# Cedar Bayou

ERCOT asset profile · https://askthegrid.com/assets/facilities/cedar-bayou

NRG Texas Power LLC · Chambers County · ERCOT

Cedar Bayou is a two-unit natural-gas steam plant in Chambers County, Texas, registered as EIA Plant ID 3460. EIA reports 1,530 MW of nameplate capacity and 1,495 MW of net summer and net winter capability. ERCOT maps the two operating units to resources and settlement points CBY_CBY_G1 and CBY_CBY_G2, with resource in-service dates of December 11, 1970 and March 15, 1972. NRG Energy owns the plant through NRG Texas Power LLC. Cedar Bayou 4 and the under-construction Cedar Bayou 5 share the broader site but are separate plants or projects.

## Profile

- **ERCOT configuration:** Two operating steam resources, CBY_CBY_G1 and CBY_CBY_G2, in the Houston zone.
- **Current ownership:** NRG Energy reports 100% ownership; NRG Texas Power LLC is the EIA registered operator.
- **Site boundaries:** Cedar Bayou 4 and Cedar Bayou 5 occupy the broader generation site but are not part of EIA Plant 3460.

## Metrics

- **Net summer capability:** 1,495 MW — EIA operating capability.
- **Nameplate capacity:** 1,530 MW — Two EIA steam generators.
- **Technology:** Natural-gas steam — Two conventional steam units.
- **Registry anchor:** Plant 3460 — NRG Texas Power LLC · Chambers County · ERCOT
- **Resource in-service:** 1970 / 1972 — CBY_CBY_G1 / CBY_CBY_G2.
- **Resource stack:** 2 resources — CBY_CBY_G1 · CBY_CBY_G2

## Facts

- **Net summer / winter:** 1,495 / 1,495 MW — EIA Form 860 · confidence: high
- **Owner:** NRG Energy — 100% reported ownership · confidence: high
- **Registered operator:** NRG Texas Power LLC — EIA Plant 3460 · confidence: high
- **TCEQ regulated entity:** RN100825371 — Cedar Bayou site complex · confidence: high
- **Coordinate parcel:** 39423 — 167.699 acres · NRG Texas LP · confidence: high

## Related parties

- **Owner / operator:** NRG Energy — Owner / operator for Cedar Bayou ([source](https://nrg.com/))

## Sources

- [EIA operating record](https://www.eia.gov/electricity/data/eia860/) — U.S. Energy Information Administration · regulatory — Plant identity, two generators, operator, technology, and capacity by reporting basis.
- [NRG current portfolio](https://www.sec.gov/Archives/edgar/data/1013871/000101387126000004/nrg-20251231.htm) — NRG Energy · filing — 1,495 MW current capacity and 100% ownership.

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Canonical page: https://askthegrid.com/assets/facilities/cedar-bayou
Website: [NRG Energy](https://nrg.com/)
Profile published: 2026-07-17T03:34:07.628Z
Source: Ask the Grid — https://askthegrid.com/