Castle Gap Wind is a wind power facility with 196.8 MW of EIA-reported operating capacity in Mills County, Texas, registered as EIA Plant ID 65790. Swift Current Energy is the public owner or developer; Castle Gap Wind Power, LLC is the registered plant entity or operator. The facility uses N149/4. X (N149/4.0–4.5) turbines. Commercial operation began on October 1, 2023.
EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
Primary generation technology.
Castle Gap Wind Power, LLC · Mills County · ERCOT
Castle Gap Wind is operating.
Best-supported operating milestone.
AGUAYO_UNIT1
Onshore Wind Turbine
Castle Gap Wind is operating.
ERCOT
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Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CGWIN | 196.8 MW 196.8 MW summer | Onshore Wind Turbine Wind · WT | Oct 2023 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
Swift Current signed turbine-supply agreements with Nordex Group for the Castle Gap project (Nordex Delta4000 / N149-series machines).
ERCOT · Mills County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
1 ERCOT market resource · Wind
Capacity factor is average output vs. this plant's observed peak.
Observed ERCOT settlement prices at AGUAYO_UNIT1 over 363 days (2025-09-11 to 2026-09-10).
The TB2 figure is a price benchmark, not revenue: it values one perfect-foresight cycle per day between the 2 cheapest and 2 dearest hours of each day, gross of round-trip losses, and excludes ancillary services and any physical dispatch constraint. It describes what this node’s price shape was worth over the window — it is not this asset’s realized capture, and no dispatch is assumed or modelled.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
EIA records an October 2023 operating date; Swift Current announced the operating project on November 13, 2023.
Swift Current announced that Goldman Sachs provided tax-equity for the Castle Gap project concurrent with the commercial-operation announcement.
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Castle Gap Wind has a reported capacity of 196.8 MW. Source: EIA Form 860.
Castle Gap Wind is a Onshore Wind Turbine facility in Mills County, TX, participating in the ERCOT market.
Castle Gap Wind is in Mills County, TX, inside the ERCOT balancing area.
Castle Gap Wind is operated by Castle Gap Wind Power, LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Castle Gap Wind reported 614.8 GWh over the twelve months to 2026-06. Figures are net generation as filed to EIA-923.
Castle Gap Wind settles at AGUAYO_UNIT1.
By capacity, Castle Gap Wind ranks #346 of 1,362 operating plants of the same technology nationally. It ranks #108 of 228 in TX.
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.
