Three Mile Island Nuclear Plant Reboot Fast-Tracked to 2027
- On Wednesday, Constellation Energy announced the Crane Clean Energy Center may restart in 2027, a year earlier than planned, due to fast-tracked grid connection approval.
- Microsoft's 20-year PPA, signed last September, revived the plant in 2027, driven by AI data center demand, after its 2019 economic shutdown.
- Constellation Energy's early restart plans leverage a fast-tracked grid connection, enabling the Crane Clean Energy Center to potentially reopen in 2027, a year ahead of schedule.
- This development underscores the broader resurgence of nuclear power in the U.S., marking the first fully shuttered plant to restart amid rising AI-driven electricity demand.
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60 Articles
Three Mile Island nuclear plant fast-tracked to reopen for AI energy demand
Decades after a partial meltdown shut it down, Pennsylvania’s Three Mile Island is set to reopen a year early to help power Microsoft data centers, part of a nationwide push to revive nuclear energy for tech-driven electricity needs. NBC News got exclusive access as the plant prepares to support the growing demands of AI and other digital industries.

Microsoft describes Three Mile Island plant as a once-in-a-lifetime opportunity
In the shadow of Three Mile Island’s iconic cooling towers, state Rep. Tom Mehaffie recalled Wednesday how his father, 50 years earlier, built a career and a life around the nuclear power plant. “When Constellation left and this plant shut…
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