How big is Sayreville Cogeneration Facility?

Sayreville Cogeneration Facility has a reported capacity of 430.2 MW. Source: EIA Form 860.

What kind of plant is Sayreville Cogeneration Facility?

Sayreville Cogeneration Facility is a Natural Gas Fired Combined Cycle facility in Middlesex County, NJ, participating in the PJM market.

Where is Sayreville Cogeneration Facility located?

Sayreville Cogeneration Facility is in Middlesex County, NJ, inside the PJM balancing area.

Who operates Sayreville Cogeneration Facility?

Sayreville Cogeneration Facility is operated by Sayreville Power Generation LP according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Sayreville Cogeneration Facility generate?

Sayreville Cogeneration Facility reported 534.8 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Sayreville Cogeneration Facility compare to other plants?

By capacity, Sayreville Cogeneration Facility ranks #321 of 538 operating plants of the same technology nationally. It ranks #9 of 14 in NJ.

Ask the Grid

⌘K

Grids

Library

Explore

Roadmap

Preferences

Free account

Open the analytical workspace

Detailed market and asset intelligence, plus the tools to keep and share the work.

Settlement-point price analytics
Plant & battery operating detail
Full Radar & Deep agent mode
Saved views, history & exports

Enterprise

Read your own grid

Your assets, topology, and trades — one decision surface with the agent.

Connect your own data
Private Grid
Probabilistic model forecasts
Data downloads & exports

Talk to us

About · Legal · Privacy · Changelog

Natural Gas Fired Combined CyclePJM · Middlesex County

Sayreville Cogeneration Facility

Vistra Corp · Middlesex County · PJM

Sayreville Cogeneration Facility is a natural gas-fired power facility with 430.2 MW of EIA-reported nameplate capacity in Middlesex County, New Jersey, registered as EIA Plant ID 10308. Dynegy Northeast Generation GP, Inc. and Dynegy Northeast Associates LP, Inc. is the current owner; Sayreville Power Generation LP is the registered plant entity or operator. Its grid role is base-load operation with flexibility for varying output based on ambient conditions.

Website Open in grid

Open in ATG map

Asset analyst

plant:plant-10308

Ask about Sayreville Cogeneration Facility

Investigate technology, capacity, output, price behavior, ownership, and related facilities using this profile plus current grid data.

Overview

Key fields

Reported capacity: 430.2 MW
EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
Technology: Natural Gas Fired Combined Cycle
Primary generation technology.
Registry anchor: Plant 10308
Sayreville Power Generation LP · Middlesex County · PJM
Operating status: Operating
Sayreville Cogeneration Facility is operating.

Profile

Grid role: Base-load operation with flexibility for varying output based on ambient conditions.
Physical build: The facility comprises two 143.4 MW natural-gas combined-cycle combustion turbines (CT1 and CT2), one 143.4 MW combined-cycle steam turbine (ST1), and three 3.25 MW black-start emergency generators (EG-1, EG-2, and EG-3). NJDEP identifies the two combustion turbines as Westinghouse W501D5 units; the emergency-generator sets are identified as Kohler 3250REOZD units with MTU Detroit Diesel engines. Siemens Energy is separately reported as the EPC contractor, turbine supplier, and electric-generator supplier.
Financing: No plant-specific project financing or construction financing was disclosed.

Structured profile

Reported capacity: 430.2 MW
Natural Gas Fired Combined Cycle
Operating status: operating
Sayreville Cogeneration Facility is operating.
Location: Middlesex County
PJM
Operator: Sayreville Power Generation LP
Asset role

Units and generators

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

Generator	Capacity	Technology	Operation	Status
CT1	143.4 MW 112 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Aug 1991	Operating
CT2	143.4 MW 112 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Aug 1991	Operating
ST1	143.4 MW 68 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CA	Aug 1991	Operating

Performance

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

Peer context

Technology capacity: 430.2 MW
National rank: #321
NJ rank: #9

Monthly generation

Download CSV

Latest 12 months

534.8 GWh

Reported net generation

Latest report

Dec 2024

EIA-923 monthly filing

2024 capacity factor

14.2%

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

UNKNOWN132956

IN SERVICE · 230 kV

0.1 km

TAP140898

Commercial, land, and environmental record

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

Land and environmental record

Air Permit Identifier

Mar 19, 2025

NJDEP Air Pollution Control Operating Permit: PI 18072; Permit Activity BOP190002

Title V operating-permit renewal documents identify Program Interest Number 18072 and Permit Activity Number BOP190002 for Sayreville Power Generation LP at 601 Jernee Mill Road.

Source

Air Permit Milestone

May 22, 1989

PSD permit issued May 22, 1989

NJDEP Statement of Basis states facility holds Prevention of Significant Deterioration permit issued May 22, 1989.

Statement of Basis

Environmental Compliance

Nov 16, 2022

NJDEP compliance determination: responsible official certified compliance; no compliance schedule included in operating permit

NJDEP states responsible official certified compliance with applicable federal and New Jersey requirements and Department concluded operating permit should be approved. No compliance schedules included; application shield and permit shield in effect.

Statement of Basis

Permit Milestone

Feb 22, 2001

Initial NJDEP operating-permit approval: February 22, 2001

NJDEP proposed renewal document lists February 22, 2001 as initial operating permit approval date.

Source

Permit Renewal Status

Mar 19, 2025

Title V renewal proposed in March 19, 2025 permit document; Facility operating under application shield.

NJDEP document labeled Air Pollution Control Operating Permit Renewal lists operating-permit approval date as Proposed. Facility operating under application shield after prior permit expiration.

Source

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 / operator

Parties and identifiers

OrganizationRoleBasis

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

1991
1991
Construction And OpeningSayreville ...
The Westinghouse-built combined-cycle plant opened in 1991.
Aug 1991
Aug 1991
Generators enter operation

Sayreville Cogeneration Facility

Ask about Sayreville Cogeneration Facility

Sayreville Cogeneration Facility

Ask about Sayreville Cogeneration Facility

Overview

Key fields

Profile

Structured profile

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Timeline and sources

Project timeline

Reporting portfolio

Sources

Common questions about Sayreville Cogeneration Facility

How big is Sayreville Cogeneration Facility?

What kind of plant is Sayreville Cogeneration Facility?

Where is Sayreville Cogeneration Facility located?

Who operates Sayreville Cogeneration Facility?

How much electricity does Sayreville Cogeneration Facility generate?

How does Sayreville Cogeneration Facility compare to other plants?

Co-located assets

Related assets

Sewaren

NAEA Ocean Peaking Power LLC

Gilbert

Birdsboro Power

Woodbridge Energy Center

Red Oak Power LLC