Freeport Energy
Olin Blue Cube Operations · Brazoria County · ERCOT
Freeport Energy is an industrial natural-gas combined-cycle plant at Olin's Freeport site in Brazoria County, Texas. EIA's May 2026 inventory lists six generators totaling 603.1 MW nameplate, but two are out of service; the four operating generators provide 327.4 MW net summer and 357.8 MW net winter capability. The full six-generator inventory is rated at 458 MW net summer and 499.3 MW net winter. This EIA Plant ID 52120 facility is not Fengate's separate nearby 260 MW Freeport Energy Center.
Overview
Key fields
- Operating net summer
- 327.4 MW
4 operating generators
- Operating net winter
- 357.8 MW
EIA May 2026
- Full inventory nameplate
- 603.1 MW
6 generator records
- Full inventory net summer
- 458 MW
Includes 2 out-of-service generators
- Out-of-service generators
- 2
G-64 · G-66
- Registry anchor
- Plant 52120
Olin Blue Cube Operations
Profile
- Grid role
- Industrial combined-cycle generation at Olin's Freeport chemical-manufacturing site.
- Operating configuration
- Four operating generators and two out-of-service generators in EIA's current inventory.
- Operating capability
- The operating records total 327.4 MW net summer and 357.8 MW net winter capability.
- Identity boundary
- Plant 52120 is distinct from Fengate's nearby 260 MW Freeport Energy Center.
Structured profile
- Operating net summer
- 327.4 MW
EIA May 2026
- Operating net winter
- 357.8 MW
EIA May 2026
- Full inventory nameplate
- 603.1 MW
EIA May 2026
- Registered plant entity
- Olin Blue Cube Operations
EIA May 2026
- Operating status
- 4 operating · 2 out of service
EIA May 2026
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| G-35 | 119 MW 95.6 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Feb 1983 Retirement: Dec 2012 | Operating |
| G-37 | 75 MW 59.2 MW summer | Natural Gas Fired Combustion Turbine Natural Gas · GT | Apr 1978 Retirement: Jun 2023 | Operating |
| G-61 | 94.5 MW 68.3 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Oct 1982 | Operating |
| G-62 | 94.5 MW 68.3 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Sep 1982 | Operating |
| G-63 | 94.5 MW 68.3 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Aug 1982 | Operating |
| G-64 | 64.8 MW 35 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Sep 1982 Retirement: Oct 2022 | Operating |
| G-65 | 111.3 MW 95.2 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Feb 1984 | Operating |
| G-66 | 119 MW 95.6 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Dec 1983 | Operating |
| G-67 | 119 MW 95.6 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Mar 1984 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 816.6 MW
- National rank
- #139
- TX rank
- #22
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
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Registered plant entity and operator | Olin Blue Cube Operations | EIA May 2026 generator inventory |
| Grid selection | plant:plant-52120 | Canonical asset page /ercot/assets/plant/freeport-energy. |
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
- Generator enters operationEIA-860
EIA-860 lists generator G-37 with this operating date.
- First listed combustion turbine entered serviceEIA May 202...
EIA reports August 1982 for G-63.
- Generators enter operationEIA-860
EIA-860 lists generator G-62, generator G-64 with this operating date.
- Generator enters operationEIA-860
EIA-860 lists generator G-61 with this operating date.
- Generator enters operationEIA-860
EIA-860 lists generator G-35 with this operating date.
- Generator enters operationEIA-860
EIA-860 lists generator G-66 with this operating date.
- Generator enters operationEIA-860
EIA-860 lists generator G-65 with this operating date.
- Newest listed operating generator entered serviceEIA May 202...
EIA reports March 1984 for G-67.
- Planned generator retirementEIA-860
EIA-860 lists a planned retirement for generator G-35.
- Planned generator retirementEIA-860
EIA-860 lists a planned retirement for generator G-64.
- Planned generator retirementEIA-860
EIA-860 lists a planned retirement for generator G-37.
- Two generators listed out of serviceEIA May 202...
EIA marks G-64 and G-66 out of service and not expected to return within the next calendar year.
Sources
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