Millennium Energy Storage
102.59 MW storage in Martin, TX · In queue since May 2023
102.59 MW
Capacity
1
Components
Battery
3y 2m
In Queue
—
IA Status
Total Duration
3y 2m
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)
Commercial operation date not yet determined
The Millennium Energy Storage project is a proposed 102.59 MW battery storage project in Martin County, Texas. Developed by Rocky Mountain Energy Development, LLC, the project entered the ERCOT interconnection queue as ERCOT-25INR0431 on May 3, 2023. Its proposed commercial operation date is April 30, 2027, and its interconnection status is currently in the Facility Study phase.
The development project consists of 102.59 MW of battery capacity. Recent news coverage indicates industry interest in the project.
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
Martin
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
—
Utility
—
Entity
ERCOT
Service Type
—
Data Source
LBNL
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_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Buffalo Gap 2 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 Millennium Energy StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
