Buckthorn Westex
Clearway Energy Operating LLC · Pecos County · ERCOT
Buckthorn Westex is a solar power facility with 154 MW of EIA-reported operating capacity in Pecos County, Texas, registered as EIA Plant ID 60044. Buckthorn Westex, LLC is the registered plant entity or operator. Project filings list 1,696,500 solar panels and 58 inverters for the facility.
Overview
Key fields
- Reported capacity
- 154 MW
EIA-reported plant capacity; other capacity bases are withheld pending reconciliation.
- Technology
- Solar Photovoltaic
Primary generation technology.
- Registry anchor
- Plant 60044
Buckthorn Westex, LLC · Pecos County · ERCOT
- Operating status
- Operating
Buckthorn Westex is operating.
- Settlement point
- RIGGIN_UNIT1
ERCOT settlement point.
Equipment
- 1,696,500 panels / 58 inverters
Installed equipment documented in public project records.
- Resource stack
- 1 resource
RIGGINS_UNIT1
Profile
- Grid role
- Utility-scale solar generation in ERCOT's energy-only market.
- Market node
- PECOS SOLAR WEST · 138 kV.
- Physical build
- Utility-scale solar photovoltaic plant (Buckthorn Westex / RIGGINS) in Pecos County, TX — single generating unit ~150–154 MW AC; installed PV modules supplied by First Solar (reported 1,696,500 modules), 58 central inverters supplied by Power Electronics USA, and horizontal single-axis trackers supplied by NEXTracker. Plant came online in 2018 (single unit).
Structured profile
- Reported capacity
- 154 MW
Solar Photovoltaic
- Operating status
- operating
Buckthorn Westex is operating.
- Location
- Pecos County
ERCOT
- Operator
- Buckthorn Westex, LLC
- Asset role
- solar
ERCOT · Pecos County
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| BKTH1 | 154 MW 154 MW summer | Solar Photovoltaic Solar · PV | May 2018 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 154 MW
- National rank
- #255
- TX rank
- #93
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
1 ERCOT market resource · Solar
Generation
3 mo through May 22, 2026Capacity factor is average output vs. this plant's observed peak.
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 recordsNearby 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 |
|---|---|---|
| Operator | Buckthorn Westex, LLC | Operator associated with Buckthorn Westex. |
| Market resources | RIGGINS_UNIT1 | Linked ERCOT resources. |
| Grid selection | plant:plant-60044 | Canonical asset page /ercot/assets/plant/buckthorn-westex. |
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
- Power Purchase AgreementSource
Wholesale power purchase agreement executed February 24, 2015 between Buckthorn Westex, LLC and City of Georgetown; 25-year fixed-price term; terms largely confidential; commenced operations July 2018.
- Construction start (project filing)Source
Texas Chapter 313 application amendment lists a construction commencement date of January 1, 2017 (project timeline in official tax filing).
- Generator enters operationEIA-860
EIA-860 lists generator BKTH1 with this operating date.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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