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.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| GEN1 | 47.7 MW 38.8 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 1991 | Operating |
| GEN2 | 16.5 MW 16 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Jul 1991 | Operating |
| GEN3 | 1.1 MW 1.1 MW summer | Petroleum Liquids Disillate Fuel Oil · IC | Jun 1991 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 64.2 MW
- National rank
- #488
- NY rank
- #31
Monthly generation
Download CSVMonthly 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 inventoryCommercial, 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
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
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Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Former owner / operator | Owner/operator identified on Alliance facility page; historical operator until proposed 2026 transfer | |
| Equipment supplier | General Electric | Gas turbine and steam turbine manufacturer |
| EPC contractor | NEPCO | EPC contractor |
| Grid selection | plant:plant-50744 | Canonical asset page /nyiso/assets/plant/sterling-power-plant. |
Reporting portfolio
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
- Generators enter operationEIA-860
EIA-860 lists generator GEN1, generator GEN3 with this operating date.
- Generator enters operationEIA-860
EIA-860 lists generator GEN2 with this operating date.
- 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.
- Alliance Energy Acquisitionallianceene...
Alliance Energy New York, LLC acquired Sterling Power Plant. The predecessor owner was not identified in available materials.
- NYISO interconnection agreement effectivenyisoviewer...
SA-1144 large-generator interconnection agreement between Niagara Mohawk and Sterling Power Partners became effective.
- 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.
Sources
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.
Co-located assets
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
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