CenterPoint Energy Indiana South: electric rates and bills

What CenterPoint's homes pay per kWh, by period

CenterPoint Energy Indiana South is the trade name of Southern Indiana Gas and Electric Company, an investor-owned utility in the southwest corner of the state with 134,700¹ residential customers in 2025. Three figures answer "how much per kWh", and each covers a different period:

• Calendar 2025 (EIA-861, final): 19.78¢ per kWh¹ on average.
• Last 12 months, September 2025 to August 2026 (EIA-861M, 2026 months preliminary): 21.35¢ per kWh.
• August 2026³ alone (preliminary): 22.16¢ per kWh, +0.8%² against August 2025.

All three are average revenue per kWh: what residential customers were billed in total, including the monthly customer charge and the fuel and other adjustment riders, divided by the kWh they used. Most taxes are not in it. It is not a line on the tariff, and a household that uses less than average pays more per kWh than this because the fixed charge is spread over fewer kWh. One month is preliminary and seasonal, so the 12-month average is the steadier guide.

In 2025 the residential average was the 2nd highest among the 32 Indiana utilities with 10,000 or more residential customers, 23.9% above the Indiana average and 11.2% above the national average for investor-owned utilities. Among US utilities with 100,000 or more residential customers it ranked 37th highest of 177; the median of that group was 15.07¢ per kWh. Only NIPSCO averaged more in Indiana, at 22.05¢ per kWh¹.

Indiana's largest average bill

Price and use together make the bill. CenterPoint's homes used 895 kWh a month in 2025, a little under the Indiana average of 938 kWh, so the high price passed almost fully into the bill: $176.99 a month, against $149.72 for Indiana and $150.68⁴ for the US. NIPSCO, with the higher price, had a smaller bill ($148.15) because its homes used only 672 kWh¹.

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

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.

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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

The ranking held over the most recent 12 months (September 2025 to August 2026): $187.74 a month at CenterPoint for 879 kWh, against $153.41 at NIPSCO, $154.41 at Duke Energy Indiana, $141.22 at AES Indiana and $138.88² at Indiana Michigan Power. These are utility-wide averages from EIA; no official source publishes a bill for Evansville or any other city.

The 2025 increase and the base-rate order

From 2024 to 2025 the residential average rose 12.9%, from 17.52¢ per kWh to 19.78¢ per kWh, faster than Indiana's statewide rise of 8.1%⁶ over the same years. Use per home barely moved (886 kWh and 895 kWh a month), so the average bill rose by about as much as the price, from $155.32⁵ to $176.99 (+14.0%¹).

The increase came in the year new base rates were approved. According to the Indiana Office of Utility Consumer Counselor, CenterPoint filed its electric rate case on December 5, 2023, and the Indiana Utility Regulatory Commission approved new rates on February 3, 2025, based on a settlement between the utility and industrial customers that the consumer counselor did not join. Fuel and other costs are recovered through adjustment riders reviewed separately, so the average can also move between base-rate orders. The guide to rate increases explains how these proceedings reach a bill.

CenterPoint Energy Indiana SouthIndiana average, all providers

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).

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Month	CenterPoint Energy Indiana South (¢/kWh)	kWh per customer	Bill per customer
January 2025	16.32¢	1,210	$197.58
February 2025	16.70¢	819	$136.86
March 2025	19.10¢	729	$139.31
April 2025	18.61¢	493	$91.69
May 2025	17.70¢	849	$150.20
June 2025	19.78¢	1,013	$200.47
July 2025	20.28¢	1,422	$288.32
August 2025	21.99¢	1,103	$242.45
September 2025	21.72¢	886	$192.40
October 2025	23.31¢	648	$151.04
November 2025	21.90¢	605	$132.51
December 2025	20.75¢	992	$205.81
January 2026	20.81¢	1,076	$223.87
February 2026	20.49¢	813	$166.60
March 2026	21.79¢	663	$144.48
April 2026	21.95¢	590	$129.52
May 2026	21.15¢	642	$135.89
June 2026	20.70¢	1,088	$225.34
July 2026	20.73¢	1,353	$280.34
August 2026	22.16¢	1,194	$264.62

2026 in the monthly survey

EIA samples CenterPoint every month in its EIA-861M survey. The 12 months to August 2026 averaged 21.35¢ per kWh, above the 2025 figure, and August 2026 came in at 22.16¢ per kWh, +0.8% on August 2025. For that month the Indiana average rose 5.0%³ and Duke Energy Indiana's changed by +8.6%², so CenterPoint's year-on-year change was smaller than both, though from a much higher level. All 2026 months are preliminary; EIA's next release, on November 24, 2026, adds September 2026.

July sets the bill

CenterPoint's homes peak in summer, as Indiana's do overall, while Duke Energy Indiana and AES Indiana peaked in January 2026. Over the last 12 months (September 2025 to August 2026), use per home ran from 590 kWh in April 2026 to 1,353 kWh in July 2026, and the average bill in those two months from $129.52 to $280.34². The statewide July peak was 1,225 kWh³ per home, so CenterPoint's summer peak is higher than the state's even though its annual use is a little lower.

886Sep

648Oct

605Nov

992Dec

1,076Jan

813Feb

663Mar

590Apr

642May

1,088Jun

1,353Jul

1,194Aug

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.

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Month	kWh per customer	Bill per customer	¢/kWh
September 2025	886	$192.40	21.72¢
October 2025	648	$151.04	23.31¢
November 2025	605	$132.51	21.90¢
December 2025	992	$205.81	20.75¢
January 2026	1,076	$223.87	20.81¢
February 2026	813	$166.60	20.49¢
March 2026	663	$144.48	21.79¢
April 2026	590	$129.52	21.95¢
May 2026	642	$135.89	21.15¢
June 2026	1,088	$225.34	20.70¢
July 2026	1,353	$280.34	20.73¢
August 2026	1,194	$264.62	22.16¢

2025 outages: long storms, short ordinary interruptions

CenterPoint's reliability figures for 2025 split sharply. Under the IEEE 1366 standard, its customers averaged 949 minutes without power including major event days, more than the Indiana average of 345 minutes. Excluding major event days, the figure was 83 minutes, below the Indiana figure of 125 minutes on the same basis. Customers had 1.59 interruptions on average, against 1.38⁷ statewide.

Duke Energy Indiana (IN)267

Indiana Michigan Power (IN)283

AES Indiana (IN)295

NIPSCO (IN)532

CenterPoint Energy Indiana South (IN)949

Source: EIA-861 2025, reliability. EIA-861 2025 final. Average revenue per kWh is all charges divided by kWh; it is not a tariff rate.

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Utility	outage minutes per customer (all events)
Duke Energy Indiana (IN)	267
Indiana Michigan Power (IN)	283
AES Indiana (IN)	295
NIPSCO (IN)	532
CenterPoint Energy Indiana South (IN)	949

Major event days are days when outages exceed a statistical threshold set from the utility's own history, typically large storms. The gap between the two figures means almost all of CenterPoint's 2025 outage time fell on such days rather than in everyday interruptions. One severe year can dominate this measure, so a single year says little about the trend.

Evansville and the southwest corner

EIA's service-territory records place CenterPoint in 7 counties: Dubois County, Gibson County, Pike County, Posey County, Spencer County, Vanderburgh County and Warrick County. Vanderburgh County contains Evansville. In 6⁸ of them at least one other distribution utility, such as a rural electric membership corporation or a municipal utility, also reports customers, so the county does not settle which utility serves an address; CenterPoint's own service map does. Indiana's cooperatives averaged 14.98¢ per kWh for homes in 2025 and its public power utilities 11.96¢ per kWh¹, but a home cannot move between territories.

CenterPoint Energy Indiana South onlyCenterPoint Energy Indiana South and other utilitiesOther utilities

Source: EIA-861 2025, service territory; Census Bureau, Cartographic boundary file, counties. EIA-861 2025 service territory: 7 counties. Counts whole counties even where the utility serves only part of one; check the utility's own service-area map for an address.

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County	Other utilities reporting service
Dubois County	Duke Energy Indiana, Dubois Rural Electric Cooperative, Southern Indiana R E C, City of Jasper, City of Huntingburg, Town of Ferdinand
Gibson County	Duke Energy Indiana, AES Indiana, Western Indiana Energy REMC
Pike County	Duke Energy Indiana, AES Indiana, Western Indiana Energy REMC, Dubois Rural Electric Cooperative
Posey County	Duke Energy Indiana, Western Indiana Energy REMC
Spencer County	Southern Indiana R E C, City of Troy
Vanderburgh County	none
Warrick County	Duke Energy Indiana, Southern Indiana R E C, AGC Division of APGI

CenterPoint buys and sells power in the MISO¹ wholesale market, like NIPSCO, Duke Energy Indiana and AES Indiana. Across the Ohio River, Kentucky's utilities are covered on the Kentucky page.

Businesses, meters and rooftop solar

Commercial customers paid 16.70¢ per kWh on average in 2025, with a monthly bill of $825.08 across 19,653 accounts. CenterPoint's 112 industrial accounts paid 9.65¢ per kWh, roughly half the residential average, as large customers taking power at higher voltage usually do. Across all 154,465 accounts the average was 14.23¢ per kWh¹.

Every residential meter was an advanced (AMI) meter in EIA's 2025 count (100.0%, against 81.6% statewide), which records use by the hour and makes time-based billing possible. Any optional time-of-use rate is set out in CenterPoint's tariff rather than in EIA data; the time-of-use guide explains how such rates change a bill. Rooftop solar is more common here than in Indiana as a whole, though still uncommon: 836 net-metered residential installations with 8.9 megawatts, or 6.2 per 1,000 customers against 3.7¹⁰ statewide.

Households struggling with bills can apply for Indiana's federal energy assistance; the state's LIHEAP allocation was $87.1 million¹¹ for fiscal year 2026. For the statewide picture, see electricity in Indiana.