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609.5 MW Natural Gas operating in Middlesex, NJ
609.5 MW
Nameplate Capacity
2
Generators
units
Natural Gas Fired Combined Cycle
Technology
2018
Operating Since
Coordinates
40.5558, -74.2469
County
Middlesex, NJ
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Parkway Generation Sewaren Urban Renewal Entity LLC | — | — |
| Owner(s) | Sewaren Generating Station | — | — |
| Status | Operating | — | — |
PSEG Sewaren Generating Station is a 609.5 MW natural gas-fired combined cycle power plant located in Middlesex County, New Jersey. The plant began operating in 2018 and is owned and operated by Sewaren Generating Station. It consists of two generators utilizing combined cycle technology. The plant is located within the PJM Interconnection, LLC balancing authority and the RFC NERC region.
In its most recent year of operation, the PSEG Sewaren Generating Station produced 2,122,743 MWh of electricity, achieving a capacity factor of 39.7%. The plant is ranked as the 9th largest power plant in New Jersey out of 19, and nationally it is ranked 392 out of 945 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
PJM
Market
ISO/RTO Member
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC (PJM)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
299.3K MWh
Latest Month
2.1M MWh
Annual Generation
39.7%
Capacity Factor
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CO₂ Intensity
826 lb/MWh
NOx
0.043 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
60.0%
Annual Net Gen
3202 GWh
CO₂eq
827 lb/MWh
Subregion
RFC East
2018
$837/kW
Est. Construction Cost
Total estimated cost: $510.2M
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Point of Interconnection
Nearest Substation
Sewaren 7 · 230 kV
Substation Distance
< 10 km
Operator
Public Service Enterprise Group
Coord Source
OSM spatial
Market Position
ISO/RTO Market
PJM
LMP Node
1379266905
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
Last updated 2026-04-09
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