Three Mile Island Nuclear Plant Reboot Fast-Tracked to 2027

July 01, 2025

The former Three Mile Island nuclear power plant in Pennsylvania may restart in 2027, about a year ahead of schedule after being put on a fast track to connect to the regional grid, executives with the plant's owner Constellation Energy, said on Wednesday.

Constellation struck a deal last September to power Microsoft data centers, paving the way to reopen Three Mile Island, widely known as the site of a partial meltdown in 1979 that chilled the nuclear industry.

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