The tech industry’s need for more power for data centers running artificial intelligence is now so desperate that companies are turning to nuclear disaster sites, despite the potential risks. Microsoft Corp.

Microsoft just signed a deal to revive the shuttered Three Mile Island nuclear power plant. If approved by regulators, the software maker would have exclusive rights to 100 percent of the output for its AI data center needs.

The data centers that train the large language models behind AI consume unimaginable amounts of energy, and the stakes are high for big tech companies to