In a groundbreaking move, Microsoft has sealed a deal with Constellation Energy to restart a unit at Three Mile Island, the site of the most severe nuclear accident in US history. This initiative aims to support the burgeoning demand for artificial intelligence by powering data centers.
Constellation Energy announced on Friday that the Unit 1 reactor, which had been shut down for economic reasons five years to the day, will resume operations under a 20-year agreement. Notably, Unit 1 was unaffected by the 1979 meltdown that occurred at Unit 2 of the facility in Pennsylvania.
This revival marks the first time a nuclear power plant in the US is being restarted after closure. The move is a response to the soaring demand from data center operators driven by the rapid expansion of AI technologies.
The planned revival involves an investment of approximately $1.6 billion, with expectations to have the plant operational by 2028. The reactor will supply 835 megawatts of power to Microsoft, significantly aiding its commitment to run all its global data centers on clean energy by 2025.
Constellation's CEO, Joe Dominguez, highlighted the critical role of nuclear energy in America's future, emphasizing its necessity in achieving carbon-free power supply. Despite the challenges, this initiative is seen as a key step towards sustainable energy solutions for the tech industry.
However, while this move will propel Microsoft closer to its climate goals, challenges remain, particularly in reducing emissions from the materials used in data centers such as concrete, steel, and chips.
This initiative not only underscores the increasing reliance on nuclear power for sustainable energy but also marks a significant shift in addressing the massive energy requirements of the AI-driven future.