How big is Philadelphia?

Philadelphia reports 82.8 MW petroleum of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Aug 2026.

What kind of plant is Philadelphia?

Philadelphia is a Petroleum Liquids facility in Baltimore City, MD, participating in the PJM market.

Where is Philadelphia located?

Philadelphia is in Baltimore City, MD, inside the PJM balancing area.

Who operates Philadelphia?

Philadelphia is operated by Constellation Power Source Generation, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Philadelphia generate?

Philadelphia reported 4.9 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Philadelphia compare to other plants?

By capacity, Philadelphia ranks #70 of 726 operating plants of the same technology nationally. It ranks #6 of 12 in MD.

Philadelphia — 83 MW oil plant, Baltimore City, MD

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Philadelphia — 83 MW oil plant, Baltimore City, MD · Ask the Grid

Generation and physical site

EIA plant 1557 · Inventory for Aug 2026.

Reported operating nameplate by technology

Petroleum: 82.8 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (4)

EIA generator status and nameplate capacity for Philadelphia
Generator	Technology	Status	Power (MW)	Energy (MWh)
GT1	Petroleum Liquids	Operating	20.7	Unknown
GT2	Petroleum Liquids	Operating	20.7	Unknown
GT3	Petroleum Liquids	Operating	20.7	Unknown
GT4	Petroleum Liquids	Operating	20.7	Unknown

Physical map location · OpenStreetMap: 39.29835, -76.56360
Filed location · EIA: 39.29860, -76.56360

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Aug 2026
EIA retrieved: Oct 10, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: May 18, 2023
Map prepared: Oct 10, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

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

Generator	Capacity	Technology	Operation	Status
GT1	20.7 MW 15.3 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Aug 1970	Operating
GT2	20.7 MW 14.8 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Aug 1970	Operating
GT3	20.7 MW 14.8 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Sep 1970	Operating
GT4	20.7 MW 14.8 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Sep 1970	Operating

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

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AssetOwner / operator

Parties and identifiers

OrganizationRoleBasis

ConstellationOwner / operatorowner

Reporting portfolio

EIA reporting entity

Constellation Power Source Generation, LLC

Entity 4161

Operating portfolio

2 plants

1 states

Reported capacity

575.1 MW

Natural Gas Fired Combustion Turbine · Petroleum Liquids

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Perryman	492.3 MW	MD
PhiladelphiaCurrent	82.8 MW	MD

Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.

View full reporting portfolio

Overview

Infrastructure record

Overview

Infrastructure record

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Structured profile

Generation and physical site

Reported operating nameplate by technology

Mapped facility footprint

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Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Market registration

Nearby substations

Related parties and identifiers

Relationship graph

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Philadelphia