Mallard BESS
ERCOT-25INR0101BetaActiveBatteryERCOTLBNL + Live
257.3 MW storage in Collin, TX · In queue since June 2022 · Proposed COD July 2026
257.3 MW
Capacity
1
Components
Battery
3y 10m
In Queue
Facility Study
IA Status
COD target: 2026
Interconnection Timeline
Total Duration
4y 1m
Facilities Study50%
Queue EntryJun 2, 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: 2026-07-14
Project Details
State
TX
County
Collin
Region
ERCOT
Developer
Mallard Energy Storage LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
818 Olinger 138kV
Data Source
LBNL + Live
No news available for this project.