Leon BESS
153.7 MW storage in Houston, TX · In queue since November 2024 · Proposed COD February 2028
153.7 MW
Capacity
1
Components
Battery
1y 4m
In Queue
Facility Study
IA Status
COD target: 2028
Total Duration
3y 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: 2028-02-16
State
TX
County
Houston
Region
ERCOT
Developer
Leon BESS
Utility
—
Entity
ERCOT
Point of Interconnection
Tab 138kv 3355 Grapeland_Magnolia - 3357 Pleasant_Springs.
Data Source
LBNL + Live
esVolta acquires 300MWh ERCOT BESS from Black Mountain Energy Storage
California-headquartered developer esVolta has acquired a 150MW/300MWh standalone BESS in Texas, US, from Black Mountain Energy Storage (BMES).
Utility Alliant Energy plans c.400MWh BESS at retiring coal plant in Wisconsin
Alliant Energy will deploy a 99MW/396MWh battery energy storage system (BESS) at a coal plant which it will retire in 2025.
Utility Alliant Energy plans c.400MWh BESS at retiring coal plant in Wisconsin
Alliant Energy will deploy a 99MW/396MWh battery energy storage system (BESS) at a coal plant which it will retire in 2025.
Utility Alliant Energy plans c.400MWh BESS at retiring coal plant in Wisconsin
Alliant Energy will deploy a 99MW/396MWh battery energy storage system (BESS) at a coal plant which it will retire in 2025.
Last updated 2026-03-26