Big Elm Storage
100.8 MW storage in Bell, TX · In queue since April 2022 · Proposed COD November 2027
100.8 MW
Capacity
1
Components
Battery
4y 1m
In Queue
IA Executed
IA Status
Signed May 2024
Queue → IA
2y 1m
IA → COD
3y 6m
Total Duration
2y 1m
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: 2027-11-10
Big Elm Storage is a proposed 100.8 MW battery storage project located in Bell County, Texas. The project, developed by Big Elm Storage, LLC, consists entirely of battery storage. It is listed in the ERCOT interconnection queue as entry ERCOT-23INR0469, with a queue entry date of April 18, 2022, and a proposed commercial operation date of November 10, 2027.
The project has an executed Interconnection Agreement (IA) as of May 10, 2024. Its point of interconnection (POI) is Tap 345 kV 3414 Temple Switch - 3409 Lake Creek. This proposed project is linked to the existing, operating Big Elm Storage facility (EIA plant ID 68181). The Big Elm Storage project has been mentioned in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Bell
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Big Elm Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 345 kV 3414 Temple Switch - 3409 Lake Creek
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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