October 7, 2026) and EIA's monthly utility survey through August 2026 (preliminary); next monthly update expected November 24, 2026. Averages are revenue divided by kWh, all charges included: not the rate printed in a tariff.
71 of 92 Indiana counties served (EIA-861 2025)
At Duke Energy Indiana, the state's largest utility, the average residential price rose faster than at Indiana's other large utilities in 2025: its homes paid 12.75¢ per kWh5 in 2024 and 14.98¢ per kWh in 2025. Because use per home rose at the same time, the average monthly bill rose further (+23.5%1), and the 12 months to August 2026 came in higher again.
Price per kWh: which figure for which period
EIA publishes three averages for Duke Energy Indiana's 808,5721 residential customers, and each answers a different question:
| Period | Source | Average residential price |
|---|---|---|
| Calendar 2025 | EIA-861, final | 14.98¢ per kWh1 |
| Last 12 months, September 2025 to August 2026 | EIA-861M, 2026 months preliminary | 15.91¢ per kWh |
| August 20263 only | EIA-861M, preliminary | 16.16¢ per kWh2 |
All three are average revenue per kWh: what homes paid in total, divided by the kilowatt-hours they used. That includes the fixed monthly charge, fuel cost adjustments and riders, and leaves out most taxes. No line on a Duke bill carries this price, and a small user pays more per kWh than the average because the fixed charge is spread over fewer kWh.
On the 2025 figure, Duke Energy Indiana ranked 14th highest of the 32 Indiana utilities with 10,000 or more residential customers, 6.1% below the Indiana average (15.96¢ per kWh4, all providers). Nationally it ranked tied for 87th lowest of 177 large utilities, close to their median of 15.07¢ per kWh, and 15.7% below the national average for investor-owned utilities1.
The 2025 increase, set against Indiana's other large utilities
Between 2024 and 2025 the residential average rose 17.5%, from 12.75¢ per kWh5 to 14.98¢ per kWh. The other four investor-owned utilities rose by less: NIPSCO +15.5%, CenterPoint Energy Indiana South +12.9%, AES Indiana +6.8% and Indiana Michigan Power +5.2%1. Statewide, the residential average rose 8.1%4.
The change reordered the table. In 2024, Duke's homes paid less on average than those of AES Indiana, the Indianapolis utility (12.75¢ per kWh against 13.75¢ per kWh5); in 2025 they paid more (14.98¢ per kWh against 14.69¢ per kWh). Duke still averaged well below NIPSCO (22.05¢ per kWh), CenterPoint Energy Indiana South (19.78¢ per kWh) and Indiana Michigan Power (17.16¢ per kWh1).
Source: EIA-861 annual electric power industry report, 2025 final. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.
Show the numbers
| Utility | average residential price (bundled customers) |
|---|---|
| AES Indiana (IN) | 14.69¢ |
| Duke Energy Indiana (IN) | 14.98¢ |
| Indiana Michigan Power (IN) | 17.16¢ |
| CenterPoint Energy Indiana South (IN) | 19.78¢ |
| NIPSCO (IN) | 22.05¢ |
Duke Energy Indiana's base rates are set by the Indiana Utility Regulatory Commission (IURC). In 2024 the company petitioned the commission to increase its rates and charges, and the commission held public field hearings on the request, including one in New Albany in August 2024 (IURC media advisory). The filings and the commission's decisions are in its online case portal. Fuel costs and other trackers are reviewed in separate proceedings, so the average can move between rate cases; the guide to rate increases explains how.
2026 so far: higher again
EIA's monthly survey shows the increase continuing. The last 12 months (September 2025 to August 2026) averaged 15.91¢ per kWh, above the 2025 figure. In August 2026, Duke's residential average was 16.16¢ per kWh, +8.6% against August 2025. For the same month the Indiana average changed by +5.0%3, AES Indiana's by +9.6% and Indiana Michigan Power's by −14.6%2.
Source: EIA-861M monthly sales and revenue by utility; EIA, Electric Power Monthly / EIA-861M sales and revenue by state. Residential revenue divided by kWh in each month, as reported to EIA's monthly survey (EIA-861M; months since January 2026 preliminary).
Show the numbers
| Month | Duke Energy Indiana (¢/kWh) | kWh per customer | Bill per customer |
|---|---|---|---|
| January 2025 | 12.86¢ | 1,378 | $177.12 |
| February 2025 | 12.71¢ | 1,233 | $156.74 |
| March 2025 | 17.01¢ | 805 | $136.92 |
| April 2025 | 16.93¢ | 742 | $125.64 |
| May 2025 | 16.35¢ | 699 | $114.34 |
| June 2025 | 15.06¢ | 1,009 | $151.99 |
| July 2025 | 14.06¢ | 1,245 | $175.10 |
| August 2025 | 14.88¢ | 1,098 | $163.40 |
| September 2025 | 17.15¢ | 860 | $147.51 |
| October 2025 | 16.23¢ | 730 | $118.49 |
| November 2025 | 16.43¢ | 850 | $139.61 |
| December 2025 | 14.01¢ | 1,256 | $176.04 |
| January 2026 | 14.51¢ | 1,341 | $194.54 |
| February 2026 | 15.07¢ | 1,151 | $173.54 |
| March 2026 | 17.48¢ | 824 | $144.16 |
| April 2026 | 17.63¢ | 704 | $124.12 |
| May 2026 | 17.82¢ | 719 | $128.15 |
| June 2026 | 15.99¢ | 931 | $148.91 |
| July 2026 | 15.25¢ | 1,200 | $182.98 |
| August 2026 | 16.16¢ | 1,079 | $174.48 |
A single month is preliminary and moves with the season, so the 12-month figure is the steadier guide. EIA's next release, on November 24, 2026, adds September 2026.
Why the bill rose faster than the price
The average monthly bill went from $120.26 in 2024 to $148.57 in 2025 (+23.5%), a larger rise than the price increase because homes also used more: 992 kWh1 a month on average, against 943 kWh5 the year before.
Duke's homes use more than the Indiana average. The state figure was 938 kWh a month in 2025, AES Indiana's 941 kWh and NIPSCO's 672 kWh. That is why NIPSCO's much higher price produced almost the same bill: $148.15 a month, against $148.571 at Duke and an Indiana average of $149.726.
Source: EIA-861 annual electric power industry report, 2025 final. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.
Show the numbers
| Utility | average monthly residential bill |
|---|---|
| AES Indiana (IN) | $138.29 |
| Indiana Michigan Power (IN) | $146.33 |
| NIPSCO (IN) | $148.15 |
| Duke Energy Indiana (IN) | $148.57 |
| CenterPoint Energy Indiana South (IN) | $176.99 |
Over the last 12 months (September 2025 to August 2026) the average Duke bill was $154.41 for 971 kWh2 a month.
January, not July, is the costly month
Statewide, use per home peaked in July 20263 over the last 12 months (September 2025 to August 2026). Duke Energy Indiana peaked in winter: use per home was highest in January 2026 (1,341 kWh, an average bill of $194.54) and lowest in April 2026 (704 kWh, $124.12). AES Indiana also peaked in January 2026; NIPSCO, CenterPoint and Indiana Michigan Power peaked in July 20262.
Source: EIA-861M monthly sales and revenue by utility. kWh per residential customer in each month (EIA-861M; months since January 2026 preliminary). The table adds the average bill and price for the month.
Show the numbers
| Month | kWh per customer | Bill per customer | ¢/kWh |
|---|---|---|---|
| September 2025 | 860 | $147.51 | 17.15¢ |
| October 2025 | 730 | $118.49 | 16.23¢ |
| November 2025 | 850 | $139.61 | 16.43¢ |
| December 2025 | 1,256 | $176.04 | 14.01¢ |
| January 2026 | 1,341 | $194.54 | 14.51¢ |
| February 2026 | 1,151 | $173.54 | 15.07¢ |
| March 2026 | 824 | $144.16 | 17.48¢ |
| April 2026 | 704 | $124.12 | 17.63¢ |
| May 2026 | 719 | $128.15 | 17.82¢ |
| June 2026 | 931 | $148.91 | 15.99¢ |
| July 2026 | 1,200 | $182.98 | 15.25¢ |
| August 2026 | 1,079 | $174.48 | 16.16¢ |
Electric heating is common in Indiana. Statewide, 31.4%7 of households heated mainly with electricity in the Census Bureau's 2025 survey, and space heating took 19% of the electricity Indiana homes used in EIA's 2020 household survey (a pandemic year), a share ranked tied for 6th highest8 among the states. For a home heated with a heat pump or electric furnace, the coldest weeks bring the largest bills.
A wide territory, shared in every county
EIA's service-territory records place Duke Energy Indiana in 71 counties, more than any other Indiana utility, and in every one of them (719) another distribution utility also reports customers. Rural electric membership corporations and city utilities serve between and inside its areas, so a county or ZIP code does not tell you which utility serves an address: Duke's service-area map decides by street. EIA publishes no city prices.
Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 71 counties. Counts whole counties even where the utility serves only part of one; check the utility's own service-area map for an address.
The neighbours differ by ownership type. Indiana's electric cooperatives together averaged 14.98¢ per kWh in 2025 and its public power utilities 11.96¢ per kWh, against 16.62¢ per kWh for all investor-owned utilities. Among utilities with 10,000 or more residential customers, City of Logansport had the lowest average (10.31¢ per kWh1).
Smart meters everywhere, time-of-use almost nowhere
Advanced meters covered 99.8% of Duke Energy Indiana's residential meters in 2025, against 81.6% statewide. They can record use by the hour, yet only 73 residential customers were on a time-of-use rate. Indiana Michigan Power, with a smaller customer base, reported 13,17111. The time-of-use guide explains when such a rate lowers a bill and when it raises one.
Rooftop solar is more common on Duke's system than across Indiana as a whole: 4,228 residential net-metered installations with 33.3 megawatts of capacity, 5.2 per 1,000 customers. The statewide figure was 3.7 per 1,000, AES Indiana's 2.2 and CenterPoint's 6.211.
Outages
Duke Energy Indiana's customers averaged 267 minutes without power in 2025 including major event days, fewer than the Indiana average of 345 minutes. Excluding major events the figure was 108 minutes (Indiana: 125 minutes), and customers saw 1.26 interruptions on average (Indiana: 1.3812), measured under IEEE 1366. One stormy year can shift these numbers widely.
Business customers and the rest of Duke Energy
Duke Energy Indiana's 110,631 commercial customers paid 11.75¢ per kWh on average in 2025, slightly less per kWh than homes, with an average monthly bill of $765.44. Its 2,601 industrial accounts paid 8.64¢ per kWh, and across all 921,804 accounts the average was 11.84¢ per kWh. The utility sits in the MISO1 wholesale market.
Within Duke Energy, Indiana's 2025 residential average fell between Duke Energy Kentucky (13.86¢ per kWh) and the default-service average at Duke Energy Ohio (16.83¢ per kWh), across a group range from 13.41¢ per kWh to 18.36¢ per kWh1. The Duke Energy page compares all its utilities, and electricity in Indiana covers the state.
Questions and answers
What are Duke Energy Indiana's rates per kWh?
Its residential customers paid an average of 15.91¢ per kWh2 over the last 12 months (September 2025 to August 2026, 2026 months preliminary) and 14.98¢ per kWh1 in calendar 2025. Both are total residential revenue divided by kWh sold, so the monthly customer charge, fuel adjustments and riders are folded in. The energy charges in Duke's Indiana tariff are a different, narrower number.
Did Duke Energy Indiana raise rates in 2026?
The average price kept rising. In August 20263 the residential average was 16.16¢ per kWh, +8.6%2 against August 2025 (preliminary), after a rise from 12.75¢ per kWh5 to 14.98¢ per kWh1 between 2024 and 2025. Approved rate changes are filed with the Indiana Utility Regulatory Commission.
What is the average Duke Energy Indiana bill?
$148.57 a month in 2025 for 992 kWh1, up from $120.265 in 2024. Over the last 12 months (September 2025 to August 2026) it was $154.41, with the highest month, January 2026, at $194.542.
Does Duke Energy Indiana offer time-of-use rates?
It reported a residential time-of-use program to EIA for 2025, with 7311 customers enrolled out of 808,5721. Peak hours and prices are set in its tariff, not in EIA data.
Can I choose another electricity supplier instead of Duke in Indiana?
No. Indiana has no residential retail choice: 0.0%1 of residential customers bought from a competitive supplier in 2025. The utility whose lines serve an address supplies it.
Related pages
Sources
- EIA-861 annual electric power industry report, 2025 final; table Sales_Ult_Cust_2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861M monthly sales and revenue by utility; table sales_ult_cust_2025 and _2026; released October 23, 2026. www.eia.gov
- EIA, Electric Power Monthly / EIA-861M sales and revenue by state; table sales_revenue.xlsx (EPM Table 5.6.A); January 2001 to 2026-08; months since January 2026 preliminary; released October 23, 2026. www.eia.gov
- EIA, Historical state data, annual sales, revenue and customers; table HS861 2010-.xlsx; 2010-2025, final; released October 7, 2026. www.eia.gov
- EIA-861 annual electric power industry report, 2024 final; table Sales_Ult_Cust_2024; 2024, final (file updated December 3, 2025); released December 3, 2025. www.eia.gov
- EIA-861 2025, average monthly bill by state; table Average_Bill_2025; 2025, final; released October 7, 2026. www.eia.gov
- Census Bureau, American Community Survey 2025 1-year estimates, house heating fuel, table B25040; 2025; released October 29, 2026. data.census.gov
- EIA, Residential Energy Consumption Survey 2020, state data; table CE4.1.EL.ST, CE5 state tables, state highlights; released June 28, 2023. www.eia.gov
- EIA-861 2025, service territory; table Service_Territory_2025; 2025, final; released October 7, 2026. www.eia.gov
- Census Bureau, Cartographic boundary file, counties; table cb_2025_us_county_5m; cb_2021_us_county_5m; 2025 (2021 for Connecticut). www.census.gov
- EIA-861 2025, advanced meters, dynamic pricing and net metering; table Advanced_Meters, Dynamic_Pricing, Net_Metering 2025; 2025, final; released October 7, 2026. www.eia.gov
- EIA-861 2025, reliability; table Reliability_2025; 2025, final; released October 7, 2026. www.eia.gov
Margins of error (±) are at the 90% confidence level. A difference is called significant only when it passes the Census Bureau's test at that level. How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.