How big is Ontelaunee Energy Center?

Ontelaunee Energy Center reports 728 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.

What kind of plant is Ontelaunee Energy Center?

Ontelaunee Energy Center is a Natural Gas Fired Combined Cycle facility in Berks County, PA, participating in the PJM market.

Where is Ontelaunee Energy Center located?

Ontelaunee Energy Center is in Berks County, PA, inside the PJM balancing area.

Who operates Ontelaunee Energy Center?

Ontelaunee Energy Center is operated by Ontelaunee Energy Center according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Ontelaunee Energy Center generate?

Ontelaunee Energy Center reported 3,639.6 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Ontelaunee Energy Center compare to other plants?

By capacity, Ontelaunee Energy Center ranks #167 of 540 operating plants of the same technology nationally. It ranks #15 of 26 in PA.

Ontelaunee Energy Center — 728 MW gas plant, PA

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Ontelaunee Energy Center — 728 MW gas plant, PA · Ask the Grid

Generation and physical site

EIA plant 55193 · Inventory for Sep 2026.

Reported operating nameplate by technology

Natural gas: 728 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 (3)

EIA generator status and nameplate capacity for Ontelaunee Energy Center
Generator	Technology	Status	Power (MW)	Energy (MWh)
CTG1	Natural Gas Fired Combined Cycle	Operating	250	Unknown
CTG2	Natural Gas Fired Combined Cycle	Operating	250	Unknown
STG	Natural Gas Fired Combined Cycle	Operating	228	Unknown

Physical map location · OpenStreetMap: 40.42117, -75.93636
Filed location · EIA: 40.42190, -75.93560

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Sep 2026
EIA retrieved: Oct 24, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Sep 11, 2025
Map prepared: Oct 24, 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

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

Generator	Capacity	Technology	Operation	Status
CTG1	250 MW 186.3 MW summer	Natural Gas Fired Combined Cycle CT	May 2002	Operating
CTG2	250 MW 184.8 MW summer	Natural Gas Fired Combined Cycle CT	May 2002	Operating
STG	228 MW 174.8 MW summer	Natural Gas Fired Combined Cycle CA	May 2002	Operating

Overview

Overview

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Generation and physical site

Reported operating nameplate by technology

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Units and generators

Performance

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Timeline and sources

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Common questions about Ontelaunee Energy Center