Old Trail Wind Farm
Wind power plant · McLean County, Illinois
Nameplate capacity
214 MW
Rank in Illinois
#56
of 580 plants
In service since
2007
December 2007
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- Old Trail Wind Farm LLC
- County
- McLean County
- Generating units
- 1
- Share of state capacity
- 0.41%
- Rank among wind plants in Illinois
- #10 of 56
- EIA plant code
- 56614
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Onshore Wind Turbine | 214 MW | 214 MW | 2007 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Illinois
| Morris Cogeneration LLC | Natural gas | 219 MW |
| California Ridge Wind Energy LLC | Wind | 217 MW |
| Walnut Ridge Wind Farm | Wind | 212 MW |
| High Trail Wind Farm LLC | Wind | 211 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 214 MW solar plant and a 214 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Illinois power plants · What Illinois actually generates