Middletown Energy Center
Natural gas power plant in Butler County, Ohio. 543.9 MW of nameplate capacity across 2 generators, operated by Ohio Power Partners, LLC.
Also known as EIA plant 59326
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 543.9 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- May 2018First generator online
- Operator
- Ohio Power Partners, LLCEIA operator ID 59124
- Grid
- PJMBalancing authority PJM
- Price nodes
- 1 PJM nodeResource nodes with prices
- Location
- Butler County, OH39.4650, −84.3478
- EIA plant ID
- 59326EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Middletown produces
Free · EIA-923Net generation, 2025
3.14 TWh
3,144,914 MWh, final
Capacity factor, 2025
66.0%
2024: 75.6%
January to July 2026
2.05 TWh
Provisional
Range, 2019 to 2025
3.1–3.6
TWh a year. Low 2025, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | 2,255,806 | Not reported | 11 of 12 |
| 2019 | 3,329,496 | 69.9% | 12 of 12 |
| 2020 | 3,386,139 | 70.9% | 12 of 12 |
| 2021 | 2,685,179 | 61.6% | 11 of 12 |
| 2022 | 3,556,461 | 74.6% | 12 of 12 |
| 2023 | 3,363,086 | 70.6% | 12 of 12 |
| 2024 | 3,612,505 | 75.6% | 12 of 12 |
| 2025 | 3,144,914 | 66.0% | 12 of 12 |
| 2026 (provisional, partial year) | 2,052,304 | 74.2% | 7 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · PJMEmissions
Free · EPA CAMPDCO₂, 2025
1.24M
US short tons. 2024: 1.44M
SO₂, 2025
6
US short tons
NOx, 2025
63
US short tons
CO₂ per MWh, calculated
0.39 t
About 789 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 59326 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
705
million gallons
Consumption, 2024
577
million gallons
Source
Municipality
Ground, Fresh. Induced-draft tower
Watershed stress
Very low/none · 0.195
USGS SUI, HUC12 Shaker Creek
12 of 12 cooling months report withdrawal. Groundwater user; SUI describes surface water and is context only. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| MEC1 | Natural Gas Fired Combined Cycle | 310.2 | May 2018 |
| MEC2 | Natural Gas Fired Combined Cycle | 233.7 | May 2018 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Ohio Power Partners, LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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.
300 analyst questions a month, plus MCP
Query Middletown Energy Center and 14,224 other projects from Claude or your own tools. Free accounts get 1 question a day.
Power plants near Middletown
Questions about Middletown
How much power does Middletown Energy Center produce?
Middletown Energy Center reported 3,144,914 MWh (3.14 TWh) of net generation in 2025, a 66.0% capacity factor on 543.9 MW of nameplate capacity. From January to July 2026 it reported 2.05 TWh, which is provisional.
Where is Middletown Energy Center?
Middletown Energy Center is in Butler County, Ohio, at 39.4650, −84.3478. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Middletown Energy Center?
EIA-860M for August 2026 lists Ohio Power Partners, LLC as the operator (EIA operator ID 59124). The operator is not always the owner.
When did Middletown Energy Center start operating?
Its first generator began operating in May 2018, according to EIA-860M.
Does InfraMap have power prices for Middletown Energy Center?
Yes. InfraMap has PJM day-ahead and real-time prices at 1 price node linked to Middletown Energy Center, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page