They're looking to a new generation of small modular reactors, while Microsoft has its own nuclear plans tied to the Three Mile Island plant.

Technology companies are increasingly looking to nuclear power plants to provide the emissions-free electricity needed to run artificial intelligence and other businesses. Microsoft, Google and Amazon have recently struck deals with operators and developers of nuclear power plants to fuel the boom in data centers,

Amazon on Wednesday said that it was investing in small nuclear reactors, coming just two days after a similar announcement by Google.