R E Ginna Nuclear Power Plant
Constellation Energy Generation, LLCWayne County
R.E. Ginna Nuclear Power Plant, also marketed as the R.E. Ginna Clean Energy Center, is a single-unit Westinghouse pressurized-water reactor near Ontario in Wayne County, New York. It began commercial operation in July 1970 and is currently operated by Constellation Energy Generation, LLC under NRC Facility Operating License No. DPR-18. The facility can produce up to 576 MW of electricity and is located on 426 acres along the south shore of Lake Ontario. The current operating license expires September 18, 2029, and a subsequent renewal application was filed in June 2026 for an additional 20-year operating term.
Mapped infrastructure geometry associated with this asset.
EIA plant 6122 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 1 | Nuclear | Operating | 614 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 614 MW 578.8 MW summer | Nuclear ST | Jul 1970 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
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Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
Rochester Gas and Electric filed the application for a construction permit and operating license.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Peach Bottom | 2,876.4 MW | PA | |
| Braidwood Generation Station | 2,449.8 MW | IL | |
| Byron Generating Station | 2,449.8 MW | IL | |
| LaSalle Generating Station | 2,340 MW | IL | |
| Limerick | 2,277 MW | PA | |
| Quad Cities Generating Station | 2,018.6 MW | IL | |
| Dresden Generating Station | 2,018.6 MW | IL | |
| Nine Mile Point Nuclear Station | 1,901.1 MW | NY |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioThe NRC issued the construction permit for the R.E. Ginna Nuclear Power Plant.
The NRC issued the initial provisional operating license for the R.E. Ginna Nuclear Power Plant.
EIA-860 lists generator 1 with this operating date.
Ginna Station began commercial operation at 1,300 MWt licensed thermal power and 420 MW net electrical output.
Licensed thermal output increased to 1,520 MWt and net electrical output increased to 490 MW.
The New York Public Service Commission issued an order approving the transfer of Ginna from Rochester Gas & Electric to Constellation Energy entities, finding the sale in the public interest.
Constellation Energy completed its acquisition of the R.E. Ginna Nuclear Power Plant from Rochester Gas and Electric for $401 million (excluding $21.6 million for purchased nuclear fuel and the $202 million decommissioning fund transfer).
NRC Amendment No. 97 approved a 16.8% extended power uprate, increasing steady-state thermal power from 1,520 MWt to 1,775 MWt and the design electrical rating from 470 MW to 585 MW; project was completed during the October 2006 refueling outage.
NRC approved direct transfer of operating authority to Exelon Generation. The order states that ownership was not affected and that no physical or day-to-day operational changes were proposed.
Exelon Generation announced that EDF was exercising its put option to sell its 49.99% indirect interest in Ginna and other jointly owned nuclear facilities. The announcement stated that the purchase would have no impact on plant operations or employees.
Exelon Generation completed its acquisition of EDF's 49.99% interest in CENG for $885 million, making Exelon the sole CENG shareholder and 100% indirect owner of Ginna.
Constellation Energy Generation, LLC submitted an application seeking authorization to operate Ginna for an additional 20 years beyond the current license term, which expires September 18, 2029.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
R E Ginna Nuclear Power Plant reports 614 MW nuclear of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
R E Ginna Nuclear Power Plant is a nuclear facility in Wayne County, NY, participating in the NYISO market.
R E Ginna Nuclear Power Plant is in Wayne County, NY, inside the NYISO balancing area.
R E Ginna Nuclear Power Plant is operated by Constellation Nuclear according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
R E Ginna Nuclear Power Plant reported 4,708.5 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
By capacity, R E Ginna Nuclear Power Plant ranks #54 of 54 operating plants of the same technology nationally. It ranks #3 of 3 in NY.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.