Natural Gas Fired Combined Cycle, Petroleum LiquidsNYISO · Oneida Countyplant:plant-50744

Sterling Power Plant

Sterling Power Partners LP - Oneida County - NYISO

Sterling Power Plant (EIA 50744) is a 65.3 MW independent power producer located at 110 East Seneca Street in Sherrill, Oneida County, New York. The facility comprises a natural-gas-fired combined-cycle cogeneration block with a 47.7 MW GE Frame 6 combustion turbine, a 16.5 MW steam turbine, and a 1.1 MW distillate-fuel auxiliary generator. The combustion-turbine and petroleum-liquid units began operating in June 1991, with the steam unit following in July 1991. The plant was historically described by its operator as originally built in 1992 and acquired by Alliance Energy in 2005. All three generating units were listed as operating in the latest EIA-derived record. The facility operates as a cogeneration facility providing electricity to the grid and potentially steam to a host facility, though it is classified as an independent power producer without combined heat and power. Sterling interconnects to Niagara Mohawk Power Corp.'s 115 kV transmission system at the Oneida Substation through a dedicated 2.5-mile radial tie line. In October 2021, Sterling announced an intention to retire its 65 MW unit effective on or before May 2, 2022, citing sustained uneconomic conditions and regulatory uncertainty, subject to NYISO reliability review. In January 2026, PowerTransitions LegacyOps II entered into an agreement to acquire Sterling Power Partners LP and four other Alliance-affiliated generation entities representing 323 MW of combined capacity.

Overview

Key fields

Nameplate capacity
65.3 MW

Canonical EIA plant baseline.

Registry anchor
Plant 50744

plant-50744

Structured profile

Technology
Natural Gas Fired Combined Cycle, Petroleum Liquids
Operator
Alliance Energy New York, LLC

Units and generators

Operating generator records and technology attributes reported through EIA-860.

GeneratorCapacityTechnologyOperationStatus
GEN147.7 MW
38.8 MW summer
Natural Gas Fired Combined Cycle
Natural Gas · CT
Jun 1991Operating
GEN216.5 MW
16 MW summer
Natural Gas Fired Combined Cycle
Natural Gas · CA
Jul 1991Operating
GEN31.1 MW
1.1 MW summer
Petroleum Liquids
Disillate Fuel Oil · IC
Jun 1991Operating

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity
64.2 MW
Natural Gas Fired Combined Cycle
National rank
#488
of 538 operating peers
NY rank
#31
of 39 operating peers

Monthly generation

Download CSV
Latest 12 months
3.7 GWh
Reported net generation
Latest report
Dec 2024
EIA-923 monthly filing
2024 capacity factor
0.6%
Using current reported nameplate capacity
Jan 2022: 1.2 GWh2022-01Feb 2022: 1 MWhMar 2022: 0 MWhApr 2022: 0 MWhMay 2022: 0 MWhJun 2022: 0 MWhJul 2022: 954 MWh2022-07Aug 2022: 947 MWhSep 2022: 237 MWhOct 2022: 0 MWhNov 2022: 0 MWhDec 2022: 424 MWhJan 2023: 0 MWh2023-01Feb 2023: 6 MWhMar 2023: 0 MWhApr 2023: 0 MWhMay 2023: 0 MWhJun 2023: 0 MWhJul 2023: 673 MWh2023-07Aug 2023: 0 MWhSep 2023: 1.2 GWhOct 2023: 228 MWhNov 2023: 0 MWhDec 2023: 0 MWhJan 2024: 4 MWh2024-01Feb 2024: 0 MWhMar 2024: 1 MWhApr 2024: 327 MWhMay 2024: 0 MWhJun 2024: 2.2 GWhJul 2024: 945 MWh2024-07Aug 2024: 0 MWhSep 2024: 0 MWhOct 2024: 242 MWhNov 2024: 0 MWhDec 2024: 3 MWh2024-12

Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Nearby substations

HIFLD infrastructure inventory
IN SERVICE · 115 kV
0.0 km
IN SERVICE · 115 kV
3.5 km
IN SERVICE · 115 kV
4.3 km
IN SERVICE · 115 kV
11.9 km
IN SERVICE · 115 kV
11.9 km

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Transactions and agreements

Construction
Jan 1, 1992
Alliance Energy facility page reports the plant was originally built in 1992. This is retained as a separate historical record; EIA-derived generator records show 1991 first operation.
Sterling Power Plant
allianceenergy.net
Ownership Transfer
Jan 1, 2005
Alliance Energy New York, LLC acquired Sterling Power Plant. The predecessor owner was not identified in available materials.
Sterling Power Plant · Alliance Energy New York, LLC
allianceenergy.net
Interconnection Agreement
Jun 8, 2012
SA-1144 large-generator interconnection agreement between Niagara Mohawk and Sterling Power Partners became effective.
Niagara Mohawk Power Corp. · Sterling Power Partners LP
nyisoviewer.etariff.biz
Regulatory Filing
Feb 27, 2026
Alliance Energy Group and affiliated sellers filed a joint petition with the New York PSC requesting approval to transfer all direct and indirect ownership interests in Sterling Power Partners LP and other NY-based generation entities to PowerTransitions LegacyOps II.
Alliance Energy Group, LLC · Sterling Power Partners LP · PowerTransitions LegacyOps II LLC · New York Public Service Commission
documents.dps.ny.gov

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetOwner / operatorEquipmentContractor

Parties and identifiers

RelationshipEntityBasis
Former owner / operatorAlliance Energy New York, LLCOwner/operator identified on Alliance facility page; historical operator until proposed 2026 transfer
Equipment supplierGeneral ElectricGas turbine and steam turbine manufacturer
EPC contractorNEPCOEPC contractor
Grid selectionplant:plant-50744Canonical asset page /nyiso/assets/plant/sterling-power-plant.

Reporting portfolio

EIA reporting entity
Sterling Power Partners LP
Entity 14182
Operating portfolio
1 plants
1 states
Reported capacity
65.3 MW
Natural Gas Fired Combined Cycle · Petroleum Liquids

Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

  1. Generators enter operationEIA-860

    EIA-860 lists generator GEN1, generator GEN3 with this operating date.

  2. Generator enters operationEIA-860

    EIA-860 lists generator GEN2 with this operating date.

  3. Construction / facility vintage reported by historical operatorallianceene...

    Alliance Energy facility page reports the plant was originally built in 1992. This is retained as a separate historical record; EIA-derived generator records show 1991 first operation.

  4. Alliance Energy Acquisitionallianceene...

    Alliance Energy New York, LLC acquired Sterling Power Plant. The predecessor owner was not identified in available materials.

  5. NYISO interconnection agreement effectivenyisoviewer...

    SA-1144 large-generator interconnection agreement between Niagara Mohawk and Sterling Power Partners became effective.

  6. NYPSC financing approval and ownership contextdocuments.d...

    New York PSC approved Alliance financing of up to $14.0 million in credit facilities supported by Sterling and related assets. The order identified Sterling Power Partners as owner of an approximately 64 MW Sherrill generation facility.

Common questions about Sterling Power Plant

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Sterling Power Plant?

Sterling Power Plant has a reported capacity of 65.3 MW. Source: EIA Form 860M.

What kind of plant is Sterling Power Plant?

Sterling Power Plant is a Natural Gas Fired Combined Cycle, Petroleum Liquids facility in Oneida County, NY, participating in the NYISO market.

Where is Sterling Power Plant located?

Sterling Power Plant is in Oneida County, NY, inside the NYISO balancing area.

Who operates Sterling Power Plant?

Sterling Power Plant is operated by Sterling Power Partners LP according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Sterling Power Plant generate?

Sterling Power Plant reported 3.7 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Sterling Power Plant compare to other plants?

By capacity, Sterling Power Plant ranks #488 of 538 operating plants of the same technology nationally. It ranks #31 of 39 in NY.

Asset analyst
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