SOHO II BESS
206.32 MW storage in Brazoria, TX · In queue since August 2022 · Proposed COD June 2026
206.32 MW
Capacity
1
Components
Battery
3y 9m
In Queue
IA Executed
IA Status
Signed Apr 2023
Queue → IA
8 months
IA → COD
3y 2m
Total Duration
8 months
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: 2026-06-01
The SOHO II BESS project is a proposed 206.32 MW battery storage project located in Brazoria County, Texas. Developed by Black Mountain Energy Storage II, the project is interconnected within the ERCOT region and entered the ERCOT interconnection queue as queue ID ERCOT-25INR0162 on August 16, 2022.
The project has an executed Interconnection Agreement (IA) as of April 15, 2023, and is currently listed as active. The proposed commercial operation date is June 1, 2026. The point of interconnection is the 43035 Oasis 345kV.
Generated from interconnection queue and public data sources
State
TX
County
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Black Mountain Energy Storage II
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
43035 Oasis 345kV
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Oasis 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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