Constellation to Launch Crane Clean Energy Center, Restoring Jobs and Carbon-free Power to the Grid
Constellation signs its largest-ever power purchase agreement with Microsoft, a deal that will restore TMI Unit 1 to service and keep it online for decades; add approximately 835 megawatts of carbon-free energy to the grid; create 3,400 direct and indirect jobs and deliver more than

Constellation announced today the signing of a 20-year power purchase agreement with Microsoft that will pave the way for the launch of the Crane Clean Energy Center (CCEC) and restart of Three Mile Island Unit 1. (Photo: Business Wire)
“Powering industries critical to our nation’s global economic and technological competitiveness, including data centers, requires an abundance of energy that is carbon-free and reliable every hour of every day, and nuclear plants are the only energy sources that can consistently deliver on that promise,” said Joe Dominguez, president and CEO, Constellation. “Before it was prematurely shuttered due to poor economics, this plant was among the safest and most reliable nuclear plants on the grid, and we look forward to bringing it back with a new name and a renewed mission to serve as an economic engine for
The Unit 1 reactor is located adjacent to TMI Unit 2, which shut down in 1979 and is in the process of being decommissioned by its owner, Energy Solutions. TMI Unit 1 is a fully independent facility, and its long-term operation was not impacted by the Unit 2 accident. To prepare for the restart, significant investments will be made to restore the plant, including the turbine, generator, main power transformer and cooling and control systems. Restarting a nuclear reactor requires
"This agreement is a major milestone in Microsoft's efforts to help decarbonize the grid in support of our commitment to become carbon negative. Microsoft continues to collaborate with energy providers to develop carbon-free energy sources to help meet the grids' capacity and reliability needs," said Bobby Hollis, VP of Energy, Microsoft.
A recent economic impact study commissioned by the Pennsylvania Building & Construction Trades Council found that the new CCEC will create 3,400 direct and indirect jobs and add more than 800 megawatts of carbon-free electricity to the grid. The report, produced by The Brattle Group, also found that restarting the plant will add
To ensure that the local community fully participates in the economic benefits of restarting the facility, Constellation has committed an additional
“The CCEC will support thousands of family-sustaining jobs for decades to come,” said Rob Bair,
“Pennsylvania’s nuclear energy industry plays a critical role in providing safe, reliable, carbon-free electricity that helps reduce emissions and grow Pennsylvania’s economy,” said Governor Josh Shapiro. “Under the careful watch of state and federal authorities, the Crane Clean Energy Center will safely utilize existing infrastructure to sustain and expand nuclear power in the Commonwealth while creating thousands of energy jobs and strengthening Pennsylvania’s legacy as a national energy leader. My Administration will continue to work to cut energy costs and ensure the reliability of our energy grid so that Pennsylvanians can have access to affordable power made right here in
“This is a valuable opportunity to invest in clean, carbon-free and affordable power -- on the heels of the hottest year in Earth’s history,” said Pennsylvania State Representative Tom Mehaffie (106th District). “This will transform the local economy and presents a rare opportunity to power our economy with reliable clean energy that we can count on.”
Public support for the restart is strong in
"The start of the Crane Clean Energy Center represents an important milestone for our nation, the region, and the people of the great state of
Renewed interest in nuclear energy has spread globally as nations seek to electrify their economies to support the digital economy and address the climate crisis. Among their many attributes, nuclear plants can reliably produce carbon-free energy 24/7 in all weather conditions and run for up to two years without needing to be refueled.
“I’m proud to see the launch of the Crane Clean Energy Center,” said
Constellation purchased TMI Unit 1, in 1999. Before it was retired prematurely for economic reasons in 2019, the plant had a generating capacity of 837 megawatts, which is enough to power more than 800,000 average homes. In its last year of operation, the plant was producing electricity at maximum capacity 96.3 percent of the time – well above the industry average. The plant had an annual payroll of about
The plant will be renamed the Crane Clean Energy Center in honor of Chris Crane, who was CEO of Constellation’s former parent company and a true titan of the nuclear industry. Crane, who passed away in April 2024, was a staunch advocate for America’s commercial nuclear power industry and the environmental and economic benefits it delivered for our nation. He was instrumental in both shaping the industry and rebuilding public support for nuclear technology. Crane helped build the Institute for Nuclear Power Operations (INPO) and served on the boards of the Nuclear Energy Institute (NEI) and the World Association of Nuclear Operators (WANO).
What others are saying about the Crane Clean Energy Center:
Nuclear Energy Institute President and CEO Maria Korsnick: “The Crane Clean Energy Center is a fitting honor for a nuclear industry leader and will bring significant benefits to
About Constellation
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Paul
Constellation Communications
667-218-7700
paul.adams@constellation.com
Source: Constellation Energy Corporation