Key Takeaways Constellation Energy will restart the Three Mile Island Unit 1 nuclear plant to provide electricity to power Microsoft's data centers.The 20-year deal is part of Microsoft's effort to reduce its carbon footprint,

Microsoft just struck a deal with Constellation Energy to receive energy from the Three Mile Island nuclear site in Pennsylvania. The agreement means that a unit that was shut down five years ago for economic reasons will be restarted.

Constellation Energy (CEG) signs a 20-year power purchase agreement with Microsoft to pave the way to revive a unit of its Three Mile Island nuclear power plant in Pennsylvania.