Marcos BESS
115.88 MW generation in Victoria, TX · In queue since February 2024 · Proposed COD August 2027
115.88 MW
Capacity
1
Components
Battery
2y 5m
In Queue
Facility Study
IA Phase
COD target: 2027
Total Duration
3y 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: 2027-08-15
Entered ERCOT interconnection queue, Facility Study phase
The Marcos BESS project is a proposed 115.88 MW battery storage project located in Victoria County, Texas. Developed by GRS BESS Texas Eight LLC, the project entered the ERCOT interconnection queue as queue ID ERCOT-27INR0170 on February 7, 2024. The proposed commercial operation date is August 15, 2027, and the project's interconnection status is currently in the Facility Study phase.
The point of interconnection for the Marcos BESS project is to the 138 kV line from EDNA (#8118) to VICTORIA4A (#8172). The project has appeared in recent news coverage regarding energy storage developments in the ERCOT region.
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
Victoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
GRS BESS Texas Eight LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
To the 138 kV line from EDNA (#8118) to VICTORIA4A (#8172)
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.
No Ask reports yet for this entity.
Ask about Marcos BESSForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
