Shamrock Wind
NextEra Energy Resources · Crockett County · ERCOT
Shamrock Wind is a co-located wind and battery facility in Crockett County, Texas. EIA's May 2026 inventory lists a 223.9 MW wind generator entering service in December 2023 and a 100 MW battery entering service in January 2025 under Plant ID 66540, both operated by Shamrock Wind LLC. NextEra identifies the wind project in its ERCOT portfolio. The 323.9 MW combined power rating is the sum of separate wind and storage records, not an energy-capacity figure for the battery.
Overview
Key fields
- Wind capacity
- 223.9 MW
EIA
- Battery power
- 100 MW
EIA
- Combined power ratings
- 323.9 MW
Wind + storage
- Wind turbines
- 81
GE 2.82 and 2.32 MW models
- Registry anchor
- Plant 66540
Shamrock Wind LLC
Resource stack
- 3 resources
SHAMROCK_ESR1 · SHAMROCK_UNIT1
Profile
- Grid role
- Co-located wind generation and battery storage in ERCOT West.
- Wind record
- 223.9 MW · December 2023 service · 81 GE turbines disclosed in the project application.
- Capacity scope
- 323.9 MW is the sum of power ratings for wind and storage and must not be treated as simultaneous net generation.
Structured profile
- Wind capacity
- 223.9 MW
EIA
- Battery power
- 100 MW
EIA
- Equipment
- 81 GE wind turbines
Texas Comptroller filing
- Registered operator
- Shamrock Wind LLC
EIA
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| SES | 100 MW 100 MW summer | Batteries Electricity used for energy storage · BA | Jan 2025 | Operating |
| WSHAM | 223.9 MW 223.9 MW summer | Onshore Wind Turbine Wind · WT | Dec 2023 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 223.9 MW
- National rank
- #190
- TX rank
- #66
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.
ERCOT disclosed dispatch
3 ERCOT market resources · Battery / storage, Wind
Output by hourlocal time · 90 days through May 22, 2026
Latest disclosed outputhourly · 2 weeks ending May 22, 2026
Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.
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
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Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Project company and EIA registered operator | Shamrock Wind LLC | EIA May 2026 generator inventory |
| Portfolio developer and portfolio owner | Financing covers a portfolio that includes Shamrock Wind. | |
| Market resources | SHAMROCK_ESR1, SHAMROCK_UNIT1, SHAMROCK_UNIT2 | Linked ERCOT resources. |
| Grid selection | plant:plant-66540 | Canonical asset page /ercot/assets/plant/shamrock-wind. |
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
- Wind generator entered serviceEIA May 202...
EIA reports December 2023 for WSHAM.
- Battery Entered ServiceEIA May 202...
EIA reports January 2025 for the 100 MW SES battery.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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