Rock Rose 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 10m
In Queue
IA Executed
IA Phase
Signed Jun 2024
One connected view of the asset's ownership, operating or development evidence, grid context, commercial relationships, history, and forward outlook.
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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
- 2025-10·Advanced Power→Greenflash Infrastructuresource
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
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
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
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — first-year production estimate and 10-year P50 trajectory, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- 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.
Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
