# Post Oak Wind LLC

ERCOT asset profile · https://askthegrid.com/assets/facilities/post-oak-wind-llc

Shackelford County · ERCOT

Post Oak Wind LLC is a wind power facility with 200 MW of EIA-reported operating capacity in Shackelford County, Texas, registered as EIA Plant ID 56483. Horizon Wind Energy LLC is the public owner or developer; Mesquite Wind LLC is the registered plant entity or operator. Commercial operation began in December 2007. The facility interconnects at Post Oak 2 substation (connects to ONCOR Long Creek Switching Station) at 138 kV.

## Profile

- **Grid role:** Utility-scale wind generation in ERCOT's energy-only market.
- **Grid connection:** Post Oak 2 substation (connects to ONCOR Long Creek Switching Station) · 138 kV · ONCOR.

## Metrics

- **Reported capacity:** 200 MW — EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
- **Technology:** Onshore Wind Turbine — Primary generation technology.
- **Registry anchor:** Plant 56483 — Mesquite Wind LLC · Shackelford County · ERCOT
- **Operating status:** Operating — Post Oak Wind LLC is operating.
- **Grid connection:** Post Oak 2 substation (connects to ONCOR Long Creek Switching Station) — 138 kV · ONCOR
- **Commercial operation:** December 2007 — Best-supported operating milestone.

## Facts

- **Reported capacity:** 200 MW — Onshore Wind Turbine · confidence: high
- **Interconnection:** Post Oak 2 substation (connects to ONCOR Long Creek Switching Station) — 138 kV · ONCOR · confidence: medium
- **Asset role:** wind — ERCOT · Shackelford County

## Related parties

- **Owner / developer:** Horizon Wind Energy LLC — PUCT registration states Horizon owns 100% of Post Oak Wind LLC.

## Sources

- [Onshore Direct Drive solutions](https://www.siemensgamesa.com/global/en/home/products-and-services/onshore/direct-drive-solutions.html) — siemensgamesa.com · other — The Siemens Gamesa onshore wind turbines SG 4.3-140, SG 4.3-130 and SG 4.3-120 with direct drive technology offer reduced complexity and a robust design.
- [Wind Turbine Operation and Maintenance Service I...](https://www.siemensgamesa.com/global/en/home/products-and-services.html) — siemensgamesa.com · other — Siemens Gamesa new generation turbine for medium winds. Rotor diameter: 170 m Nominal power: Up to 7.0 MW Technology: Geared + DFIG
- [Onshore Aftermarket product catalogue](https://assets.siemens-energy.com/dam/468e4bf3-2c20-435d-a838-b36f00aa86c0/siemens-gamesa-on-aftermarket-product-catalogue-pdf_Original%20file.pdf) — assets.siemens-energy.com · other — Siemens Gamesa's high-performance aftermarket solutions deliver enhanced energy production and operational efficiency. G87-2.0 MW, G87-2.0 MW CS,

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Canonical page: https://askthegrid.com/assets/facilities/post-oak-wind-llc

Profile published: 2026-07-17T03:34:41.429Z
Source: Ask the Grid — https://askthegrid.com/