# James A. FitzPatrick Clean Energy Center

NYISO nuclear_power_plant · https://askthegrid.com/nyiso/assets/plant/james-a-fitzpatrick-clean-energy-center

James A. FitzPatrick is a single-unit boiling-water nuclear reactor located in Scriba, Oswego County, New York, on the shores of Lake Ontario. Construction began in 1969, and the plant entered commercial operation on July 28, 1975. Originally developed and operated by the New York Power Authority in partnership with Niagara Mohawk Power Corporation, the facility was sold to Entergy Corporation in November 2000. Following a planned 2015 closure announcement, the New York Clean Energy Standard facilitated the plant's continued operation. Exelon subsequently transferred ownership to its subsidiary Exelon FitzPatrick, LLC in November 2017, and the plant was included in Constellation Energy when Exelon separated its generation business in February 2022. Constellation Energy Generation, LLC currently operates the facility. The plant's renewed NRC operating license (DPR-59, docket 50-333) expires October 17, 2034, with a subsequent license-renewal pathway available through 2054. The facility generates up to 842 MW of carbon-free electricity and is interconnected to the New York Power Authority transmission system at 345 kV.

## Key facts

- Technology: Nuclear
- Power capacity: 883.3 MW

## Grid and market context

- ISO/RTO: NYISO
- Balancing authority: NYISO

## Source-backed facts

- Site.location.county: Oswego County, New York — nrc.gov · confidence: review_required
- Site.location.town: Scriba, NY (6 miles NE of Oswego, NY) — nrc.gov · confidence: review_required
- Site.location.address: 268 Lake Road, Oswego, New York 13126 — constellationenergy.com · confidence: review_required
- Site.acres: 702 acres — nrc.gov · confidence: review_required
- Reactor.type: Boiling Water Reactor (BWR) — nrc.gov · confidence: review_required
- Reactor.vendor: General Electric Type 4 — nrc.gov · confidence: review_required
- Reactor.containment type: Wet, Mark I — nrc.gov · confidence: review_required
- Reactor.licensed thermal power mwt: 2536 MWt — nrc.gov · confidence: review_required
- License.operating.issued date: 1974-10-17 — nrc.gov · confidence: review_required
- License.renewed.issued date: 2008-09-08 — nrc.gov · confidence: review_required
- License.operating.expires: 2034-10-17 — nrc.gov · confidence: review_required
- Interconnection.voltage kv: 345 kV — nrc.gov · confidence: review_required
- Interconnection.primary substation: Scriba Substation — nrc.gov · confidence: review_required
- Interconnection.secondary substation: Edic Substation — nrc.gov · confidence: review_required
- Energy.annual generation 2017 mwh: 6183000 MWh — en.wikipedia.org · confidence: review_required

## Timeline

- 1969 — Construction began
  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.
  Source: nypa.gov (https://www.nypa.gov/About/Timeline)
- 1975-07-28 — Commercial operation began
  The James A. FitzPatrick Nuclear Power Plant entered commercial operation.
  Source: en.wikipedia.org (https://en.wikipedia.org/wiki/James_A._FitzPatrick_Nuclear_Power_Plant)
- 2015-11-02 — Planned closure announced
  Entergy announced that FitzPatrick would be closed due to economic pressures, despite the operating license running through October 17, 2034.
  Source: powermag.com (https://www.powermag.com/entergy-announces-closure-of-fitzpatrick-nuclear-power-plant/)
- 2016-08-09 — Entergy-Exelon sale agreement announced
  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.
  Source: entergy.com (https://www.entergy.com/news/exelon-assume-ownership-operation-entergyjamesfitzpatrick-nuclear-power-plant-upstate-new-york)
- 2017-03-31 — Ownership transfer to Exelon completed
  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.
  Source: entergy.com (https://www.entergy.com/news/entergy-completes-sale-jamesfitzpatrick-nuclear-power-plant-exelon)
- 2017-11-07 — License transferred to Exelon subsidiary
  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.
  Source: nrc.gov (https://www.nrc.gov/docs/ML1724/ML17240A048.pdf)
- 2022-02-01 — Exelon separation: Constellation Energy becomes independent
  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.
  Source: investors.constellationenergy.com (https://investors.constellationenergy.com/static-files/511deeb6-33b8-4d05-a75f-0a941b93c32f)
- 2024-11-12 — NRC approves subsequent license-renewal exemption
  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.
  Source: federalregister.gov (https://www.federalregister.gov/documents/2024/11/19/2024-26921/constellation-energy-generation-llc-james-a-fitzpatrick-nuclear-power-plant-exemption)

## Sources

- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B3C921560-816D-4142-A242-21AB5612F809%7D) — documents.dps.ny.gov · tier authoritative
- [en.wikipedia.org](https://en.wikipedia.org/wiki/James_A._FitzPatrick_Nuclear_Power_Plant) — en.wikipedia.org · tier public_source
- [investors.constellationenergy.com](https://investors.constellationenergy.com/static-files/511deeb6-33b8-4d05-a75f-0a941b93c32f) — investors.constellationenergy.com · tier public_source
- [constellationenergy.com](https://www.constellationenergy.com/about/locations/james-a-fitzpatrick-clean-energy-center.html) — constellationenergy.com · tier public_source
- [entergy.com](https://www.entergy.com/news/entergy-completes-sale-jamesfitzpatrick-nuclear-power-plant-exelon) — entergy.com · tier public_source
- [entergy.com](https://www.entergy.com/news/exelon-assume-ownership-operation-entergyjamesfitzpatrick-nuclear-power-plant-upstate-new-york) — entergy.com · tier public_source
- [federalregister.gov](https://www.federalregister.gov/documents/2024/11/19/2024-26921/constellation-energy-generation-llc-james-a-fitzpatrick-nuclear-power-plant-exemption) — federalregister.gov · tier authoritative
- [nrc.gov](https://www.nrc.gov/docs/ML0623/ML062360088.pdf) — nrc.gov · tier authoritative
- [nrc.gov](https://www.nrc.gov/docs/ML1510/ML15104A084.pdf) — nrc.gov · tier authoritative
- [nrc.gov](https://www.nrc.gov/docs/ML1704/ML17041A274.pdf) — nrc.gov · tier authoritative
- [nrc.gov](https://www.nrc.gov/docs/ML1724/ML17240A048.pdf) — nrc.gov · tier authoritative
- [nrc.gov](https://www.nrc.gov/info-finder/reactors/fitz) — nrc.gov · tier authoritative
- [nypa.gov](https://www.nypa.gov/About/Timeline) — nypa.gov · tier authoritative
- [powermag.com](https://www.powermag.com/entergy-announces-closure-of-fitzpatrick-nuclear-power-plant/) — powermag.com · tier public_source

## Data quality

- Entity identity is well-established through official regulatory documents (NRC licenses, Federal Register notices) and official owner web domain. Capacity varies by metric and source: NRC nameplate rating 883.0 MW (2003), Constellation official operating capacity 842 MW (current), NYISO market schedule 838.2 MW, NYPA historical design 820 MW. No conflict blocks publication; these reflect different rating methodologies. FitzPatrick; the price is not allocated between the two plants. No separate plant-specific project financing, construction loan, or repowering project was identified. The facility has operated continuously since 1975 under successive ownership. License expiration date is October 17, 2034, not a confirmed retirement date. The facility is operating; no current retirement is identified. Power-uprate licensing conditions were documented in the renewed NRC license, but the specific incremental capacity gain was not stated in the candidate sources. The NRC exemption dated November 12, 2024 allows Constellation to submit a subsequent license-renewal application by October 17, 2031 to obtain timely-renewal protection extending operation potentially through 2054. All major historical ownership and operator changes are documented through official sources: NYPA/Niagara Mohawk (1974–2000), Entergy (2000–2017), Exelon Generation (2017–2022), Constellation Energy (2022–present). Market participation, interconnection details, and balancing authority are clearly documented through NYISO, NRC FSAR, and regulatory filings. Missing disclosure: No documented agreements for power purchase, operations and maintenance contracts, fuel supply, or decommissioning trust fund details specific to FitzPatrick were recovered in the candidate research.

---

Canonical page: https://askthegrid.com/nyiso/assets/plant/james-a-fitzpatrick-clean-energy-center

Source: Ask the Grid — https://askthegrid.com/