Amazon says it will spend $20 billion on two data center complexes in Pennsylvania, including one it is building alongside a nuclear power plant that has drawn federal scrutiny.

Amazon plans to invest at least $20 billion in the construction of multiple data center complexes in Pennsylvania, marking what officials called the largest private sector investment in the state’s history.

Amazon.com said on Monday it plans to invest at least $20 billion in Pennsylvania to expand data center infrastructure, adding on to the billions of dollars the technology giant has committed to the expansion of AI technology.