WASHINGTON, Nov 18 (Reuters) – The Trump administration said on Tuesday it has loaned Constellation Energy Corp (CEG.O), opens new tab $1 billion to restart its nuclear reactor at a Pennsylvania plant formerly known as Three Mile Island.

Constellation signed a deal in late 2024 with Microsoft (MSFT.O), opens new tab to restart the 835-megawatt reactor, which shut in 2019, and which would offset Microsoft’s data center electricity use. The other unit at the plant, renamed the Crane Clean Energy Center, shut in 1979 after an accident that chilled the nuclear power industry.