Microsoft funds Three Mile Island restart (2024)
Microsoft and Constellation signed a 20-year power purchase agreement to restart Unit 1 at Pennsylvania's Three Mile Island, shut since 2019. Constellation committed to invest roughly $1.6 billion in the restart, renamed the Crane Clean Energy Center, with a target of online by 2028.
The deal became the template for tech companies funding nuclear power to meet AI data center demand.
It helped spark a wave of nuclear power purchase agreements from Amazon, Google, and Meta.
Same Constellation and same model: a tech company signs a long-term PPA so the grid gets more clean power, rather than co-locating servers at the plant.
