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.

The Three Mile Island Nuclear plant, home of the worst nuclear accident in U.S. history, would restart under a deal in which Microsoft purchases all its power.

The owner of the shuttered Three Mile Island nuclear plant in Pennsylvania will invest $1.6 billion to revive it, agreeing to sell all the output to Microsoft Corp. as the tech titan seeks carbon-free electricity for data centers to power the artificial intelligence boom.

Constellation Energy has signed a 20-year power purchase agreement with Microsoft that will pave the way for restarting its Three Mile Island nuclear power plant, the utility firm said on Friday.

New nuclear power plants in Georgia have helped flip the state's power mix so that electricity from clean energy sources has exceeded fossil fuel electricity output for the first time.

Constellation Energy Corp. says it has signed a 20-year agreement with Microsoft under which the technology company will purchase power from Three Mile Island Unit 1.