# Massena Energy Facility

NYISO asset profile · https://askthegrid.com/assets/facilities/massena-energy-facility

PowerTransitions LegacyOps II LLC - St Lawrence County - NYISO

The Massena Energy Facility is a natural-gas-fired combined-cycle electric generating facility located on Alcoa Power Canal Road in Massena, New York. It comprises two combined-cycle generator sections (GEN1 at 66.5 MW and GEN2 at 35.6 MW, configured as a one-on-one combined-cycle block) plus a 2 MW standby distillate-fuel internal-combustion generator. Originally developed by Sithe Energies as a cogeneration facility to supply steam to Alcoa's neighboring industrial operations, the steam line has since been disconnected and capped. The facility now operates as a wholesale electric-generation merchant plant in the NYISO market, connected to National Grid's ALCOA Substation at 115 kV (NYISO PTID 23902).

## Metrics

- **Nameplate capacity:** 102.1 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 54592 — plant-54592

## Facts

- **Technology:** Natural Gas Fired Combined Cycle
- **Operator:** Alliance Energy New York, LLC

## Related parties

- **Investor:** Massena Energy Holdings, LLC — 90% limited-partner ownership vehicle 2012–2026
- **Investor:** Massena Energy Holdings GP, LLC — 10% general-partner ownership vehicle 2012–2026
- **Former owner / developer / construction contractor:** Sithe Energies, Inc. — Original developer and constructor (1991–1993); owner and operator (1993–2006)
- **Former owner:** RPL Holdings, Inc. — Owner 2006–2009
- **Former owner:** MEG Development Company LLC — Owner 2009–2012
- **Equity investor:** Partners Group Holding AG — Ultimate investment sponsor controlling PowerTransitions funds
- **Equipment supplier:** ABB — Gas turbine manufacturer (GT8 model) ([source](https://www.abb.com/))
- **Equipment supplier:** Alstom; Siemens — Generator / turbine equipment suppliers
- **EPC contractor:** Zurn; NEPCO — EPC contractors

## Sources

- [allianceenergy.net](http://allianceenergy.net/massena-power-plant.html) — allianceenergy.net · public_source — Source retained for exact-record publication review.
- [govt.westlaw.com](http://govt.westlaw.com/nyreg/Document/I2a3e829bc9b811e0b63a0000845b8d3e?contextData=(sc.Default)&originationContext=documenttoc&transitionType=CategoryPageItem&viewType=FullText) — govt.westlaw.com · public_source — Source retained for exact-record publication review.
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B2F62F58A-4808-4B7A-A65C-5C4DE9169F0E%7D) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/massena-energy-facility
Website: [PowerTransitions LegacyOps II LLC](https://power-transitions.com/)

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