Parthenon Energy
101.2 MW storage in Hidalgo, TX · In queue since April 2023 · Proposed COD June 2026
101.2 MW
Capacity
1
Components
Battery
3y 1m
In Queue
Facility Study
IA Status
COD target: 2026
Total Duration
3y 2m
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
Parthenon Energy, LLC is proposing a 101.2 MW battery storage project named Parthenon Energy in Hidalgo County, Texas. The project is located within the ERCOT region and has been assigned queue ID ERCOT-24INR0558. The project entered the ERCOT interconnection queue on April 19, 2023, and is currently undergoing a Facility Study. The proposed commercial operation date is June 15, 2026.
The proposed project consists of 101.2 MW of battery storage capacity. The point of interconnection is Tap 138kV 88380 RGTAP4A - 8896 RACHAL4A. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
TX
County
Hidalgo
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Parthenon Energy, LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Tap 138kV 88380 RGTAP4A - 8896 RACHAL4A
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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