The Trump administration, through the Department of Energy, has issued a $1 billion loan to Constellation Energy Corp to restart the Unit 1 nuclear reactor at Three Mile Island in Pennsylvania, announced earlier today. This move aims to revitalize the iconic nuclear facility and support growing energy demands, particularly for data centers and AI operations.
The loan was finalized and disclosed on Tuesday, November 18, 2025, marking a significant step in efforts to bring the reactor back online after years of dormancy. Constellation Energy, the plant’s owner, will use the funds to refurbish and recommission the unit, which has been shut down since the infamous 1979 accident. The announcement highlights the administration’s push to bolster domestic energy infrastructure and reduce carbon emissions through nuclear power.
Three Mile Island’s Unit 1 reactor, located near Harrisburg, Pennsylvania, has been a focal point of discussions around nuclear energy’s revival. The site gained notoriety after the 1979 incident, which led to increased safety regulations and public wariness. However, recent advancements in nuclear technology and a renewed emphasis on clean energy have spurred interest in restarting such facilities.
The $1 billion loan falls under federal programs designed to support energy projects that enhance grid reliability and sustainability. According to reports, the Department of Energy emphasized that this investment could help meet electricity needs driven by technological sectors, including artificial intelligence and cloud computing, which require substantial, constant power.
Environmental and community concerns are likely to arise, given Three Mile Island’s history. Proponents argue that modern safety protocols and oversight make a repeat of past issues unlikely, while opponents may cite risks and the potential for radioactive waste. The restart process will involve rigorous regulatory reviews and public consultations to address these aspects.
Economically, the project is expected to create jobs and stimulate local economies in Pennsylvania, providing construction, operational, and maintenance roles. It could also serve as a model for other idled nuclear plants across the U.S., encouraging similar initiatives under government support programs.
Looking forward, Constellation Energy must secure additional approvals and potentially address legal challenges before the reactor can resume operations. If successful, the restart could contribute to national energy goals, reducing reliance on fossil fuels and supporting decarbonization efforts in line with global trends.
In summary, this loan represents a pivotal moment for nuclear energy in America, balancing historical lessons with future ambitions for a sustainable power grid.
