Marcus Energy Storage
201.04 MW storage in Brazoria, TX · In queue since June 2023 · Proposed COD September 2027
201.04 MW
Capacity
1
Components
Battery
2y 9m
In Queue
Facility Study
IA Status
COD target: 2027
Total Duration
4y 3m
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: 2027-09-01
State
TX
County
Brazoria
Region
ERCOT
Developer
Marcus Energy Storage, LLC
Utility
—
Entity
ERCOT
Point of Interconnection
Tap 138kV 39500 West Columbia Main - 110505 Sweeny Co-Gen LP Ckt 1
Data Source
LBNL + Live
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Last updated 2026-03-26