New data centres larger than 25 MW must pay for at least 85 percent of the energy they expect to need each month, even if they use less, to cover the cost of infrastructure needed to bring electricity to the facility.
Also active in Ohio: FirstEnergy's Ohio Edison, Cleveland Electric Illuminating and Toledo Edison jointly filed a parallel Data Center Tariff (DCT) in June 2026 (docket 26-0697-EL-ATA), and Duke Energy Ohio has proposed its own Data Center Tariff, Rate DC (docket 26-0755-EL-ATA).
Named Projects Already Underway
| Customer | Location | Details |
|---|---|---|
| AWS | New Albany, OH | part of a $7.8 billion AWS investment in Central Ohio and $23 billion statewide by 2030; AEP Ohio contracted two large customers for 100 MW of onsite fuel-cell generation to let data centres begin operating while the grid expands |
| Undisclosed hyperscale campus | Piketon, OH | $33 billion project proposing up to 10 GW of generation, with partner SB Energy paying $4.2 billion for new transmission to avoid raising rates for existing customers |
Figures compiled from the Edison Electric Institute's "Large Load Projects and Tariffs" (September 2026) member-company summary and public regulatory filings. Confirm current tariff terms directly with AEP Ohio and the relevant state public utility commission before relying on any figure for a capital decision.
Weighing Ohio against another state or a Canadian province with a different rate and interconnection picture entirely? Run both sides of the comparison through our licensed AI data centre cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.
Model This State on Your Own Site
Every figure above comes from the same power-cost and tariff dataset behind the SCR AI Build Configurator — a licensed, embeddable widget that models seven data centre build configurations against all nine Canadian provinces and all 50 US states plus DC, returning capital expenditure by line item, energy cost, revenue by commercial structure, EBITDA and payback.
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