Horse Hollow Wind Energy Center
Taylor County, Texas · EIA plant ID 56291 · Operator: FPL Energy Horse Hollow LLC
Nameplate736MWSummer 736 MW
Generators3in service
Net generation2,486GWh12 mo to Aug 2026
Capacity factor39%wind units, summer MW
Heat rate—thermal plants only
First online2005
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) |
|---|---|---|---|
| 2005 | 204.2 | 128.8% | — |
| 2006 | 1,323.2 | 29.1% | — |
| 2007 | 1,851 | 28.7% | — |
| 2008 | 2,027.2 | 31.4% | — |
| 2009 | 1,269.3 | 19.7% | — |
| 2010 | 1,845.1 | 28.6% | — |
| 2011 | 1,846 | 28.6% | — |
| 2012 | 1,879 | 29.1% | — |
| 2013 | 1,463.4 | 22.7% | — |
| 2014 | 2,309.1 | 35.8% | — |
| 2015 | 1,965.9 | 30.5% | — |
| 2016 | 2,159.6 | 33.4% | — |
| 2017 | 1,973 | 30.6% | — |
| 2018 | 2,440.2 | 37.9% | — |
| 2019 | 2,493.5 | 38.7% | — |
| 2020 | 2,513.5 | 38.9% | — |
| 2021 | 2,314 | 35.9% | — |
| 2022 | 2,336.2 | 36.3% | — |
| 2023 | 2,282.3 | 35.4% | — |
| 2024 | 2,458.1 | 38.0% | — |
| 2025 | 2,421.6 | 37.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | WT | 213 | 213 | Dec 2005 | Operating | — | ge 1.5 SLE |
| 2 | Onshore Wind Turbine | WT | 223.5 | 223.5 | Jun 2006 | Operating | — | siemens SWT-2.3-93 |
| 3 | Onshore Wind Turbine | WT | 299 | 299 | Jun 2006 | Operating | — | ge 1.5 SLE |
Owner / operator
Operator: FPL Energy Horse Hollow LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| FPL Energy Horse Hollow LLC | 100.0% | 736 MW |
Nearby plants
Within 80 km.
| Buffalo Gap 3 Wind Farm | 170 MW | 9.1 km |
| Callahan Divide Wind Energy Center | 114 MW | 10.5 km |
| Buffalo Gap Wind Farm | 121 MW | 10.9 km |
| Holstein 1 Solar Farm | 200 MW | 15.7 km |
| Buffalo Gap 2 Wind Farm | 233 MW | 16.2 km |
| Holstein 2 Battery Storage | — | 17.5 km |