Margay Energy Storage
101.3 MW storage in Brazoria, TX · In queue since February 2025 · Proposed COD April 2029
101.3 MW
Capacity
1
Components
Battery
1y 5m
In Queue
Facility Study
IA Phase
Signed Dec 2025
Queue → IA
10 months
IA → COD
3y 4m
Total Duration
10 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: 2029-04-10
Interconnection Agreement execution targeted per LBNL queue data
Proposed commercial operation date per LBNL filing
The Margay Energy Storage project is a proposed 101.3 MW hybrid battery energy storage project located in Brazoria County, Texas. Developed by PowerPulse LLC, the project consists of battery energy storage and other unspecified technologies. It is currently active in the ERCOT interconnection queue as entry ERCOT-28INR0295, with a queue entry date of February 25, 2025.
The proposed commercial operation date for Margay Energy Storage is April 10, 2029. An Interconnection Agreement (IA) was executed on December 26, 2025. The point of interconnection (POI) is Tap 138kV 42750 Mykawa - 48353 Telephone Ckt 06. 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
Brazoria
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
PowerPulse LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 42750 Mykawa - 48353 Telephone Ckt 06
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 Margay Energy StorageForward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
