Cottonwood Bayou Solar
351.4 MW generation in Brazoria, TX · In queue since September 2017 · Proposed COD May 2026
351.4 MW
Capacity
1
Components
Solar
8y 8m
In Queue
IA Executed
IA Status
Signed Nov 2019
Queue → IA
2y 2m
IA → COD
6y 6m
Total Duration
2y 2m
Interconnection request submitted to ISO/RTO
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 12–24 months
Proposed COD: 2026-05-29
Cottonwood Bayou Solar is a proposed solar generation project with a total capacity of 351.4 MW, located in Brazoria County, Texas. The developer is Cottonwood Bayou Solar, LLC. The project is in the ERCOT interconnection queue as entry ERCOT-19INR0134, with a queue entry date of September 22, 2017, and a proposed commercial operation date of May 29, 2026. The Interconnection Agreement (IA) was executed on November 13, 2019. The point of interconnection is tap 138kV 42870 Liverpool - 43070 Petson.
The proposed project is linked to the existing Cottonwood Bayou Solar operating plant (EIA plant ID 66915). The project has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Cottonwood Bayou Solar, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
tap 138kV 42870 Liverpool - 43070 Petson
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_HOUSTON
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- CTW_RN
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
