Meta has signed long-term nuclear power deals in the United States, locking in electricity supply for its next phase of data centre expansion.
The company confirmed it has entered 20-year agreements with Vistra to purchase power from three nuclear plants in Ohio and Pennsylvania, while also backing new reactor projects with Oklo and TerraPower.
Shortly after, Oklo shares jumped almost 20%, while Vistra rose about 8% in early trading.
An important part of this development is power security. Data centres are once again driving growth in US electricity demand, something the country has not seen at this scale in two decades.
Meta’s latest agreements are directly tied to powering its planned Prometheus AI supercluster in New Albany, Ohio, a facility that will require electricity on a gigawatt scale.
Under the Vistra deal, Meta will buy power from the Perry and Davis-Besse nuclear plants in Ohio and the Beaver Valley plant in Pennsylvania. Together, the Ohio facilities alone account for 2.176 gigawatts of capacity.
The arrangement will help fund upgrades at the Ohio plants and extend their operating lives. The reactors are licensed to run until at least 2036, while one reactor at Beaver Valley has approval through 2047.
Meta said the agreements, alongside its 2025 deal with Constellation Energy to keep an Illinois reactor running for two decades, will secure up to 6.6 gigawatts of nuclear power by 2035.
To put that into context, a typical nuclear plant produces about 1 gigawatt. In effect, Meta is lining up the equivalent output of six large reactors.
Joel Kaplan, Meta’s chief global affairs officer, described the scale of the development, saying the plans, combined with last year’s Constellation deal, will “make Meta one of the most significant corporate purchasers of nuclear energy in American history.”
Beyond existing plants, Meta is also focusing on newer reactor designs. The company will help fund TerraPower’s development of two advanced reactors expected to generate up to 690 megawatts as early as 2032.
The agreement also gives Meta rights to power from up to six additional TerraPower reactors by 2035. TerraPower was founded by Bill Gates and is positioning its technology as a next-generation alternative to traditional reactors.
TerraPower’s president and chief executive, Chris Levesque, said the deal would bring progress. “The agreement will support rapid deployment of reactors,” he said.
Meta is also partnering with Oklo to develop up to 1.2 gigawatts of nuclear energy in Ohio, with initial output targeted for around 2030. Oklo’s co-founder and chief executive, Jacob DeWitte, said Meta’s backing would support “early procurement and development”.
Small modular reactors, or SMRs, are at the heart of both projects. Supporters say these reactors can be built in factories, shipped to site, and deployed faster and more cheaply over time.
Critics are unconvinced, warning that SMRs may not be able to match the cost efficiency of today’s large nuclear plants. None are yet operating commercially in the United States, and all still require regulatory approvals.
US electricity demand is growing as data centres multiply. Government data shows total power demand is projected to climb from about 4,097 billion kilowatt-hours in 2024 to roughly 4,283 billion by 2026.
Commercial electricity use, which includes data centres, is forecast to grow 3 per cent in 2025 and 5% in 2026, the fastest pace in twenty years. BloombergNEF estimates US data centre demand could reach 106 gigawatts by 2035, far higher than earlier forecasts.
For Meta, nuclear power offers stability that wind and solar cannot yet guarantee on their own. These agreements do not just hedge against rising prices but enhance how large technology firms think about energy, changing direction from short-term contracts to infrastructure-scale commitments.
