Sierra Diablo Energy Storage
BetaActiveBatteryERCOTLBNL + Live
203.81 MW storage in Van Zandt, TX · In queue since August 2022 · Proposed COD April 2026
203.81 MW
Capacity
1
Components
Battery
3y 7m
In Queue
Facility Study
IA Status
COD target: 2026
Interconnection Timeline
Total Duration
3y 8m
Facilities Study50%
Queue EntryAug 5, 2022
Interconnection request submitted to ISO/RTO
Interconnection StudyCurrent
ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.
Typical: 18–30 months (fastest major ISO)
Interconnection Agreement
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial Operation
Proposed COD: 2026-04-20
Project Details
State
TX
County
Van Zandt
Region
ERCOT
Developer
SIERRA DIABLO ENERGY STORAGE LLC
Utility
—
Entity
ERCOT
Point of Interconnection
Tap 138kv 1698 Sulphur Springs Switch _x0013_ 3174 Canton Switch
Data Source
LBNL + Live
No news available for this project.