Los Vientos Windpower IV
Starr County, Texas · EIA plant ID 59321 · Operator: Duke Energy Renewables Services
Nameplate200MWSummer 200 MW
Generators1in service
Net generation434GWh12 mo to Aug 2026
Capacity factor25%wind units, summer MW
Heat rate—thermal plants only
First online2016
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), wind units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2016 | 253.6 | 28.7% | — |
| 2017 | 737.5 | 42.1% | — |
| 2018 | 728.6 | 41.6% | — |
| 2019 | 655 | 37.4% | — |
| 2020 | 601 | 34.2% | — |
| 2021 | 628.7 | 35.9% | — |
| 2022 | 702.5 | 40.1% | — |
| 2023 | 575.5 | 32.9% | — |
| 2024 | 466.9 | 26.6% | — |
| 2025 | 422 | 24.1% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Onshore Wind Turbine | WT | 200 | 200 | Jul 2016 | Operating | — | vestas V110-2.0 |
Owner / operator
Operator: Duke Energy Renewables Services. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Los Vientos Windpower IV, LLC | 100.0% | 200 MW |
Nearby plants
Within 80 km.
| SMT Rio Grande II LLC | 10 MW | 1.2 km |
| Rio Grande City BESS 2 | 10 MW | 1.4 km |
| Los Vientos Windpower III | 200 MW | 1.5 km |
| SMT Rio Grande I LLC | 10 MW | 12.3 km |
| Diamondback Solar | — | 12.8 km |
| Mesteno | 202 MW | 17.5 km |