# Bethpage Power Plant

NYISO asset profile · https://askthegrid.com/assets/facilities/bethpage-power-plant

Calpine Eastern Corp - Nassau County - NYISO

Bethpage Power Plant (EIA 50292) is a 239.6 MW operating natural-gas facility located at 939 South Broadway in Hicksville, Nassau County, New York. The facility consists of six generators: GEN1, GEN2, and GEN3 are natural-gas combined-cycle units that began operating in August 1989; GEN5 is a natural-gas combustion turbine that began operating in July 2002; and GEN6 and GEN7 are natural-gas combined-cycle units that began operating in July 2005. The plant evolved from a 1989 Grumman Aerospace cogeneration project through a joint venture involving General Electric, Brooklyn Union Gas, and J. Makowski Associates. Calpine acquired a 45% interest in December 1997 from Brooklyn Union Gas and the remaining 55% in 1998. The facility operates in the NYISO balancing area and is interconnected through Long Island Power Authority infrastructure at 69 kV. It has supplied seasonal peaking capacity and baseload power to Long Island under long-term power purchase agreements.

## Metrics

- **Nameplate capacity:** 239.60000000000002 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 50292 — plant-50292

## Facts

- **Technology:** Natural Gas Fired Combined Cycle, Natural Gas Fired Combustion Turbine
- **Operator:** Calpine Eastern Corp

## Related parties

- **Parent company:** Constellation Energy Corporation — ultimate parent company ([source](https://www.constellationenergy.com/))
- **Parent company:** Energy Capital Partners — immediate predecessor corporate owner ([source](http://ecpgp.com/equity/portfolio/calpine))
- **Power marketer / commercial participant:** Calpine Energy Services LP — NYISO market participant and power marketer ([source](https://www.calpine.com/))
- **Equipment supplier / joint venture partner:** General Electric — original project joint-venture participant and equipment supplier
- **Former owner / joint venture partner:** Brooklyn Union Gas — original project joint-venture participant; predecessor owner
- **Offtaker / land lessor:** Grumman Aerospace — original host, land lessor, and thermal/power customer
- **Former owner:** Long Island Lighting Company — original excess-power purchaser
- **Lender:** Calyon New York Branch — project lender
- **Equipment supplier:** Siemens Westinghouse — steam turbine generator equipment supplier

## Sources

- [calpine.com](http://calpine.com/wp-content/uploads/2026/02/CPN-PORT-1_Q12026.pdf) — calpine.com · public_source — Source retained for exact-record publication review.
- [ecoreporter.de](http://ecoreporter.de/artikel/172005-meldung-calpine-corp-closes-1231-million-project-finance-facility-for-its-bethpage-energy-center-01-07-2005) — ecoreporter.de · public_source — Source retained for exact-record publication review.
- [ecpgp.com](http://ecpgp.com/equity/portfolio/calpine) — ecpgp.com · public_source — Source retained for exact-record publication review.
- [en.wikipedia.org](http://en.wikipedia.org/wiki/Bethpage_Energy_Center) — en.wikipedia.org · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/bethpage-power-plant
Website: [Calpine Eastern Corp](https://www.calpine.com/)

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