Rock Rose Energy BESS
211.5 MW storage in Fort Bend, TX · In queue since September 2023 · Proposed COD March 2027
211.5 MW
Capacity
1
Components
Battery
2y 8m
In Queue
IA Executed
IA Status
Signed Jun 2024
Queue → IA
9 months
IA → COD
2y 9m
Total Duration
9 months
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: 2027-03-19
The Rock Rose Energy BESS project is a proposed 211.5 MW battery storage project located in Fort Bend County, Texas. Developed by Rock Rose Energy Storage LLC, the project is interconnected within the ERCOT region under queue ID ERCOT-26INR0201. The project entered the interconnection queue on September 22, 2023, and has a proposed commercial operation date of March 19, 2027.
The interconnection agreement for the Rock Rose Energy BESS project was executed on June 15, 2024. The point of interconnection is the 44070 Whaley 345 kV substation. The project has been mentioned in recent news coverage related to deals.
Generated from interconnection queue and public data sources
State
TX
County
Fort Bend
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Rock Rose Energy Storage LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
44070 Whaley 345 kV
Data Source
LBNL + Live
- 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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