Marshall (IL)
Oil power plant in Clark County, Illinois. 16.9 MW of nameplate capacity across 9 generators, operated by City of Marshall - (IL).
Also known as EIA plant 949
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 16.9 MWNameplate
- Generators
- 9 operatingEIA-860M, August 2026
- Operating since
- April 2002First generator online
- Operator
- City of Marshall - (IL)EIA operator ID 11736
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Clark County, IL39.3921, −87.6851
- EIA plant ID
- 949EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Marshall (IL) produces
Free · EIA-923Net generation, 2025
167 MWh
167 MWh, final
Capacity factor, 2025
0.1%
2024: 0.1%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
115.0–485.0
MWh a year. Low 2019, high 2021
| 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 | 229 | Not reported | 12 of 12 |
| 2003 | 452 | Not reported | 12 of 12 |
| 2004 | 377 | Not reported | 12 of 12 |
| 2005 | 2,110 | Not reported | 12 of 12 |
| 2006 | 720 | Not reported | 12 of 12 |
| 2007 | 291 | Not reported | 12 of 12 |
| 2008 | 271 | Not reported | 12 of 12 |
| 2009 | 218 | Not reported | 12 of 12 |
| 2010 | 240 | 0.2% | 12 of 12 |
| 2011 | 282 | 0.2% | 12 of 12 |
| 2012 | 264 | 0.2% | 12 of 12 |
| 2013 | 259 | 0.2% | 12 of 12 |
| 2014 | 237 | 0.2% | 12 of 12 |
| 2015 | 247 | 0.2% | 12 of 12 |
| 2016 | 176 | 0.1% | 12 of 12 |
| 2017 | 149 | 0.1% | 12 of 12 |
| 2018 | 145 | 0.1% | 12 of 12 |
| 2019 | 115 | 0.1% | 12 of 12 |
| 2020 | 158 | 0.1% | 12 of 12 |
| 2021 | 485 | 0.3% | 12 of 12 |
| 2022 | 128 | 0.1% | 12 of 12 |
| 2023 | 202 | 0.1% | 12 of 12 |
| 2024 | 116 | 0.1% | 12 of 12 |
| 2025 | 167 | 0.1% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 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 · MISOEmissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 5 | Petroleum Liquids | 2.5 | September 2002 |
| 6 | Petroleum Liquids | 1.8 | April 2002 |
| 7 | Petroleum Liquids | 1.8 | April 2002 |
| 8 | Petroleum Liquids | 1.8 | April 2002 |
| 9 | Petroleum Liquids | 1.8 | April 2002 |
| 10 | Petroleum Liquids | 1.8 | April 2002 |
| 11 | Petroleum Liquids | 1.8 | April 2002 |
| 12 | Petroleum Liquids | 1.8 | January 2007 |
| 13 | Petroleum Liquids | 1.8 | January 2007 |
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 City of Marshall - (IL) 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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Power plants near Marshall (IL)
Questions about Marshall (IL)
How much power does Marshall (IL) produce?
Marshall (IL) reported 167 MWh (167 MWh) of net generation in 2025, a 0.1% capacity factor on 16.9 MW of nameplate capacity.
Where is Marshall (IL)?
Marshall (IL) is in Clark County, Illinois, at 39.3921, −87.6851. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Marshall (IL)?
EIA-860M for August 2026 lists City of Marshall - (IL) as the operator (EIA operator ID 11736). The operator is not always the owner.
When did Marshall (IL) start operating?
Its first generator began operating in April 2002, according to EIA-860M.
Does InfraMap have power prices for Marshall (IL)?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Marshall (IL), 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)
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page