James A. FitzPatrick Clean Energy Center

The New York Power Authority's official timeline states that construction began on the James A. FitzPatrick Nuclear Power Plant (820,000 kW) on the shores of Lake Ontario near Oswego.

The James A. FitzPatrick Nuclear Power Plant entered commercial operation.

Entergy announced that FitzPatrick would be closed due to economic pressures, despite the operating license running through October 17, 2034.

Exelon Generation agreed to acquire ownership and assume operations of Entergy's James A. FitzPatrick Nuclear Power Plant under an agreement totaling $110 million. The transaction was facilitated by New York's Clean Energy Standard (CES), approved the same week, which recognizes the zero-emission attributes of nuclear power plants.

The transfer of James A. FitzPatrick from Entergy to Exelon Generation was completed. The plant's federal operating license was transferred, and Exelon assumed ownership and management of operations. Approximately 600 employees transferred to Exelon.

The NRC approved a direct transfer of the James A. FitzPatrick Renewed Facility Operating License DPR-59 and the associated Independent Spent Fuel Storage Installation (ISFSI) general license from Exelon Generation Company, LLC to its wholly owned subsidiary, Exelon FitzPatrick, LLC. Exelon Generation remained responsible for operation and maintenance.

Exelon completed the separation of its competitive generation and customer-facing energy businesses into Constellation Energy, now an independent, publicly traded company. Constellation Energy Generation, LLC (formerly Exelon Generation Company, LLC) is now the owner and operator of James A. FitzPatrick. Exelon no longer retains ownership interest in Constellation.

The NRC issued an exemption in response to Constellation's December 7, 2023 request, allowing timely-renewal protection if Constellation submits a subsequent license-renewal application (SLRA) at least 3 years prior to the expiration of the existing operating license. If an acceptable SLRA is submitted by October 17, 2031, the current license will not expire until the NRC makes a final determination on the SLRA. The current license expires October 17, 2034.