How big is Middletown Energy Center?

Middletown Energy Center reports 543.9 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 Middletown Energy Center?

Middletown Energy Center is a Natural Gas Fired Combined Cycle facility in Butler County, OH, participating in the PJM market.

Where is Middletown Energy Center located?

Middletown Energy Center is in Butler County, OH, inside the PJM balancing area.

Who operates Middletown Energy Center?

Middletown Energy Center is operated by Ohio Power Partners, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Middletown Energy Center generate?

Middletown Energy Center reported 3,488.5 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.

How does Middletown Energy Center compare to other plants?

By capacity, Middletown Energy Center ranks #296 of 540 operating plants of the same technology nationally. It ranks #12 of 15 in OH.

Middletown Energy Center — 544 MW gas plant, OH

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Middletown Energy Center — 544 MW gas plant, OH · Ask the Grid

Generation and physical site

EIA plant 59326 · Inventory for Sep 2026.

Reported operating nameplate by technology

Natural gas: 543.9 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 (2)

EIA generator status and nameplate capacity for Middletown Energy Center
Generator	Technology	Status	Power (MW)	Energy (MWh)
MEC1	Natural Gas Fired Combined Cycle	Operating	310.2	Unknown
MEC2	Natural Gas Fired Combined Cycle	Operating	233.7	Unknown

Physical map location · OpenStreetMap: 39.46758, -84.35324
Filed location · EIA: 39.46500, -84.34778

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 29, 2026
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
MEC1	310.2 MW 253.3 MW summer	Natural Gas Fired Combined Cycle CT	May 2018	Operating
MEC2	233.7 MW 209.2 MW summer	Natural Gas Fired Combined Cycle CA	May 2018	Operating

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