Arnold Hills Storage
122.5 MW hybrid in Henderson, TX · In queue since March 2025 · Proposed COD February 2029
122.5 MW
Capacity
0
Components
1y 2m
In Queue
—
IA Status
COD target: 2029
Total Duration
3y 11m
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: 2029-02-09
The Arnold Hills Storage project is a proposed 122.5 MW hybrid energy project located in Henderson County, Texas. Developed by Arnold Hills Storage, LLC, the project consists of battery energy storage and another unspecified technology. It is currently active in the ERCOT interconnection queue as entry ERCOT-29INR0089, with a queue entry date of March 24, 2025.
The proposed commercial operation date for the Arnold Hills Storage project is February 9, 2029. The point of interconnection is #6926 Seven Points 138kV. The project has appeared in recent news coverage regarding energy storage development in Texas.
Generated from interconnection queue and public data sources
State
TX
County
Henderson
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Arnold Hills Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
#6926 Seven Points 138kV
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.
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