This deal is meant to keep the cost of new substations and transmission lines for AWS's data centers off the bills of regular I&M customers by making the data center pay for capacity it reserves, not just power it actually uses.
no figure yet
Indiana Michigan Power, Indiana
Indiana Michigan Power proposed base rate reduction and rate freeze
Pending Base rate case before the Indiana Utility Regulatory Commission.
-$7a month, estimate
on a typical bill, if approved as asked
5% of the average Indiana bill of $133 (EIA, 2024); your own bill scales with your usage. Our arithmetic, not the utility's figure; the methodology page shows how.
FiledAug 26, 2026
Hearingnot scheduled yet
Decisionpending
On billsafter the decision
Indiana Michigan Power filed a new rate case in late August 2026 proposing to cut base rates for all customer classes by about 5 percent, which the company describes as one of the largest base rate reductions of any utility in the country, while freezing other rates for three years. The company credits new large data center customers with helping offset costs enough to allow the cut. The IURC is expected to decide around June 2027, with any bill change appearing around late spring or early summer 2027.
What it means for your bill: This is a proposed decrease, not an increase; I&M says new large industrial and data center customers are helping pay for the grid, letting it lower rates for everyone else, but the case still needs IURC approval.
- Status
- Pending
- Utility
- Indiana Michigan Power
- Commission
- Indiana Utility Regulatory Commission
- Filed
- August 26, 2026
- Requested
- -5% residential
- Data center linked
- Yes. The filing ties part of the cost or the tariff design to data center load.
- Last checked
- August 29, 2026
How to comment
The Indiana Utility Regulatory Commission accepts written comments on the docket while the case is open, and holds public hearings on major cases. Commission site. Office of Utility Consumer Counselor represents households in this case.
Sources
- Indiana Michigan Power files rate case with IURC, works to reduce base rate for Hoosiers, ABC57, 2026-08-27
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