Big Spring Wind Power Facility
Howard County, Texas · EIA plant ID 54979 · Operator: Terra-Gen Operating Co LLC
Nameplate34MWSummer 34 MW
Generators1in service
Net generation57GWh12 mo to Dec 2025
Capacity factor19%wind units, summer MW
Heat rate—thermal plants only
First online1998
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) |
|---|---|---|---|
| 2001 | 90 | 29.9% | — |
| 2002 | 95.4 | 31.8% | — |
| 2003 | 90.2 | 30.0% | — |
| 2004 | 83.7 | 27.8% | — |
| 2005 | 84 | 28.0% | — |
| 2006 | 89 | 29.6% | — |
| 2007 | 82.5 | 27.5% | — |
| 2008 | 96.2 | 31.9% | — |
| 2009 | 68 | 22.6% | — |
| 2010 | 74.2 | 24.7% | — |
| 2011 | 56.3 | 18.7% | — |
| 2012 | 67.4 | 22.4% | — |
| 2013 | 77.3 | 25.7% | — |
| 2014 | 86 | 28.6% | — |
| 2015 | 72.9 | 24.3% | — |
| 2016 | 69.8 | 23.2% | — |
| 2017 | 54.9 | 18.3% | — |
| 2018 | 36.7 | 12.2% | — |
| 2019 | 65.1 | 21.7% | — |
| 2020 | 73.4 | 24.4% | — |
| 2021 | 60.6 | 20.2% | — |
| 2022 | 65 | 21.6% | — |
| 2023 | 62.5 | 20.8% | — |
| 2024 | 56 | 18.6% | — |
| 2025 | 56.8 | 18.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WIND | Onshore Wind Turbine | WT | 34.3 | 34.3 | Dec 1998 | Operating | — | vestas V47-660 |
Owner / operator
Operator: Terra-Gen Operating Co LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Texas Big Spring, L.P. | 100.0% | 34 MW |
Nearby plants
Within 80 km.
| Elbow Creek Wind Project LLC | 122 MW | 7.5 km |
| C R Wing Cogen Plant | 170 MW | 8 km |
| Gunsight Mountain Wind Energy LLC | 120 MW | 8.8 km |
| Ocotillo Windpower | 59 MW | 9.5 km |
| NRG Elbow Creek Energy Storage Project | retired | 9.6 km |
| Bhalu | — | 12.6 km |