Mission Station Energy Storage II
375 MW hybrid in Bexar, TX · In queue since February 2026 · Proposed COD December 2028
375 MW
Capacity
0
Components
3 months
In Queue
—
IA Status
COD target: 2028
Total Duration
2y 10m
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: 2028-12-31
Mission Station Energy Storage II is a proposed 375 MW hybrid energy project located in Bexar County, Texas. The project, developed by Mission Station LLC, consists of battery energy storage and another unspecified technology. It is currently active in the ERCOT interconnection queue as entry ERCOT-28INR0475, with a queue entry date of February 10, 2026, and a proposed commercial operation date of December 31, 2028.
The point of interconnection (POI) for Mission Station Energy Storage II is Tap 345kV (Bus #5400) SPRUCE – (Bus #5475) VON_ROSE Ckt 1; Tap 345kV (Bus #5400) SPRUCE – (Bus #5231) HOWARD_5 Ckt 1.
Generated from interconnection queue and public data sources
State
TX
County
Bexar
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Mission Station LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345kV (Bus #5400) SPRUCE – (Bus #5475) VON_ROSE Ckt 1; Tap 345kV (Bus #5400) SPRUCE – (Bus #5231) HOWARD_5 Ckt 1
Data Source
Live · ERCOT
- ISO / RTO
- ERCOT
- Trading Hub
- HB_NORTH
- Hub Confidence
- LOW
This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.
