# Selkirk Cogen

NYISO power_plant · https://askthegrid.com/nyiso/assets/plant/selkirk-cogen

Selkirk Cogen is a 446 MW natural-gas-fired combined-cycle cogeneration facility located in Selkirk, Town of Bethlehem, Albany County, New York, operating within the NYISO balancing authority area. The facility comprises two electrically independent but thermally integrated units: Selkirk I (approximately 107.2 MW nameplate) and Selkirk II (approximately 338.8 MW nameplate), each consisting of GE Frame 7 combustion turbines and associated heat recovery steam generators with supplemental firing, plus steam turbine generators. The facility generates electricity under long-term contracts and supplies steam to an adjacent industrial customer. It is owned by Selkirk Cogen Partners LLC, an indirect subsidiary of GCE NE-Gen.

## Key facts

- Technology: Natural Gas Fired Combined Cycle
- Power capacity: 434 MW

## Grid and market context

- ISO/RTO: NYISO
- Balancing authority: NYISO

## Source-backed facts

- Asset.technology: Natural Gas Fired Combined Cycle — extapps.dec.ny.gov · confidence: review_required
- Asset.fuel primary: natural gas — extapps.dec.ny.gov · confidence: review_required
- Asset.cogeneration: Yes - produces both electricity and steam — extapps.dec.ny.gov · confidence: review_required
- Asset.qualifying facility: Yes - QF under PURPA — documents.dps.ny.gov · confidence: review_required
- Asset.exempt wholesale generator: Yes - EWG with market-based rate authority — documents.dps.ny.gov · confidence: review_required
- Asset.location.county: Albany — extapps.dec.ny.gov · confidence: review_required
- Asset.location.town: Bethlehem — extapps.dec.ny.gov · confidence: review_required
- Asset.location.state: New York — extapps.dec.ny.gov · confidence: review_required
- Asset.location.address: 24 Power Park Drive, Selkirk, NY 12158-2299 — extapps.dec.ny.gov · confidence: review_required
- Asset.location.site context: Located on the General Electric plastics manufacturing complex — sec.gov · confidence: review_required
- Asset.nameplate capacity mw: 446 MW — documents.dps.ny.gov · confidence: review_required
- Asset.phase i capacity mw: 79.9 MW — sec.gov · confidence: review_required
- Asset.phase ii capacity mw: 265 MW — sec.gov · confidence: review_required
- Asset.site acres: 15.7 acres — sec.gov · confidence: review_required
- Asset.combustion turbines: 3 — extapps.dec.ny.gov · confidence: review_required
- Asset.steam turbines: 2 — extapps.dec.ny.gov · confidence: review_required
- Asset.hrsg count: 3 — extapps.dec.ny.gov · confidence: review_required
- Asset.nox controls phase i: Steam injection and Quiet Combustor technology — extapps.dec.ny.gov · confidence: review_required
- Asset.nox controls phase ii: Selective Catalytic Reduction (SCR) — extapps.dec.ny.gov · confidence: review_required
- Asset.heat input phase i: 1161.9 MMBtu/hr — extapps.dec.ny.gov · confidence: review_required
- Asset.heat input phase ii per unit: 1192.3 MMBtu/hr per turbine — extapps.dec.ny.gov · confidence: review_required
- Asset.operating status: operating — mis.nyiso.com · confidence: review_required
- Asset.proposed ownership change: Proposed upstream transfer in 2026: Power Aggregator (controlled by Ara Energy Fund and related investors) would acquire 93.7% of GCPH from GCE SPV — documents.dps.ny.gov · confidence: review_required

## Timeline

- 2005-01-31 — Cogentrix Acquisition of NEGT Interests
  Cogentrix Energy, Inc., through subsidiaries Cogentrix Power Holdings I LLC and Cogentrix Power Holdings II LLC, acquired the equity interests in 11 power plants, a natural-gas pipeline, and related assets from National Energy & Gas Transmission, Inc. (NEGT) for approximately $550 million including third-party costs. The acquisition included NEGT's indirect ownership interests in JMC Selkirk, Inc. (the managing general partner of Selkirk Cogen Partners) and related project-management entities.
  Source: sec.gov (https://www.sec.gov/Archives/edgar/data/929518/000095013305000335/w05455e8vk.htm)
- 2016-03-30 — Alterna Capital and Metropolis Energy Acquisition of 41.3% Interest
  An affiliate of Alterna Capital Partners (a subsidiary of Alterna Core Capital Assets Fund II, L.P.) closed on the acquisition of a 41.3% interest in Selkirk Cogen Partners L.P. from an affiliate of Ares-EIF Management LLC. Metropolis Energy led origination, diligence, and closing activities but did not hold a traditional equity ownership position; it retained an economic interest and operational-optimization responsibilities.
  Source: metropolis-energy.com (http://metropolis-energy.com/wp-content/uploads/2017/01/Selkirk-Cogen-Acquisition-Announcement-033016.pdf)
- 2018-02-15 — NYISO Generator Deactivation Notice Submitted
  Selkirk Cogen Partners, LP submitted a complete Generator Deactivation Notice to the New York Independent System Operator requesting retirement of Selkirk Units 1 & 2 on or about May 17, 2018.
  Source: nyiso.com (https://www.nyiso.com/documents/20142/1396324/Selkirk-I-II-Generation-Deactivation-Assessment-4-27-18.pdf/6b494b2b-73bb-6e40-787c-ec6c82300b59)
- 2026-06-12 — New York PSC Confirms Current Ownership Structure
  The New York Public Service Commission confirmed that GCE NE-Gen owns Selkirk Cogen Partners LLC, which owns the approximately 446-MW natural-gas-fired combined-cycle qualifying facility in Selkirk, New York within the NYISO balancing area.
  Source: documents.dps.ny.gov (https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B30A9BC9E-0000-CC16-BB77-8FA1D20967F3%7D&DocTitle=Declaratory%20Ruling%20on%20Transfer%20Transaction)

## Sources

- [metropolis-energy.com](http://metropolis-energy.com/wp-content/uploads/2017/01/Selkirk-Cogen-Acquisition-Announcement-033016.pdf) — metropolis-energy.com · tier public_source
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B30A9BC9E-0000-CC16-BB77-8FA1D20967F3%7D&DocTitle=Declaratory%20Ruling%20on%20Transfer%20Transaction) — documents.dps.ny.gov · tier authoritative
- [extapps.dec.ny.gov](https://extapps.dec.ny.gov/data/dar/afs/permits/prr_401220007800013_r1_3.pdf) — extapps.dec.ny.gov · tier authoritative
- [mis.nyiso.com](https://mis.nyiso.com/public/htm/generator/generator.htm) — mis.nyiso.com · tier authoritative
- [nyisoviewer.etariff.biz](https://nyisoviewer.etariff.biz/viewerdoclibrary/MasterTariffs/58TariffSections/2951.pdf) — nyisoviewer.etariff.biz · tier public_source
- [gevernova.com](https://www.gevernova.com/gas-power/products/gas-turbines/7e) — gevernova.com · tier public_source
- [nyiso.com](https://www.nyiso.com/documents/20142/1396324/Selkirk-I-II-Generation-Deactivation-Assessment-4-27-18.pdf/6b494b2b-73bb-6e40-787c-ec6c82300b59) — nyiso.com · tier authoritative
- [sec.gov](https://www.sec.gov/Archives/edgar/data/929518/000095013304001223/w95647e10vkpdf.pdf) — sec.gov · tier authoritative
- [sec.gov](https://www.sec.gov/Archives/edgar/data/929518/000095013305000335/w05455e8vk.htm) — sec.gov · tier authoritative

## Data quality

- The plant is consistently identified by EIA plant ID 10725 and by the New York State DEC permit for the Selkirk Cogeneration Project. Reported capacity varies by source and rating basis: 345 MW (SEC 10-K), 344 MW (NYPA technical worksheet), 437–438 MW (acquisition announcements 2016), and 446 MW (2026 NYPSC ruling). These figures likely reflect different nameplate, net, or operating-rating conventions and reporting dates rather than indicating conflicting plant identities. The 2018 proposed retirement/deactivation process was completed procedurally through NYISO assessment, but the owner withdrew its notice in December 2018 and stated it no longer intends to deactivate. The available evidence supports continued operation rather than retirement or mothballing. No separate expansion, repowering, or fuel-conversion project was identified. The documented development history is the two-phase original build (Phase 1 April 1992, Phase 2 September 1994). The 2005 Cogentrix transaction valued the broader 11-plant portfolio and related assets at approximately $550 million. This was a portfolio acquisition including indirect Selkirk interests; no Selkirk-specific consideration was disclosed. The 2016 Alterna/Metropolis acquisition of a 41.3% interest did not disclose transaction consideration. The facility is both a natural-gas-fired combined-cycle plant and a cogeneration facility producing electrical output and steam. Its QF and EWG status are confirmed by regulatory filings. Historical ownership passes through JMC Selkirk, Inc. → Cogentrix (2005) → Ares-EIF (intermediate ownership until 2016) → Alterna/Metropolis (2016 41.3% stake) with GCE NE-Gen/GCPH structure confirmed as of 2026. The facility supplies electricity to the NYISO wholesale market and steam to an adjacent industrial customer (historically GE Plastics, currently SABIC Innovative Plastics).

---

Canonical page: https://askthegrid.com/nyiso/assets/plant/selkirk-cogen

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