Google and Constellation Energy announced a 20-year power purchase agreement that will add 890 megawatts of nuclear capacity to the PJM grid, the largest US power market. The deal funds more than $4.3 billion in upgrades at 11 Constellation reactors in Illinois, Pennsylvania and New Jersey.
Rather than building new reactors, the upgrades modernize turbines, steam generators and digital control systems to squeeze extra output from existing plants. The first uprate is expected to deliver power by 2028, and the project is expected to create about 7,200 construction jobs while sustaining roughly 4,400 existing ones. A separate 15-year energy supply agreement covers a further 2,700 MW.
The companies also agreed a five-year technology alliance using Google Cloud and Gemini Enterprise for site selection and permitting, asset health monitoring and grid security. It shows how AI data center demand is pushing big tech to secure firm, carbon-free power directly.