# Carthage Energy LLC

NYISO asset profile · https://askthegrid.com/assets/facilities/carthage-energy-llc

Carthage Energy LLC - Jefferson County - NYISO

Carthage Power Plant is a 62.9 MW natural-gas-fired combined-cycle cogeneration facility in Carthage, Jefferson County, New York. It uses a GE Frame 6 turbine with steam injection for NOx control, a Jeumont Schneider generator set, and a Shin-Nippon steam turbine. The facility began operating in 1991 and can use natural gas, kerosene, or fuel oil as fuel. It was originally developed as a qualifying cogeneration facility serving the James River paper mill with steam and selling electricity to Niagara Mohawk (now National Grid). The plant interconnects at 115 kV and has seasonal DMNC ratings of 55.1 MW in summer and 63.7 MW in winter.

## Metrics

- **Nameplate capacity:** 62.9 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 10620 — plant-10620

## Facts

- **Technology:** Natural Gas Fired Combined Cycle
- **Operator:** Alliance Energy Marketing LLC

## Related parties

- **Owner:** Carthage Energy LLC — Plant owner/operator ([source](http://www.allianceenergy.net/carthage-power-plant.html))
- **Owner / parent company:** Alliance Energy New York LLC — Parent company and owner after 2013 acquisition ([source](http://www.allianceenergy.net/))
- **Parent company:** Alliance Energy Group LLC — Ultimate parent company ([source](http://www.allianceenergy.net/))
- **Former owner:** Cayuga Energy — Predecessor owner
- **Operator / O&M provider:** Alliance Energy Marketing LLC — Operations and maintenance provider ([source](http://www.allianceenergy.net/))
- **Interconnection counterparty / transmission owner:** Niagara Mohawk Power Corporation d/b/a National Grid — Transmission owner and interconnection counterparty ([source](https://www.nationalgrid.com/))
- **Balancing authority / market operator / regulatory counterparty:** New York Independent System Operator Inc. — Balancing authority and market operator ([source](https://www.nyiso.com/))
- **Former owner / developer:** Kamine/Besicorp Carthage L.P. — Original developer
- **Offtaker / land lessor:** James River Corporation — Original site host and steam customer
- **Offtaker:** Niagara Mohawk Power Corporation — Original electricity purchaser
- **EPC contractor:** Ansaldo Industria of America — EPC contractor
- **Equipment supplier:** General Electric — Gas turbine and generator supplier ([source](https://www.gevernova.com/gas-power/products/gas-turbines/6b))
- **Equipment supplier:** Jeumont Schneider — Generator set manufacturer ([source](https://www.jeumontelectric.com/en/products/synchronous-machines-generators/generators/))
- **Equipment supplier:** Shin Nippon Machinery Co. Ltd. — Steam turbine manufacturer ([source](https://www.snm.co.jp/))

## Sources

- [allianceenergy.net](http://allianceenergy.net/carthage-power-plant.html) — allianceenergy.net · public_source — Source retained for exact-record publication review.
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B2E7F08B3-53D0-46A1-91EB-38CC25D4FE8E%7D&DocTitle=Withdrawal%20of%20Notice%20of%20Intent%20to%20Discontinue%20Operations%20and%20Retire%20Carthage%20Energy%20Generation%20Facility.) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B8D4D9769-4F71-4F9E-A91C-69984E3E6FA5%7D&DocTitle=Mod%20Fossil%20Divestiture%20Plan%202011_10_21.DOC) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7B90B9A09C-0000-C720-B30E-27AF683D69D1%7D&DocTitle=Verified%20Joint%20Petition%20for%20Approval%20of%20Transfer%20of%20Ownership%20Interests) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.
- [documents.dps.ny.gov](https://documents.dps.ny.gov/public/Common/ViewDoc.aspx?DocRefId=%7BD148BC34-73B6-4023-B71F-2CB9EF245DF8%7D&DocTitle=IUSA%20Fossil%20Auction%20Section%2070%20Petition) — documents.dps.ny.gov · authoritative — Source retained for exact-record publication review.
- [hgeo.energy.gov](https://hgeo.energy.gov/ng_regulation/sites/default/files/programs/gasregulation/authorizations/1990/orders/ord389.pdf) — hgeo.energy.gov · authoritative — Source retained for exact-record publication review.
- [gevernova.com](https://www.gevernova.com/gas-power/products/gas-turbines/6b) — gevernova.com · public_source — Source retained for exact-record publication review.

---

Canonical page: https://askthegrid.com/assets/facilities/carthage-energy-llc
Website: [Carthage Energy LLC](http://www.allianceenergy.net/carthage-power-plant.html)

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