Maryneal Windpower
Nolan County, Texas · EIA plant ID 62836 · Operator: Duke Energy Renewables Services
Nameplate182MWSummer 182 MW
Generators1in service
Net generation505GWh12 mo to Aug 2026
Capacity factor32%wind units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2021 | 177.7 | 22.1% | — |
| 2022 | 535 | 33.5% | — |
| 2023 | 550.9 | 34.5% | — |
| 2024 | 570.1 | 35.6% | — |
| 2025 | 545 | 34.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MNW | Onshore Wind Turbine | WT | 182.4 | 182.4 | Jul 2021 | Operating | — | nordex N149/4.0-4.5 |
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).
| Maryneal Windpower, LLC | 100.0% | 182 MW |
Nearby plants
Within 80 km.
| Sweetwater Wind 5 | 81 MW | 4.3 km |
| Sweetwater Wind 3 LLC | 135 MW | 12.1 km |
| Sweetwater Wind 4 LLC | 241 MW | 13.1 km |
| Mesquite Star | 419 MW | 17.3 km |
| Sweetwater Wind 2 LLC | 99 MW | 20 km |
| Turkey Track Wind Energy LLC | 170 MW | 21 km |