Electricity & utility
Ohio Manufacturers' Association Energy Group v. Public Utilities Commission of Ohio
Where it stands
Case lifecycle
- ✓
Filed
A petition or complaint is filed, opening the case.
- ✓
Answer
The defendant is served and files an answer or a plea to the jurisdiction.
- ✓
Discovery
The parties exchange documents, written questions, and depositions.
- ✓
Motions
Dispositive motions — summary judgment or a plea to the jurisdiction — are briefed and heard.
- ✓
Trial
The case is tried to a judge or jury.
- ✓
Judgment
The court enters a final judgment.
- 7
Appeal — current stage
The judgment is challenged in an appellate court.
- 8
Resolved
The case is finally resolved and closed.
Appeal of the utility commission's order; briefing complete, awaiting oral argument.
What the case is about
An Ohio industrial-energy group is asking the Ohio Supreme Court to overturn a state-approved "data center tariff" for the utility AEP Ohio. The tariff requires large new data centers (25 megawatts and up) to pay for at least 85% of the power capacity they reserve for 12 years, even if they use less. The challengers argue the commission's approval was unlawful and rests on speculation about future demand. The commission is defending the tariff, which it approved in 2025.
Why it matters
It is the first appellate test of a data-center-specific electricity tariff — the same "who pays for the grid" fight Texas is heading into under its own new large-load rules.
- Court
- Supreme Court of Ohio
- Docket / cause no.
- 2025-1458
- Jurisdiction
- Ohio (state supreme court appeal)
- Plaintiffs
- Ohio Manufacturers' Association Energy Group, representing large industrial energy users
- Defendants
- Public Utilities Commission of Ohio, defending AEP Ohio's data-center tariff
- Operator
- AEP Ohio (the utility whose data-center tariff is challenged)
- Relief sought
- Reversal of the commission's approval of the data-center tariff
Last action: Briefing completed; awaiting oral argument · March 24, 2026
Summary is our own words and describes only what the public filings assert. Nothing here characterizes the merits or predicts an outcome, and no party is described as liable before a court has ruled. This is general information, not legal advice. Follow the links above for the public record.