Oyster Creek Unit VIII
Dow Chemical Company-Oyster Creek VIII · Brazoria County · ERCOT
Oyster Creek Unit VIII is a four-generator natural-gas combined-cycle cogeneration plant in Brazoria County, Texas. EIA's May 2026 inventory reports 497.9 MW nameplate, 379 MW net summer, and 430 MW net winter capability across three combustion turbines and one steam turbine, all dated October 1994. Dow Chemical Company-Oyster Creek VIII is the current registered operator. Historical public records show a long-term steam-and-power relationship with Dow and a 50% International Power interest, but the reviewed current registry evidence does not establish a complete current ownership split.
Overview
Key fields
- Net summer capacity
- 379 MW
EIA May 2026
- Nameplate capacity
- 497.9 MW
EIA May 2026
- Net winter capacity
- 430 MW
EIA May 2026
- Operating generators
- 4
3 combustion · 1 steam
- Registered operator
- Dow Chemical Company-Oyster Creek VIII
EIA May 2026
- Registry anchor
- Plant 54676
Oyster Creek Unit VIII
Profile
- Grid role
- Industrial cogeneration supplying steam and electricity at Dow's Oyster Creek operations while participating in ERCOT.
- Operating configuration
- Three 99 MW combustion turbines and one 200.9 MW steam turbine.
- Capacity scope
- EIA reports 497.9 MW nameplate, 379 MW net summer, and 430 MW net winter capability.
- Ownership evidence
- Dow is the current registered operator; historical records identify multiple owners and parents, so a complete current ownership split is not asserted.
Structured profile
- Net summer capacity
- 379 MW
EIA May 2026
- Nameplate capacity
- 497.9 MW
EIA May 2026
- Net winter capacity
- 430 MW
EIA May 2026
- Registered operator
- Dow Chemical Company-Oyster Creek VIII
EIA May 2026
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| G81 | 99 MW 73 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Oct 1994 | Operating |
| G82 | 99 MW 73 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Oct 1994 | Operating |
| G83 | 99 MW 73 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Oct 1994 | Operating |
| G84 | 200.9 MW 160 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Oct 1994 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 497.9 MW
- National rank
- #312
- TX rank
- #49
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.
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 |
|---|---|---|
| Registered operator | EIA May 2026 generator inventory | |
| Grid selection | plant:plant-54676 | Canonical asset page /ercot/assets/plant/oyster-creek-unit-viii. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.