Three Mile Island, the site of worst nuclear disaster in the United States, is reopening and will sell the power to Microsoft for its AI efforts.

Three Mile Island, the site of the worst nuclear accident in U.S. history, is opening up once again. Microsoft and Constellation Energy, which owns the plant, have struck a deal that will see the plant’s undamaged reactor resume operations to power Microsoft’s AI data centers.

The 20-year deal with Constellation Energy would kick-start the site of the nation’s worst nuclear accident.