The power purchase agreement will also extend operations at Constellation’s Clinton Clean Energy Center in Illinois for two decades and replace an expiring state tax credit.

Constellation Energy stock, which has fluctuated wildly this year in the boom and bust of the AI hype cycle, briefly broke out Tuesday in response to news it signed a 20-year deal to sell power to Meta Platforms.

Constellation Energy Corp. agreed to sell power from an Illinois nuclear plant to Meta Platforms Inc. as artificial intelligence sends power demand soaring.