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1803.6 MW Residual Oil operating in Oswego, NY — New York Independent System Operator
1,803.6 MW
Nameplate Capacity
2
Generators
units
Petroleum Liquids
Technology
1975
Operating Since
Coordinates
43.4586, -76.5319
County
Oswego, NY
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Oswego Harbor Power | ArcLight Capital Partners | — |
| Owner(s) | ArcLight Capital Partners LLC | ArcLight Capital Holdings | — |
| Status | Operating | — | — |
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
ISO/RTO
NYISO
Market
ISO/RTO Member
NERC Region
NPCC — Northeast Power Coordinating Council
Balancing Authority
New York Independent System Operator (NYIS)
Grid Voltage
345.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
1.1K MWh
Latest Month
85.1K MWh
Annual Generation
0.5%
Capacity Factor
CO₂ Intensity
2421 lb/MWh
Low-utilization plant — per-MWh rate is dominated by startup/standby emissions; not directly comparable to baseload averages.
NOx
3 lb/MWh
SO₂
7 lb/MWh
CH₄
0.090 lb/MWh
N₂O
0.018 lb/MWh
Capacity Factor
0.3%
Annual Net Gen
47 GWh
CO₂eq
2429 lb/MWh
Subregion
NPCC Upstate NY
2013
$765/kW
Est. Construction Cost
Total estimated cost: $1.4B
Point 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.
Last updated 2026-03-26
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