# R.E. Ginna Nuclear Power Plant

NYISO asset profile · https://askthegrid.com/assets/facilities/r-e-ginna-nuclear-power-plant

Constellation Energy Generation, LLC - Wayne County - NYISO

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.

## Metrics

- **Nameplate capacity:** 614 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 6122 — plant-6122

## Facts

- **Technology:** Nuclear
- **Operator:** Constellation Energy Generation, LLC

## Related parties

- **Owner / operator:** Constellation Energy Generation, LLC — Owner, licensee, and operator ([source](https://www.constellationenergy.com/about/locations/r-e-ginna-clean-energy-center.html))
- **Former owner:** Rochester Gas and Electric Corporation — Original owner and seller
- **Regulator:** U.S. Nuclear Regulatory Commission — Nuclear regulatory authority ([source](https://www.nrc.gov/))
- **Construction contractor / equipment supplier:** Westinghouse Electric Corporation — Prime contractor; NSSS, turbine, and condenser supplier ([source](https://www.westinghousenuclear.com/))

## Sources

- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7BB3FD61B5-DC60-4366-9F40-F5EF8F3F37AA%7D) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.
- [rbj.net](https://rbj.net/2003/11/28/energy-giant-to-add-ginna-to-holdings/) — rbj.net · public_source — Source retained for exact-record publication review.
- [constellationenergy.com](https://www.constellationenergy.com/news/2019/exelon-generation-to-begin-negotiations-to-acquire-full-ownershi.html) — constellationenergy.com · public_source — Source retained for exact-record publication review.
- [eia.gov](https://www.eia.gov/nuclear/generation/xls/usreact26.xlsx) — eia.gov · authoritative — Source retained for exact-record publication review.

---

Canonical page: https://askthegrid.com/assets/facilities/r-e-ginna-nuclear-power-plant
Website: [Constellation Energy Generation, LLC](https://www.constellationenergy.com/about/locations/r-e-ginna-clean-energy-center.html)

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