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December 5, 2025

Three Mile Island (TMI)

DOE
DOE Announces $1B Loan for Constellation’s Crane Energy Center
DOE awarded Constellation a $1 billion loan for its Crane Clean Energy Center project, which will cut financing costs for the nuclear unit restart.
Constellation Energy
Constellation Moves Reactor Restart Target Forward to 2027
Constellation Energy said the former Three Mile Island could come back online as the Crane Clean Energy Center a year earlier than initially expected.
© RTO Insider 
PJM Selects 51 Projects for Expedited Interconnection Studies
PJM selected 51 projects to receive expedited interconnection studies through its Reliability Resource Initiative, adding 11,793 MW of nameplate capacity to the next study cycle.
Constellation Energy
Constellation Reports Solid 2024 Financials, Expects Better in 2025
Constellation Energy turned in better than projected financials for 2024 as it continued to meet the demand for emissions-free energy with the nation’s largest nuclear fleet.
Jakec, CC BY-SA 4.0, via Wikimedia Commons
With Three Mile Island Restart, Debate Continues on Co-located Load in PJM
Data centers and other concentrated electric consumers increasingly seek to buy their power directly through nuclear generators in PJM.
DOE
Constellation to Reopen, Rename Three Mile Island Unit 1

Constellation Energy plans to reopen Three Mile Island Unit 1 under a power purchase agreement with Microsoft to sell about 835 MW to serve the company’s data centers.

Nuclear Subsidies Still on the Table in Pennsylvania
An attempt to save Pennsylvania’s Three Mile Island fell apart, but that doesn’t mean state lawmakers will abandon support for nuclear subsidies altogether.
Exelon to Close Three Mile Island
Exelon announced it will permanently shut down the nearly 45-year-old Three Mile Island nuclear plant in Londonderry Township, Pa., by Sept. 30.
Pa. Lawmaker Contends TMI Rescue Unlikely
The fate of Three Mile Island looks bleaker as Pennsylvania lawmakers wrapped up hearings that considered subsidizing the state’s nuclear fleet.
Pennsylvania Joins US Climate Alliance
Pennsylvania joined the U.S. Climate Alliance after releasing its own action plan to achieve a 26% reduction in statewide greenhouse gas emissions by 2025.

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