Hidden Valley BESS
9.9 MW storage in Harris, TX · Proposed COD April 2025
9.9 MW
Capacity
1
Components
Battery
—
In Queue
IA Executed
IA Status
Signed Sep 2023
IA → COD
1y 7m
Schedule
13 months past proposed COD
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 executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2025-04-15
The Hidden Valley BESS is a proposed 9.9 MW battery storage project located in Harris County, Texas. Developed by Regis Hidden Valley, LLC, the project is interconnected within the ERCOT region under queue ID ERCOT-24INR0594. The proposed commercial operation date is April 15, 2025.
The project's Interconnection Agreement (IA) has been executed as of September 20, 2023. The point of interconnection (POI) is at the Hidden Valley substation (TSP Station Code HV) at transformer TR4, bus number 45862, operating at 138 kV.
Generated from interconnection queue and public data sources
State
TX
County
Harris
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Regis Hidden Valley, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Station Name (TSP Station Code): Hidden Valley (HV) Load/Load Transformer Name: TR4 PTI Bus Number: 45862 Voltage in kV (Transmission Level): 138 kV
Data Source
LBNL
- 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.
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