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EnergySavings · Michigan · Comparison

Great Lakes Energy Coop vs Indiana Michigan Power Co: who pays less in Michigan?

Data as of: EIA-861 annual 2024 (released 2025) · EIA monthly state prices February 2026 · EIA weekly heating-fuel survey Mar 30, 2026 · retail-choice registry reviewed Jun 2026 · URDB tariffs pulled Jun 2026. Page generated 2026-06-12.

Indiana Michigan Power Co customers paid less: an average 17.00¢/kWh in 2024 versus 19.17¢/kWh at Great Lakes Energy Coop (EIA-861) — a gap of 2.17¢/kWh, worth about $234 per year at typical usage (10,800 kWh/yr). Their territories meet in 1 MI county (Allegan). You cannot switch wires companies — the territory is set by your address, though in Michigan both utilities' customers can shop the supply portion of the bill.

Side by side (MI, EIA-861)

Great Lakes Energy Coop vs Indiana Michigan Power Co — residential averages from federal EIA-861 filings
MetricGreat Lakes Energy CoopIndiana Michigan Power Co
2024 average price, ¢/kWh19.1717.00
2023 average price, ¢/kWh17.7115.74
Annual cost at 10,800 kWh, $/yr$2,070$1,837
Residential customers (2024)120,645112,600
OwnershipCo-opInvestor-owned
Counties served in MI266

Average price = residential revenue ÷ sales (bundled service): the all-in price customers actually paid, including supply, delivery and riders. Profiles: Great Lakes Energy Coop · Indiana Michigan Power Co · Michigan overview.

Where the territories meet

Both utilities file EIA-861 service territory in: Allegan county (MI, 2024).

Adjoining or overlapping territory in a county does not mean households there can pick between the two — service maps are parcel-level and fixed. The county overlap mainly matters when choosing where to live or comparing town-level costs.

Can you actually choose between them?

No — not for delivery. Distribution territories are exclusive and set by address; Great Lakes Energy Coop and Indiana Michigan Power Co do not compete for the same meters. Michigan does have retail supply choice: customers of either utility may buy the supply portion from a licensed third-party supplier, or stay on the utility's default supply rate. An offer only saves money if it beats your utility's price to compare (printed on the bill); compare offers at michigan.gov/mpsc. The price gap above mainly matters when choosing where to live, comparing towns, or benchmarking your bill.

Questions people ask

Is Great Lakes Energy Coop cheaper than Indiana Michigan Power Co?
No — in 2024 Great Lakes Energy Coop customers averaged 19.17 cents/kWh versus 17.00 for Indiana Michigan Power Co (EIA-861). Indiana Michigan Power Co was cheaper by 2.17 cents, about $234 per year at 10,800 kWh.
Can I switch from Great Lakes Energy Coop to Indiana Michigan Power Co?
No — distribution territories are exclusive and set by address; you cannot pick between the two wires companies. Michigan does allow supply choice: either utility's customers can shop the supply portion at michigan.gov/mpsc if an offer beats the utility's price to compare.
Why is Great Lakes Energy Coop more expensive than Indiana Michigan Power Co?
EIA-861 averages reflect everything customers actually paid — supply costs, delivery rates, riders, and surcharges across each territory. Differences in generation mix, grid investment, storm costs, and customer density between Great Lakes Energy Coop and Indiana Michigan Power territory all feed the 2.17-cent gap.
About these numbers. Rates shown are averages computed from federal regulatory filings (EIA Form 861) and public tariff databases — confirm with your utility before making decisions; your actual rate depends on your tariff, usage, and riders. Distribution utility is determined by address and generally cannot be chosen; in retail-choice states you may choose your supplier for the supply portion of the bill. Savings figures use 10,800 kWh/yr (US average residential usage) and are estimates, not quotes. EnergySavings is an independent data project by CertiHomes and is not affiliated with any utility, supplier, or government agency.