||Transitioning to SAFSTOR
Site Status Summary & Spent Fuel Status
The Three Mile Island Nuclear Station Unit 1 (TMI-1) was a 2,568 MWt pressurized water reactor that began operation in 1974 and is owned by Exelon Generation, LLC. By an indirect transfer, the owner’s name is changing to Constellation Energy Company in early 2022.
Spent fuel is being moved into dry storage, with expected completion in summer 2022. NRC will continue to provide licensing oversight and inspections of the plant until the plant is completely decommissioned, including inspections of the Independent Spent Fuel Storage Installation (ISFSI) until the spent fuel is permanently removed from the site and the license is terminated.
Significant Decommissioning Licensing Documents
Major Technical or Regulatory Issues
Estimated Date for Closure