Horse Hollow Wind Energy Center
NextEra Energy Resources · Taylor and Nolan counties · ERCOT
Horse Hollow Wind Energy Center is a 735.5 MW wind complex in Taylor and Nolan counties, Texas. NextEra Energy Resources' project fact sheet reports 421 turbines across three phases: 142 GE 1.5 MW turbines in Horse Hollow I, 130 Siemens 2.3 MW turbines in Horse Hollow II, and 149 GE 1.5 MW turbines in Horse Hollow III. The first phase entered service in 2005-2006 and phases II and III in 2006; EIA groups the three phases under Plant ID 56291.
Overview
Key fields
- Operating capacity
- 735.5 MW
EIA May 2026 · three phases
- Turbines
- 421
291 GE · 130 Siemens
- Horse Hollow I
- 213 MW
142 GE 1.5 MW turbines
- Horse Hollow II
- 299 MW
130 Siemens 2.3 MW turbines
- Horse Hollow III
- 223.5 MW
149 GE 1.5 MW turbines
- Registry anchor
- Plant 56291
FPL Energy Horse Hollow LLC
Resource stack
- 1 resource
H_HOLLOW_WND1
Profile
- Grid role
- Utility-scale wind generation in ERCOT.
- Operating configuration
- Three phases with 421 turbines: 291 GE 1.5 MW machines and 130 Siemens 2.3 MW machines.
- Geography
- The complex spans Taylor and Nolan counties; the EIA plant coordinate and registry county are in Taylor County.
- Historical context
- At its 2006 dedication, the completed 735.5 MW complex was described as the world's largest wind farm.
Equipment layout
Turbine-field layout for comparing wind assets. Not a site map.
Structured profile
- Registered operator
- FPL Energy Horse Hollow LLC
EIA May 2026
- Operating phases
- 3
2005-2006 vintages
- Current parent
- NextEra Energy Resources
Official project fact sheet
- Site area
- Approximately 47,000 acres
Project and transmission records
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 213 MW 213 MW summer | Onshore Wind Turbine Wind · WT | Dec 2005 | Operating |
| 2 | 223.5 MW 223.5 MW summer | Onshore Wind Turbine Wind · WT | Jun 2006 | Operating |
| 3 | 299 MW 299 MW summer | Onshore Wind Turbine Wind · WT | Jun 2006 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 735.5 MW
- National rank
- #3
- TX rank
- #2
Monthly generation
Download CSVMonthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
ERCOT public disclosuresOperating context
ERCOT market recordsInterconnection record
ERCOT GIS ReportMatched to the latest available ERCOT generation-interconnection queue record. Queue status and completion dates describe the queue record; operating status is verified separately against plant and market registrations.
Nearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Market resources | H_HOLLOW_WND1 | Linked ERCOT resources. |
| Grid selection | plant:plant-56291 | Canonical asset page /ercot/assets/plant/horse-hollow-wind-energy-center. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Horse Hollow I entered serviceEIA May 202...
EIA reports December 2005 for the 213 MW first phase; NextEra describes its operating start as 2005-2006.
- Horse Hollow II and III entered serviceEIA May 202...
EIA reports June 2006 for the 299 MW and 223.5 MW phases.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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