Major Oak Power
Panamint Capital · Robertson County · ERCOT
Major Oak Power is the EIA-registered name for Twin Oaks Power Station, a two-unit lignite-fired plant in Robertson County, Texas. EIA's May 2026 inventory reports 349.2 MW nameplate, 305 MW net summer, and 307 MW net winter capability. Unit 1 entered service in September 1990 and Unit 2 in October 1991. Federal regulatory records describe two circulating fluidized-bed units and their current emissions-control systems.
Overview
Key fields
- Net summer capacity
- 305 MW
EIA May 2026
- Nameplate capacity
- 349.2 MW
EIA May 2026
- Net winter capacity
- 307 MW
EIA May 2026
- Current generators
- 2
Circulating fluidized bed
- Registry anchor
- Plant 7030
Major Oak Power, LLC
Resource stack
- 2 resources
TNP_ONE_TNP_O_1 · TNP_ONE_TNP_O_2
Profile
- Grid role
- Dispatchable lignite-fired steam generation in ERCOT.
- Current configuration
- Two circulating fluidized-bed steam units, each 174.6 MW nameplate.
- Capacity scope
- 349.2 MW EIA nameplate · 305 MW net summer · 307 MW net winter · approximately 310 MW Panamint company rating.
Structured profile
- Net summer capacity
- 305 MW
EIA May 2026
- Current configuration
- 2 × 174.6 MW steam units
EIA May 2026
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 174.6 MW 152 MW summer | Conventional Steam Coal Lignite · ST | Sep 1990 | Operating |
| 2 | 174.6 MW 153 MW summer | Conventional Steam Coal Lignite · ST | Oct 1991 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 349.2 MW
- National rank
- #141
- TX rank
- #11
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
2 ERCOT market resources · Coal / lignite
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 | Major Oak Power, LLC | Operator for Major Oak Power |
| Market resources | TNP_ONE_TNP_O_1, TNP_ONE_TNP_O_2 | Linked ERCOT resources. |
| Grid selection | plant:plant-7030 | Canonical asset page /ercot/assets/plant/major-oak-power. |
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
- Unit 1 entered serviceEIA May 202...
EIA reports September 1990 for Unit 1.
- Unit 2 entered serviceEIA May 202...
EIA reports October 1991 for Unit 2.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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