US nuclear plant Three Mile Island, the site of the worst nuclear accident in American history, is to restart operations in a deal to sell power to Microsoft, Constellation Energy said Friday.
The firm announced the 20-year deal would involve the restart of the Unit 1 reactor, "which operated at industry-leading levels of safety and reliability for decades before being shut down for economic reasons exactly five years ago today."
The Unit 1 reactor was not involved in the 1979 partial nuclear meltdown at the site in Pennsylvania.
US media reported that Microsoft will harness the energy to fuel its AI capabilities, a rapidly growing sector that requires large amounts of power.
Constellation Energy said the reactor would go back online in 2028.