St Joseph Energy Center
Natural gas power plant in St Joseph County, Indiana. 780 MW of nameplate capacity across 3 generators, operated by St Joseph Energy Center LLC.
Also known as St. Joseph Energy Center · EIA plant 57794
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Key facts
- Capacity
- 780 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- April 2018First generator online
- Operator
- St Joseph Energy Center LLCEIA operator ID 57109
- Grid
- PJMBalancing authority PJM
- Price nodes
- 3 PJM nodesResource nodes with prices
- Location
- St Joseph County, IN41.6990, −86.4797
- EIA plant ID
- 57794EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power St Joseph produces
Free · EIA-923Net generation, 2025
5.34 TWh
5,335,234 MWh, final
Capacity factor, 2025
78.1%
2024: 82.1%
January to July 2026
3.26 TWh
Provisional
Range, 2018 to 2025
4.1–5.6
TWh a year. Low 2018, 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 | 2,354 | Not reported | 1 of 12 |
| 2018 | 4,084,428 | Not reported | 12 of 12 |
| 2019 | 5,617,872 | Not reported | 12 of 12 |
| 2020 | 4,737,196 | Not reported | 12 of 12 |
| 2021 | 4,449,837 | 65.1% | 12 of 12 |
| 2022 | 4,984,533 | 73.0% | 12 of 12 |
| 2023 | 4,996,115 | Not reported | 12 of 12 |
| 2024 | 5,626,874 | 82.1% | 12 of 12 |
| 2025 | 5,335,234 | 78.1% | 12 of 12 |
| 2026 (provisional, partial year) | 3,255,629 | 82.0% | 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
2.11M
US short tons. 2024: 2.22M
SO₂, 2025
11
US short tons
NOx, 2025
107
US short tons
CO₂ per MWh, calculated
0.40 t
About 791 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (CTG01A, CTG01B), matched to EIA plant 57794 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
1,178
million gallons
Consumption, 2024
1,018
million gallons
Source
Municipal wells
Ground, Fresh. Induced-draft tower
Watershed stress
Low · 0.359
USGS SUI, HUC12 Laskowski Ditch-Kankakee River
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 |
|---|---|---|---|
| CT1 | Natural Gas Fired Combined Cycle | 260.0 | April 2018 |
| CT2 | Natural Gas Fired Combined Cycle | 260.0 | April 2018 |
| ST1 | Natural Gas Fired Combined Cycle | 260.0 | April 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 St Joseph Energy Center 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.
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Questions about St Joseph
How much power does St Joseph Energy Center produce?
St Joseph Energy Center reported 5,335,234 MWh (5.34 TWh) of net generation in 2025, a 78.1% capacity factor on 780 MW of nameplate capacity. From January to July 2026 it reported 3.26 TWh, which is provisional.
Where is St Joseph Energy Center?
St Joseph Energy Center is in St Joseph County, Indiana, at 41.6990, −86.4797. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates St Joseph Energy Center?
EIA-860M for August 2026 lists St Joseph Energy Center LLC as the operator (EIA operator ID 57109). The operator is not always the owner.
When did St Joseph Energy Center start operating?
Its first generator began operating in April 2018, according to EIA-860M.
Does InfraMap have power prices for St Joseph Energy Center?
Yes. InfraMap has PJM day-ahead and real-time prices at 3 price nodes linked to St Joseph 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
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page