# Mesteno

ERCOT asset profile · https://askthegrid.com/assets/facilities/mesteno

Starr County · ERCOT

Mesteno is a wind power facility with 200 MW of EIA-reported operating capacity in Starr County, Texas, registered as EIA Plant ID 62258. Brookfield acquired Duke Energy's utility-scale renewables platform in October 2023; the operating business is now Deriva Energy. Commercial operation began on December 31, 2019.

## Profile

- **Grid role:** Utility-scale wind generation in ERCOT's energy-only market.
- **Grid connection:** Charlie Egner Station · 345 kV.
- **Physical build:** 56 Vestas V136-series onshore wind turbines (V136 platform, power‑optimized to 3.6 MW each); tall‑tower installations (reported ≈590.5 ft).

## 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 62258 — Starr County · ERCOT
- **Operating status:** Operating — Mesteno is operating.
- **Grid connection:** Charlie Egner Station — 345 kV
- **Commercial operation:** December 31, 2019 — Best-supported operating milestone.
- **Resource stack:** 1 resource — MESTENO_UNIT_1

## Facts

- **Commercial operation:** December 31, 2019 · confidence: medium
- **Operating status:** operating — Mesteno is operating. · confidence: medium
- **Interconnection:** Charlie Egner Station — 345 kV · confidence: medium
- **Location:** Starr County — ERCOT · confidence: high
- **Asset role:** wind — ERCOT · Starr County
- **Owner:** Duke Energy Renewables Services — Duke Energy's official release announces the Mesteño/Mesteno project and plant listings identify the utility as 'Duke Energy Renewables Services'. Combining these sources supports 'Duke Energy Renewables Services' as the owner/operator name used in registry and industry references. · confidence: medium

## Related parties

- **EPC contractor:** Wanzek Construction — Named as the construction contractor in owner/industry coverage about the project build. ([source](https://www.wanzek.com/))

## Sources

- [Mesteno Windpower Final Package](https://assets.comptroller.texas.gov/ch313/1271/rio-1271-mesteno-findings.pdf) — assets.comptroller.texas.gov · regulatory — Dec 19, 2018 — Mesteno Windpower, LLC anticipates constructing a wind-powered electric generating facility with an operating capacity of approximately 201.6.
- [Forecasted Capacity](https://www.ercot.com/files/docs/2023/03/08/SARA_Spring2023.xlsx) — ercot.com · regulatory — Mar 8, 2023 — MESTENO WIND 16INR0081 MESTENO_UNIT_1 STARR … it assumes average May peak weather occuring in April.
- [Wind Chart](https://www.ercot.com/files/docs/2022/11/08/Capacity%20Changes%20by%20Fuel%20Type%20Charts_October_2022.xlsx) — ercot.com · regulatory — Nov 8, 2022 — 16INR0081, Mesteno Wind, Starr, 44896, 43215, 43811, Wind, WT, 201.6, 2022, Yes.
- [Duke Energy Renewables' 200-MW Mesteño Windpower...](https://news.duke-energy.com/releases/duke-energy-renewables-200-mw-mesteno-windpower-project-in-texas-begins-producing-energy) — news.duke-energy.com · other — Jan 6, 2020 — Its 200-megawatt (MW) Mesteño Windpower project in Starr County, Texas began commercial operation on Dec. 31, 2019.
- [V136-3.45 MW®](https://www.vestas.ca/en-ca/onshore-wind-turbines/4-mw-platform/V136-3-45-MW) — vestas.ca · other — 5 days ago — V136-3.45 MW® combines advanced aerofoil design with the proven 4 MW nacelle and Large Diameter Steel Tower. Power Optimised Mode up to 3.6 MW
- [Duke turns sod on 200MW Mesteno | reNEWS](https://www.renews.biz/onshore-wind/duke-turns-sod-on-200mw-mesteno/) — renews.biz · other — Wanzek Construction is the contractor. The build phase is expected to be completed by the year-end.

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Canonical page: https://askthegrid.com/assets/facilities/mesteno

Profile published: 2026-07-17T03:34:33.665Z
Source: Ask the Grid — https://askthegrid.com/