Margay Energy Storage
101.3 MW hybrid in Brazoria, TX · In queue since February 2025 · Proposed COD April 2029
101.3 MW
Capacity
0
Components
1y 3m
In Queue
—
IA Status
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
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
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
Live · ERCOT
- 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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