Natural gasOperatingPJM

TJX Engine

Natural gas power plant in Philadelphia County, Pennsylvania. 3 MW of nameplate capacity across 1 generator, operated by Onsite Partners, LLC.

Also known as EIA plant 70215

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6 plants within 11 km, from EIA coordinates.

Key facts

Capacity: 3 MWNameplate
Generators: 1 operatingEIA-860M, August 2026
Operating since: June 2021First generator online
Operator: Onsite Partners, LLCEIA operator ID 60571
Grid: PJMBalancing authority PJM
Price nodes: None linkedNo verified ISO node
Location: Philadelphia County, PA40.0905, −75.0143
EIA plant ID: 70215EIA plant page

Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.

How much power TJX Engine produces

Free · EIA-923

EIA-923 has no net generation reported for this plant.

Power prices and basis

Free account

No verified ISO price node is linked to this plant, or its price history could not load.

Emissions

Free · EPA CAMPD

No EPA emissions units are linked to this plant.

Water use

Free · EIA-923 cooling, USGS

No EIA cooling-water record for this plant in 2024.

Generators

Free · EIA-860M

Generator	Technology	Nameplate MW	Online since
TJXEN	Natural Gas Internal Combustion Engine	3.0	June 2021

Ownership and offtake

Pro

Ownership and offtake are part of Pro

Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Onsite Partners, LLC as the operator, which is not always the owner.

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Modeled data

Pro

Pro adds modeled values for this plant. Everything above stays free.

Modeled

Generation potential vs reported

Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.

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Power plants near TJX Engine

AC PowerSolar · 1.3 MW · 8.1 km DelancoSolar · 2.4 MW · 8.1 km Cinnaminson Landfill SolarSolar · 10 MW · 8.7 km Newman (PA)Natural gas · 1.8 MW · 9.1 km Croydon CT Generating StationOil · 546.4 MW · 10.5 km Pennsauken SolarSolar · 3.9 MW · 11.4 km

More plants operated by Onsite Partners, LLC

Martinsville BESSBattery storage · 10.1 MW · Henry County, VA Shelby BESSBattery storage · 10.1 MW · Richland County, OH Clyde Peaking EngineNatural gas · 10 MW · Sandusky County, OH AEP Jacksonville Solar ProjectSolar · 7.1 MW · Duval County, FL Brainerd AirportSolar · 5.8 MW · Crow Wing County, MN Sherburne Community SolarSolar · 5 MW · Sherburne County, MN

All 268 plants in Pennsylvania More natural gas power plants in Pennsylvania 12 plants in Philadelphia County Largest power plants in Pennsylvania PJM on the mapOnsite Partners, LLC: 39 plants

Questions about TJX Engine

Where is TJX Engine?

TJX Engine is in Philadelphia County, Pennsylvania, at 40.0905, −75.0143. It is in the PJM Interconnection, LLC balancing area (PJM).

Who operates TJX Engine?

EIA-860M for August 2026 lists Onsite Partners, LLC as the operator (EIA operator ID 60571). The operator is not always the owner.

When did TJX Engine start operating?

Its first generator began operating in June 2021, according to EIA-860M.

Sources

EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location

Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page