PHOTON BESS2 SLF
BetaActiveBatteryERCOTLBNL
152.74 MW storage in Wharton, TX · In queue since June 2022 · Proposed COD November 2025
152.74 MW
Capacity
1
Components
Battery
3y 9m
In Queue
IA Executed
IA Status
Signed Mar 2023
Interconnection Timeline
Queue → IA
9 months
IA → COD
2y 8m
Total Duration
9 months
Schedule
4 months past proposed COD
Construction75%
Queue EntryJun 2, 2022
Interconnection request submitted to ISO/RTO
Interconnection Study
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection AgreementMar 23, 2023
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
ConstructionCurrent
Project under construction
Typical: 6–18 months
Commercial Operation
Proposed COD: 2025-11-28
Project Details
State
TX
County
Wharton
Region
ERCOT
Developer
GulfStar Power, LLC
Utility
—
Entity
ERCOT
Point of Interconnection
44880 Waterh_POI_5 345kV
Data Source
LBNL
No news available for this project.