Microsoft Taps Three Mile Island Nuclear Plant To Power AI – Slashdot

The data centers that train all the large language models behind AI consume unimaginable amounts of energy, and the stakes are high for big tech companies to ensure they have enough power to run those plants. That’s why Microsoft is now throwing its weight behind nuclear power. From a report: The tech giant on Friday signed a major deal with nuclear plant owner Constellation Energy to restart its closed Three Mile Island plant by 2028 to power its data centers. The Constellation plant, infamous for melting down in 1979, closed in 2019 after failing to garner enough demand for its energy amid competition with cheaper alternatives like natural gas, and solar and wind power. Constellation said it plans to spend $1.6 billion to revive its reactor, pending regulatory approval. The financial terms of the deal were not disclosed. Microsoft agreed to purchase all of the power from the reactor over the next 20 years, a Constellation spokesperson told TechCrunch. Once restored, the reactor promises a capacity of 835 megawatts.