A deal between Constellation Energy and Microsoft will restart Pennsylvania’s Three Mile Island, the site of the country’s worst nuclear accident, to help power the tech giant’s growing artificial intelligence ambitions.

Microsoft is in the midst of a deal that would bring the infamous Three Mile Island nuclear power plant back to life, according to reporting by The Washington Post. If the name sounds familiar, it’s because the Pennsylvania plant was home to a partial meltdown of one of its reactors back in 1979.

The data centers that train the large language models behind AI consume unimaginable amounts of energy, and the stakes are high for big tech companies to