Treehouse Storage
209.21 MW hybrid in Grimes, TX · In queue since July 2025 · Proposed COD November 2028
209.21 MW
Capacity
0
Components
10 months
In Queue
—
IA Status
COD target: 2028
Total Duration
3y 4m
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: 2028-11-13
The Treehouse Storage project is a proposed 209.21 MW hybrid battery energy storage project located in Grimes County, Texas. Developed by Treehouse Solar, LLC, the project consists of battery storage and other unspecified technologies. It is currently active in the ERCOT interconnection queue as entry ERCOT-28INR0395, with a queue entry date of July 29, 2025, and a proposed commercial operation date of November 13, 2028.
The point of interconnection (POI) for the project is the Tap the 345 kV Jewett (#3390) - Singleton (#44645) line, ONCOR.
Generated from interconnection queue and public data sources
State
TX
County
Grimes
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Treehouse Solar, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap the 345 kV Jewett (#3390) - Singleton (#44645) line, ONCOR
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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