Alexandrite Storage
203 MW storage in Cameron, TX · In queue since June 2022 · Proposed COD December 2026
203 MW
Capacity
1
Components
Battery
4y 1m
In Queue
Facility Study
IA Phase
COD target: 2026
Total Duration
4y 6m
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: 2026-12-10
The Alexandrite Storage project is a proposed 203 MW battery energy storage system in Cameron County, Texas. Developed by Johnson Energy Storage, LLC, the project entered the ERCOT interconnection queue as entry ERCOT-24INR0381 on June 27, 2022. Its proposed commercial operation date is December 10, 2026.
The project's interconnection status is currently in the Facility Study phase. The point of interconnection is the 8359 Santa Rosa (S_SNROSA4A) 138kV substation. The Alexandrite Storage 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
Cameron
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Johnson Energy Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
8359 Santa Rosa (S_SNROSA4A) 138kV
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_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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Ask about Alexandrite StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
