Is Ohio’s rapid data center growth driving up electricity costs?

Ohio’s data center industry, which is expanding as companies build facilities to support cloud computing and artificial intelligence, is linked to higher residential electric bills.

This led to growing environmental concerns and regulatory discussions about wastewater management, according to The Columbus Dispatch.

Energy experts found that Ohio’s data center boom is a significant factor in rising electricity prices for residents.

Central Ohio alone is home to more than 130 data centers, accounting for more than 200 across the state. The massive electrical loads required to operate these facilities are widening the gap between electricity demand and supply.

The Dispatch reported that residential retail electric prices in Ohio and nationwide increased by several percentage points in 2025, with some estimates placing state increases in the double digits.

According ot PJM Interconnection, the grid operator serving Ohio, a substantial portion of the increased demand forecast — more than 5,000 megawatts — is attributable to the growth of the data centers. This number is significantly higher than the supply currently supports, creating a supply-demand imbalance that raises wholesale electricity prices and household bills.

The Ohio Capital Journal reported earlier this month that capacity costs — the component of electricity bills tied to ensuring adequate generation during peak-demand times — have risen in recent auctions due to the expansion of data centers.

In 2024 and 2025, capacity prices reached levels well above historical averages, with the experts’ projects indicating that future auctions could yield further increases unless new generation capacity comes online.

Ohio.News previously reported on other problems and complications that data centers bring to the Buckeye State, such as groundwater contamination from centers that use large volumes of water for cooling and concentrate wastewater before disposal.

Some Ohio communities, particularly in central Ohio, where data center density is highest, have temporarily paused new construction to assess potential environmental impacts, including effects on local water quality.

As a result, Ohio regulators began considering new wastewater permitting rules that could affect how data centers discharge cooling water.

A draft general permit under review by the Ohio Environmental Protection Agency could allow facilities without access to centralized sewer systems to discharge treated wastewater directly into lakes, rivers, and streams under certain conditions, such as cooling the effluent or removing any added chemicals.

The proposal has drawn scrutiny from lawmakers and environmental advocates who argue that broader permits may not account for variations in discharge characteristics or adequately protect water resources.