Antoninus Energy Storage
101.2 MW storage in Wharton, TX · In queue since June 2023 · Proposed COD June 2026
101.2 MW
Capacity
1
Components
Battery
2y 11m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
3 years
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: 2026-06-15
The Antoninus Energy Storage project is a proposed 101.2 MW battery storage project located in Wharton County, Texas. The project is being developed by Antoninus Energy Storage, LLC. It is currently in the ERCOT interconnection queue as entry ERCOT-24INR0589, with a queue entry date of June 28, 2023.
The proposed commercial operation date for the Antoninus Energy Storage project is June 15, 2026. Its interconnection status is currently in the Facility Study phase. The point of interconnection is Tap 138kV #43190 S_LANE_B138 - #42985 DYANN_POI_8 Transmission Line.
Generated from interconnection queue and public data sources
State
TX
County
Wharton
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Antoninus Energy Storage, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV #43190 S_LANE_B138 - #42985 DYANN_POI_8 Transmission Line.
Data Source
LBNL
- 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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