Microsoft to Power AI Data Centers with Revived Three Mile Island Reactor

The tech giant's long-term deal signals a nuclear energy resurgence amid rising electricity demands from AI and data centers.

Constellation Energy plans to spend $1.6 billion to restart a reactor at Pennsylvania's Three Mile Island, which shut down in 2019.
Microsoft has committed to purchasing the reactor's entire electricity output for 20 years to power its data centers.
The move is part of a broader trend where tech companies like Amazon and Oracle are investing in nuclear power to meet their energy needs.
Nuclear energy, once sidelined due to safety concerns and economic challenges, is gaining renewed interest as a reliable, emissions-free power source.
The project aims to address the increasing energy demand from AI and data centers, which could consume up to 9% of U.S. electricity by 2030.