Oswego Harbor Power — Plant Summary
- EIA Plant ID
- 2594
- Capacity
- 1803.6 MW
- Primary Fuel
- RFO
- Technology
- Petroleum Liquids
- Status
- Operating
- Location
- Oswego, NY
- Operating Since
- 1975
- Generators
- 2
- Operator
- Oswego Harbor Power
- Parent Company
- ArcLight Capital Holdings
- Annual Generation
- 85,119 MWh
- Capacity Factor
- 0.5%
- Balancing Authority
- New York Independent System Operator
- ISO/RTO
- NYISO
- NERC Region
- NPCC
Oswego Harbor Power
OperatingResidual Oil
Ranked #1 of 1 Residual Oil plants in NY#1 of 13 nationally
1803.6 MW Residual Oil operating in Oswego, NY — New York Independent System Operator
EIAWD
1,803.6 MW
Nameplate Capacity
2
Generators
units
Petroleum Liquids
Technology
1975
Operating Since
Location
Coordinates
43.4586, -76.5319
County
Oswego, NY
Nearby Plants
- VarickHydro8 MW · 2.4 km
- Onondaga County- ClearwaterSolar2 MW · 3.3 km
- High DamHydro11.9 MW · 3.3 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oswego Harbor Power | ArcLight Capital Partners | — |
| Owner(s) | ArcLight Capital Partners LLC | ArcLight Capital Holdings | — |
| Status | Operating | — | — |
Ownership Chain
About
Oswego Harbor Power is a 1803.6 MW petroleum-fueled power plant located in Oswego County, New York. The plant began operating in 1975 and is owned by ArcLight Capital Holdings, with Oswego Harbor Power serving as the operator. It consists of two generators utilizing petroleum liquids as their primary fuel source. The plant is the largest of its kind in New York State and ranks first out of six similar plants nationally.
The plant operates within the New York Independent System Operator (NYISO) balancing authority and the Northeast Power Coordinating Council (NPCC) NERC region. In the latest year for which data is available, Oswego Harbor Power generated 85,119 MWh of electricity, resulting in a capacity factor of 0.5%.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
NPCC
Balancing Authority
New York Independent System Operator
Grid Voltage
345 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
1.1K MWh
Latest Month
85.1K MWh
Annual Generation
0.5%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
MEDIUM confidencePoint of Interconnection
Nearest Substation
OSWEGO___5
Substation Distance
< 10 km
Coord Source
NYISO direct
Market Position
ISO/RTO Market
NYISO
LMP Node
—
Pricing Hub
NYISO Zone C
Node Source
Shared substation inference
Substation identified. Node ID not yet resolved against ISO roster.
23606Nearby ISO Node
23613Substation
23783Substation
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