Ohio was one of the first states where a utility wrote a tariff just for data centers. AEP Ohio’s data center tariff and study process now shape every large site in its territory, and other Ohio utilities face similar demand. The upside is clarity: a buyer knows the fees, the minimum bill and the process. Invariant lists a 300 MW approved site in Ohio on 345 kV and tracks other Midwest brownfields.
Before you start
- AEP Ohio routes data center requests of 25 MW and up through a formal process, with study fees of $10,000, $50,000 or $100,000 depending on size.
- Its data center tariff sets minimum demand charges and long terms. Model them before price.
- Ohio is in PJM, where long-term load forecasts are rising on data center demand.
- Approved capacity is the scarce asset. Our Ohio site has 300 MW approved for 1H 2027.
Data center sites available in Ohio
These Ohio sites are in Invariant’s current inventory. Specs are as marketed by the owner and are checked against utility documents before any introduction.
| Region | Power | Land | Timing |
|---|---|---|---|
| Ohio | 300 MW approved | 300+ acres | 1H 2027 |
| Midwest | 85 MW brownfield | ~20 acres | Now |
Exact locations, the utility documents behind each MW figure and pricing are shared on a call. We also hold sites that are not listed publicly; owners ask for discretion and a site that is shopped everywhere loses value.
AEP Ohio’s data center process
AEP Ohio requires site control and a stated load ramp before it studies a data center request of 25 MW or more. Fees step up at 50 MW and 100 MW. It runs studies in tranches and targets completion in 45 to 60 days. The tariff itself sets minimum billing and contract terms for new data center loads.AEP Ohio
The Berkeley Lab and Brattle review of large-load tariffs found terms like these spreading nationally. Ohio was early, so its sites already carry the costs that other states are still adding.Lawrence Berkeley National Laboratory and The Brattle Group
Where Ohio sites come from
Farmland near 345 kV corridors, former industrial plants and retired generation sites make up most of what we see. The constraint is not land. It is getting an approved study and a ramp that fits.U.S. Energy Information Administration
How to screen a Ohio data center site
- Confirm the serving utility and the grid operator, then ask which document backs the MW: a will-serve letter, a load study or a signed agreement.
- Check that the substation has headroom for your load under contingency. Distance to a line is not capacity.
- Screen the county and any city that could annex the site for moratoriums, recent denials and the zoning path.
- Work out usable acres after wetlands, floodplain, slope, easements and setbacks, and reserve room for the substation.
- Kill sites that are already claimed, operating for someone else, contaminated or owned by an environmental liability buyer before spending on parcels.
Invariant runs this screen on every Ohio site before an introduction and grades the result A, B or C by power evidence. Tell us your MW and date and we will send the Ohio sites that fit, including off-market ones.
Browse data center sites by size and state
Questions that come up.
What is the AEP Ohio data center tariff?
A tariff for new data center loads in AEP Ohio’s territory that sets minimum demand charges and long contract terms, paired with a formal study process for requests of 25 MW and up.AEP Ohio
Is there an Ohio data center site with approved power?
Yes. Invariant lists a 300 MW approved site on 345 kV with power in 1H 2027 and 300+ acres. Details are shared on a call.
How do I find a data center site in Ohio?
Start from power evidence, not land: confirm the serving utility, the document behind the MW and substation headroom, then screen local approval and usable acres. Invariant does this for buyers and currently lists Ohio sites at 300 MW approved, 85 MW brownfield. Book a call or call (628) 220-8972.
Sources and references.
Site specifications are as marketed by the seller and are checked against utility documents before any introduction. Public sources checked on . The location, equipment, and operating plan determine which requirements apply to a project.
- AEP OhioData center tariff ↗
- PJM Inside LinesPJM's updated 20-year forecast continues to see significant long-term load growth ↗
- Lawrence Berkeley National Laboratory and The Brattle GroupElectricity rate designs for large loads (August 2026) ↗
- PacesGrid planning for data centers and transmission investment ↗
- U.S. Energy Information AdministrationOhio state energy profile ↗