Shepard Energy Storage
260.22 MW storage in Galveston, TX · In queue since December 2022 · Proposed COD July 2027
260.22 MW
Capacity
1
Components
Battery
3y 5m
In Queue
IA Executed
IA Status
Signed Jan 2024
Queue → IA
1y 1m
IA → COD
3y 6m
Total Duration
1y 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: 2027-07-01
Shepard Energy Storage is a proposed 260.22 MW battery storage project located in Galveston County, Texas. The project, developed by Shepard Energy Storage LLC, is interconnected within the ERCOT region under queue ID ERCOT-25INR0262. It entered the interconnection queue on December 15, 2022, with a proposed commercial operation date of July 1, 2027. The project's Interconnection Agreement (IA) was executed on January 17, 2024.
The proposed project consists entirely of battery storage with a total capacity of 260.22 MW. The point of interconnection is the Hidden Lakes 138kV substation (Bus# 38900). Shepard Energy Storage has been the subject of recent news coverage, with three articles categorized under the industry sector.
Generated from interconnection queue and public data sources
State
TX
County
Galveston
Grid Region
ERCOT (Texas)
Market
ISO/RTO Member
Developer
Shepard Energy Storage LLC
Utility
—
Entity
ERCOT
Service Type
—
Point of Interconnection
Hidden Lakes 138kV substation (Bus# 38900)
Data Source
LBNL + Live
- ISO / RTO
- ERCOT
- Trading Hub
- HB_WEST
- Hub Confidence
- MEDIUM
- POI Substation
- Substation 41
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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