Rex Storage
256.4 MW storage in Harris, TX · In queue since June 2024 · Proposed COD September 2027
256.4 MW
Capacity
1
Components
Battery
2y 1m
In Queue
Facility Study
IA Phase
COD target: 2027
Total Duration
3y 3m
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: 2027-09-15
Entered ERCOT queue and began Facility Study phase
The Rex Storage project is a proposed 256.4 MW battery energy storage system located in Harris County, Texas. Developed by Rex BESS, LLC, the project entered the ERCOT interconnection queue as entry ERCOT-26INR0503 on June 13, 2024. The proposed commercial operation date is September 15, 2027.
The project's interconnection status is currently in the Facility Study phase. The point of interconnection is the 48284 Pilgrim 138kV location. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
TX
County
Harris
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Rex BESS, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138 kV 48096 El Dorado - 43610 Scarsdale CKT 92
Data Source
LBNL + Live
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. 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 — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. 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. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- ERCOT
- Trading Hub
- HB_HOUSTON
- Hub Confidence
- MEDIUM
- POI Substation
- Pilgrim Substation
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.
No Ask reports yet for this entity.
Ask about Rex StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
