Old Trail Wind Farm is a 213.8 MW operating onshore wind facility in McLean County, Illinois, near Ellsworth. EDP Renewables acquired the parent corporate platform (Horizon Wind Energy) in 2007 and provides operations and maintenance. Atlantica Sustainable Infrastructure acquired a 49% portfolio interest in June 2021 as part of the Vento II four-asset wind portfolio; EDP Renewables retained 51%.
Canonical EIA plant baseline.
plant-56614
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Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 2 | 213.8 MW 213.8 MW summer | Onshore Wind Turbine Wind · WT | Dec 2007 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
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Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
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Project milestones and public references behind the asset profile.
Old Trail Wind Farm LLC filed an application with FERC for determination of exempt-wholesale-generator status under Section 32(a)(1) of the Public Utility Holding Company Act of 1935, as amended. The applicant stated it was a Delaware limited liability company engaged in developing, owning, and operating a wind-powered electric generating facility in McLean County, Illinois.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Houston-based EDP started Old Trail Wind Farm near Ellsworth, Illinois, as one of two wind farms (the other being High Trail Wind Farm, also in McLean County).
EIA-860 lists generator 2 with this operating date.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Old Trail Wind Farm has a reported capacity of 213.8 MW. Source: EIA Form 860M.
Old Trail Wind Farm is a Onshore Wind Turbine facility in McLean County, IL, participating in the PJM market.
Old Trail Wind Farm is in McLean County, IL, inside the PJM balancing area.
Old Trail Wind Farm is operated by Old Trail Wind Farm LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Old Trail Wind Farm reported 569.1 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.
By capacity, Old Trail Wind Farm ranks #204 of 1,362 operating plants of the same technology nationally. It ranks #10 of 57 in IL.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
