Avalon BESS
522.12 MW storage in Fort Bend, TX · In queue since December 2023 · Proposed COD December 2026
522.12 MW
Capacity
1
Components
Battery
2y 5m
In Queue
IA Executed
IA Status
Signed Dec 2024
Queue → IA
1 year
IA → COD
2 years
Total Duration
1 year
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: 2026-12-01
Avalon BESS is a proposed 522.12 MW battery storage project located in Fort Bend County, Texas. Developed by Avalon BESS, LLC, the project consists entirely of battery storage. It is interconnected within the ERCOT region and entered the interconnection queue as ERCOT-26INR0375 on December 20, 2023. The project's proposed commercial operation date is December 1, 2026, and its Interconnection Agreement (IA) was executed on December 17, 2024.
The point of interconnection (POI) for Avalon BESS is tapping the 345 kV line from Smithers (Bus# 44650) to Bellaire (Bus# 47000). Recent news coverage indicates industry interest in the development.
Generated from interconnection queue and public data sources
State
TX
County
Fort Bend
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Avalon BESS, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tapping the 345 kV Line from Smithers (Bus# 44650) to Bellaire (Bus# 47000).
Data Source
LBNL + Live
- 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.
Last updated 2026-03-26
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