Fort Mason BESS
9.8 MW storage in Mason, TX · In queue since August 2023 · Proposed COD March 2025
9.8 MW
Capacity
1
Components
Battery
2y 7m
In Queue
IA Executed
IA Status
Signed Jan 2023
IA → COD
2y 2m
Total Duration
2y 7m
Schedule
13 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: 2025-03-04
State
TX
County
Mason
Region
ERCOT
Developer
Regis Mason LLC
Utility
—
Entity
ERCOT
Point of Interconnection
Station Name (TDSP Station Code): FORTMA; Load/Load Transformer Name: T1-FM140; PTI BUS number: 76390; Voltage in kV (Transmission Level): 138kV Transformer: 3x 4000kVA 800VAC - 12.47kVA
Data Source
LBNL