Indiana Michigan Power Co. electricity rates
Investor-owned utility · Michigan
Indiana Michigan Power Co. is a for-profit, investor-owned utility regulated by the state utility commission, serving 112,973 homes in Michigan. Its residential customers pay an average of 16.68¢/kWh including fixed and delivery charges, 7% less than the U.S. average.
Rate basis: EIA-861M monthly utility data, 12 months ending 2026-07.
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Indiana Michigan Power Co. bill estimates
| Monthly use | At average all-in rate | Base tariff charges* |
|---|---|---|
| 500 kWh | $83.40 | $72.28 |
| 1,000 kWh | $166.80 | $137.07 |
| 1,500 kWh | $250.20 | $201.86 |
| 2,000 kWh | $333.60 | $266.64 |
*Residential (effective 2018-09-01, $7.50/month customer charge), energy and fixed charges from the OpenEI Utility Rate Database. Riders, fuel adjustments and taxes are often billed separately, so real bills usually land closer to the all-in column. Calculate your bill.
Indiana Michigan Power Co. residential rate plans
| Plan | Effective | Customer charge | Energy charges |
|---|---|---|---|
| Residential | 2018-09-01 | $7.50 | 12.96¢ |
| Residential - TODtime-of-use | 2018-09-01 | $10.08 | 2.9¢ (12am–7am, 9pm–12am) · 8.3¢ (7am–9pm) — summer weekdays |
| Residential - TODtime-of-use | 2018-09-01 | $13.08 | 10.0¢ (12am–7am, 9pm–12am) · 15.3¢ (7am–9pm) — summer weekdays |
| Residential - TOD2time-of-use | 2018-09-01 | $10.08 | 5.3¢ (12am–2pm, 6pm–12am) · 13.2¢ (2pm–6pm) — summer weekdays |
| Residential - TOD2time-of-use | 2018-09-01 | $13.08 | 12.3¢ (12am–2pm, 6pm–12am) · 20.2¢ (2pm–6pm) — summer weekdays |
| Residential - PEVtime-of-use | 2018-08-31 | $13.15 | 10.0¢ (12am–7am, 9pm–12am) · 15.3¢ (7am–9pm) — summer weekdays |
| Residential RS-OPEStime-of-use | 2018-08-31 | $9.15 | 9.5¢ (12am–7am, 8pm–12am) · 14.8¢ (7am–8pm) — summer weekdays |
| Residential | 2018-09-01 | $8.18 | 5.91¢ |
Source: OpenEI U.S. Utility Rate Database. Rates change. Check the linked tariff or your bill for current figures.
Indiana Michigan Power Co. rate history
2015–2025: +61% change in the average residential rate (10.66¢ → 17.20¢). Annual EIA-861 data.
Outages & reliability
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Reliability history
| 2025 | Indiana Michigan Power Co. | Michigan avg | U.S. avg |
|---|---|---|---|
| Outage minutes per customer (SAIDI) | 932 | 669 | 266 |
| Outages per customer (SAIFI) | 1.83 | 1.43 | 1.34 |
| Average restoration time (CAIDI) | 8 hr 30 min | — | — |
| Outage minutes excluding major storms | 142 | 160 | 121 |
Outages in counties served (2025)
From ORNL EAGLE-I, which tracks customers without power every 15 minutes. These counts cover every utility in each county. Weighted across Indiana Michigan Power Co.'s counties, customers averaged 34 hr 10 min without power.
| County | Outage min/customer | Days with outages | Peak customers out | Worst day |
|---|---|---|---|---|
| Cass | 12,993 | 133 | 11,912 | 2025-03-31 |
| Berrien | 5,397 | 166 | 19,751 | 2025-05-16 |
| Van Buren | 3,277 | 112 | 19,203 | 2025-05-16 |
| Kalamazoo | 2,129 | 85 | 51,658 | 2025-05-16 |
| St Joseph | 1,639 | 77 | 7,034 | 2025-03-31 |
| Allegan | 862 | 71 | 14,042 | 2025-05-16 |
Indiana Michigan Power Co. service area
Indiana Michigan Power Co. serves 6 counties in Michigan and 55 ZIP codes.
Allegan, Berrien, Cass, Kalamazoo, St Joseph, Van Buren
Cities: Kalamazoo, Portage, Niles, Sturgis, Benton Harbor, Saint Joseph, Three Rivers, Fair Plain, Eastwood, Dowagiac, Comstock Northwest, Buchanan, Benton Heights, Paw Paw Lake, Paw Paw, Vicksburg, Hartford, Bridgman, Constantine, Mattawan, New Buffalo, Lawton, Decatur, Berrien Springs, Cassopolis, Watervliet, Three Oaks, Schoolcraft, White Pigeon, Coloma, Shorewood-Tower Hills-Harbert, Edwardsburg, Lake Michigan Beach, Marcellus, Stevensville
Programs, smart meters & solar
| Smart meters (AMI) for homes | 100% |
| Customers with daily usage data online | 112,638 |
| Time-based rate programs | Time-of-use rates |
| Homes on time-based rates | 5,444 |
| Net-metered solar homes | 622 |
| Home batteries paired with solar | 128 |
| Homes in demand response (e.g. thermostat rebates) | 13,520 |
| Residential efficiency incentives paid (2025) | $1,060,000 |
| Residential energy saved by programs | 9,144 MWh |
Indiana Michigan Power Co. at a glance
| Ownership | Investor-owned utility |
| Services | — |
| Commercial rate | 12.98¢/kWh |
| Industrial rate | 12.01¢/kWh |
| Retail revenue (2025) | $374,168,200 |
| Electricity sold (2025) | 2,628,459 MWh |
| Balancing authority | PJM |
| EIA utility ID | 9324 |
Other utilities in Michigan
Frequently asked questions
What is Indiana Michigan Power Co.'s electricity rate?
Indiana Michigan Power Co. residential customers pay an average of 16.68¢ per kWh, all charges included (EIA-861M monthly utility data, 12 months ending 2026-07). That's 21% below the Michigan average of 21.05¢ and 7% below the U.S. average.
What is the average Indiana Michigan Power Co. electric bill?
About $138 a month. The average Indiana Michigan Power Co. home uses 830 kWh a month. At 1,000 kWh the bill would be about $167.
How many customers does Indiana Michigan Power Co. have?
Indiana Michigan Power Co. serves 112,973 residential customers and 132,635 customers in total in Michigan, across 6 counties.
How reliable is Indiana Michigan Power Co.?
In 2025, the average Indiana Michigan Power Co. customer was without power for 15 hr 32 min (SAIDI) over 1.83 interruptions (SAIFI), including major storms. Excluding major event days it was 2 hr 22 min. The Michigan average was 11 hr 9 min and the U.S. average 4 hr 26 min.
Does Indiana Michigan Power Co. offer time-of-use rates?
Yes. The OpenEI rate database lists 6 time-of-use residential plans, including Residential - TOD. Running big appliances off-peak can cut their cost. Pick the plan in the calculator above to see by how much.
Does Indiana Michigan Power Co. offer net metering for solar?
Indiana Michigan Power Co. had 622 residential net-metered customers in 2025 with 5.1 MW of capacity and 128 solar-paired batteries. Estimate solar savings at this utility's rate.
Sources: EIA-861 2025 and EIA-861M (through July 2026), OpenEI URDB, ORNL EAGLE-I, U.S. Census. Methodology. Spot an error? Rates change often, so confirm with Indiana Michigan Power Co. before making decisions.