Microsoft's 20-year power purchase agreement with Constellation Energy to restart the Three Mile Island nuclear plant marks a pivotal moment in the intersection of technology and sustainable energy, aiming to meet the rising energy demands of AI-driven data centers while contributing to carbon reduction goals. This initiative promises significant environmental and economic benefits, including job creation and substantial tax contributions, but also raises concerns about public subsidies and nuclear safety. The project underscores a broader trend among tech giants towards sustainable energy practices, potentially signaling a revival of the nuclear power industry in the U.S.