Завершение эксплуатации АЭС Зайон: от вывода из эксплуатации до передачи лицензии.

Decommissioned nuclear power plant in Lake County, Illinois

The Zion Nuclear Power Station was retired on February 13, 1998. The plant had not been in operation since February 21, 1997, after a control room operator inserted the control rods too far during a shut down of Reactor 1 and then withdrew the control rods without following procedures or obtaining supervisory permission. Reactor 2 was already shut down for refueling at the time of the incident. ComEd concluded that the plant could not produce competitively priced power because it would have cost $435 million to order steam generators which would not pay for themselves before the plant's operating license expired in 2013.

All nuclear fuel was removed permanently from the reactor vessel and placed in the plant's on site spent fuel pool by March 9, 1998. The facility was put in long term safe storage (SAFSTOR) until decommissioning work was resumed by EnergySolutions in 2010. The Nuclear Regulatory Commission approved the temporary transfer of Exelon's (ComEd's parent company) license to EnergySolutions of Salt Lake City. Contaminated materials of the dismantled facility were shipped to ZionSolutions' disposal site in Utah and to WCS in Texas for intensive separation. The used nuclear fuel was transferred from the spent fuel pool into dry casks and placed into a newly constructed Independent Spent Fuel Storage Installation (ISFSI) at the Zion site. The transfer of fuel was completed in January 2015. In 2011, EnergySolutions promised investors about $200 million profit from the Zion decommissioning project at margins of as much as 15 to 20 percent. Subsequently, this was lowered to 5 to 10 percent, because the $800 million trust fund ran out of money. A month later, the CEO told them that "the project wasn't about profit but advertising for bigger fish." On February 14, 2013, a small fire broke out at the shuttered Zion nuclear plant, but authorities said it was put out with one extinguisher and there were no radiation leaks or risks to the public. Workers involved in the decommissioning of the plant were using torches to cut bolts when some grease began to smoke and produce small flames, said Mark Walker of EnergySolutions, the contractor handling the decommissioning. A January 7, 2017 Chicago Sun Times article reported that the closing of the nuclear plant strongly and negatively affected the City of Zion economically. On November 16, 2023, the NRC issued the confirming amendments that identify Constellation Energy Generation as the licensee.