- Combustion
- Wind & solar
- Storage
- Loads
- In development
- Under construction
- Operating
- Stage not stated
- Size not stated
- 10 · 100 · 1,000 MW
Map
- Combustion
- Wind & solar
- Storage
- Loads
- In development
- Under construction
- Operating
- Stage not stated
- Size not stated
Cedar Bayou: location and 7 exact-grade projects within 15 mi. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
Cedar Bayou
Power plant · Gas, steam turbine
Key facts
Power plant · Gas, steam turbineran 12% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1970
- Net generation, 2025
- 1,642,498 MWh
- Grid
- 345 kV, 138 kV to CenterPoint Energy (ERCO)
- Location
- Chambers County, Texas
- Operated by
- NRG Texas Power LLC
Output
- Gas
- Oil
Details
Who’s behind it
- Owner
- NRG Energy, Inc
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- Technology
- Gas, steam turbine source: “Natural Gas Steam Turbine”
- Age
- 56 years since 1970
- Unused energy
- 11,761 GWh 2025Unused energyA lead, not a guarantee: MW × hours × (1 − capacity factor) for the latest year (EIA-923), gas, coal and oil plants only. Air-permit run-hour caps, heat rate (cost to run) and capacity-market or reliability obligations can rule it out.
- Heat rate
- 11,292 Btu/kWh 2025
All 6 attributes from EIA-860M Preliminary Monthly Electric Generator Inventory
| Attribute | Value |
|---|---|
| EPA greenhouse gas reporting (GHGRP) |
|
| Fuel burned (MMBtu), 2025 | 18,547,573 |
| Capacity factor, 2025 | 0.122 |
| Heat rate (Btu/kWh), 2025 | 11,292.3 |
| Net generation (MWh), 2025 | 1,642,498 |
| Balancing authority code | ERCO |
Retirement
EIA-860M September 2026StatusSome generators have retired; the rest of the plant is still in service. As of EIA-860M for September 2026.- Capacity retired
- 765 MW
- Generators retired
- 1
- Capacity still in service
- 1,530 MW
| Generator | Technology | Nameplate | State | Date |
|---|---|---|---|---|
| 3 | Natural Gas Steam Turbine | 765 MW | Retired | July 2007 |
Grid
EIA-860 2025Grid fieldsAs the plant reported them to EIA-860 for 2025 (Schedule 2).- Grid voltage at the plant
- 345 kV, 138 kV
- Transmission or distribution system owner
- CenterPoint Energy
- Balancing authority
- Electric Reliability Council of Texas, Inc.
- NERC region
- TRE
Transmission lines within 15 mi (10)
- CenterPoint Energy 138 kV line (OSM way 39980098)
- 138 kV line (OSM way 39980099)
- CenterPoint Energy 138 kV line (OSM way 338552642)
- CenterPoint Energy 138 kV line (OSM way 338552637)
- 138 kV line (OSM way 39962852)
- 138 kV line (OSM way 1529515106)
- 138 kV line (OSM way 1529515107)
- 138 kV line (OSM way 39962858)
- 345 kV line (OSM way 338552665)
- 138 kV line (OSM way 1527695234)
Connection points within 15 mi (3)
Can the connection be reused?
A plant that retires usually leaves its substation, transmission connection and interconnection agreement behind, and those may be reusable by a new project at the same site. FERC Order No. 845 lets an interconnection customer use surplus interconnection service at an existing site, and some transmission providers' tariffs let a replacement resource take over a retiring unit's interconnection service, usually within a set time after the retirement. Whether any such right still exists here, who holds it and on what terms depends on the owner, the transmission provider and timing; this page does not establish any of that.
Ownership
2 companies2| Company | Role | Share | As of | Source |
|---|---|---|---|---|
| NRG Texas Power LLC | Operator | EIA-860M | ||
| NRG Energy, Inc | Owner | 100.0% | Dec 31, 2023 | EPA GHGRP |
Timeline
- Stated Unit 3 scheduled to retire, 765 MW · EIA-860M
- In service · EIA-860M
Sources
6 sourcesSources EIA-860M · OpenStreetMap · ERCOT · EIA · EIA-860M Preliminary Monthly Electric Generator Inventory · EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
© OpenStreetMap contributors
Sources
- EIA-860M
- OpenStreetMap© OpenStreetMap contributors. Power lines, cables and substations filtered and reshaped by Inframation from the OpenStreetMap elements in Overture Maps' base/infrastructure theme; this derived database is available under the Open Database License 1.0 as GeoParquet files at https://tiles.inframation.io/grid/osm-power/ (latest.json names the current version's files; licence: https://www.openstreetmap.org/copyright)
- ERCOT
- EIASource: U.S. Energy Information Administration, Electricity bulk data (Form EIA-923 monthly plant series)
- EIA-860M Preliminary Monthly Electric Generator Inventory
- EPA Greenhouse Gas Reporting Program — facility register with parent-company shares (Envirofacts pub_dim_facility; FLIGHT)
Around this plant
Nearby
within 15 mi| Project | Kind | Away | MW |
|---|---|---|---|
| Cedar Bayou 5 Under construction | Gas, combustion turbine | 0.3 mi | 697 |
| GCCISD NEW TECHNOLOGY DATA CENTER Unknown | Large load | 3.6 mi | |
| Baytown Postponed | Biomass | 5.3 mi | 1.3 |
| Coneflower Storage Project LLC Contracted | Storage | 7.2 mi | 170.8 |
| TX LaPort 10060 Porter Road Solar Postponed | Solar | 9.7 mi | 1.6 |
| NET Power La Porte Station Studied | Gas, combustion turbine | 10.5 mi | 25.5 |
| Noor Solar Filed | Solar | 11.3 mi | 188.2 |
Sources ERCOT · EIA-860M · EPA ICIS-NPDES