Meta, the parent company of Facebook, announced Friday it had signed nuclear power agreements with TerraPower, Oklo, and Vistra Corp. to supply electricity for Prometheus, a 1-gigawatt artificial intelligence data center cluster under construction in New Albany, Ohio. The three deals will support up to 6.6 gigawatts of new and existing clean energy capacity by 2035, Meta said. Financial terms of all three agreements were not disclosed.

The agreements mark one of the largest corporate nuclear energy commitments by a technology company, but come as electricity ratepayers in the mid-Atlantic region are already paying higher bills tied to data center construction — and as a Princeton energy expert warns that bringing Prometheus online without dedicated new power sources will push rates higher still.

The three deals

Under the agreement with Vistra Corp., Meta will purchase more than 2.1 gigawatts of power from three existing nuclear plants: Beaver Valley in Pennsylvania and Davis-Besse and Perry in Ohio. Vistra said the deals provide the certainty it needs to ask federal regulators for 20-year license renewals for the three reactors. Electricity from the plants will continue to flow through the mid-Atlantic grid for all customers, Vistra said.

The deal with TerraPower will provide funding for the development of two new Natrium-design reactor units capable of generating up to 690 megawatts of firm power, with delivery targeted as early as 2032. The agreement also grants Meta rights to energy from up to six additional Natrium units producing 2.1 gigawatts, targeted for delivery by 2035.

Meta’s agreement with Oklo covers the development of a 1.2-gigawatt power campus in Pike County, Ohio, to support Meta’s data centers in the region. Oklo counts OpenAI chief executive Sam Altman as one of its largest investors.

The grid pressure

Tech companies have faced pressure in the stressed mid-Atlantic electric grid — which encompasses Ohio and Pennsylvania — to build new power sources that cover the full electricity demands of their new data centers. Jesse Jenkins, an assistant professor of engineering at Princeton University who specializes in energy systems, said that bringing Prometheus online without a dedicated new power source would increase electricity rates across the entire mid-Atlantic region.

Ratepayers in the mid-Atlantic are already paying higher electricity bills to support new and proposed data centers, according to the Associated Press.

“These projects add reliable and firm power to the grid, reinforce America’s nuclear supply chain, and support new and existing jobs to build and operate American power plants,” Meta said in a statement.

Background

Meta announced Prometheus — which spans multiple data center buildings and is anticipated to come online in 2026 — in July 2025. A single gigawatt, by a general industry standard for utilities, can power about 750,000 homes, meaning the 6.6 gigawatts Meta said the three deals will support by 2035 would be sufficient to power the equivalent of roughly 5 million homes.

The nuclear deals follow a separate 20-year power purchase agreement Meta announced with Constellation Energy in June 2025.