Southside Energy
101.2 MW storage in Brazoria, TX · In queue since February 2023 · Proposed COD December 2028
101.2 MW
Capacity
1
Components
Battery
3y 3m
In Queue
Facility Study
IA Status
COD target: 2028
Total Duration
5y 10m
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 not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2028-12-31
Southside Energy is a proposed 101.2 MW battery storage project located in Brazoria County, Texas. The project, developed by Southside Energy, LLC, is currently active in the ERCOT interconnection queue as entry ERCOT-24INR0530, with a queue entry date of February 27, 2023. The proposed commercial operation date is December 31, 2028, and the project's interconnection agreement status is currently in the Facility Study phase.
The proposed project consists of 101.2 MW of battery storage capacity. It is slated to connect to the grid at Tap 138kV 42960 Mustang Bayou - 42100 HUDSON ckt 4. The Southside Energy project has been the subject of recent news coverage, with 10 articles appearing in industry, grid, and regulatory publications.
Generated from interconnection queue and public data sources
State
TX
County
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Southside Energy, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 42960 Mustang Bayou - 42100 HUDSON ckt 4
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_HOUSTON
- Hub Confidence
- MEDIUM
- POI Substation
- Mustang Bayou 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.
No ask pi reports yet for this entity.
ask pi about Southside Energy
