Rio Grande City BESS 2
9.9 MW storage in Starr, TX · Proposed COD June 2025
9.9 MW
Capacity
1
Components
Battery
—
In Queue
IA Executed
IA Status
Signed Feb 2024
IA → COD
1y 4m
Schedule
11 months past proposed COD
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: 6–18 months
Proposed COD: 2025-06-17
The Rio Grande City BESS 2 project is a proposed 9.9 MW battery storage project located in Starr County, Texas. The developer is SBESS TX12 LLC. It is interconnected within the ERCOT region under queue ID ERCOT-24INR0592, with a proposed commercial operation date of June 17, 2025.
The project's Interconnection Agreement (IA) was executed on February 2, 2024. This project is linked to the existing Rio Grande City BESS 2 operating plant (EIA plant ID 68687).
Generated from interconnection queue and public data sources
State
TX
County
Starr
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
SBESS TX12 LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Station Code - RIO_GRAN Load Name - 69_12_2 PTI Bus Number - 8797 Transformer Voltage - 69
Data Source
LBNL
- ISO / RTO
- ERCOT
- Trading Hub
- HB_SOUTH
- Hub Confidence
- MEDIUM
- Nearest Node (Estimated)
- ERCOT
- POI Substation
- Rio Grande City Substation
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.
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