MISO-J4103
150 MW storage in Trinity, TX · In queue since October 2025
150 MW
Capacity
0
Components
7 months
In Queue
—
IA Status
Total Duration
7 months
Study Phase
Phase 1
Interconnection request submitted to ISO/RTO
MISO uses the Definitive Planning Phase (DPP) process with 3 study phases.
Typical: 30–40 months (historical); 12 months target
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial operation date not yet determined
MISO-J4103 is a proposed 150 MW battery storage project located in Trinity County, Texas. The project is in the Midcontinent Independent System Operator (MISO) interconnection queue, with an entry date of October 6, 2025. The designated point of interconnection (POI) is ONALASKA, and the project is currently in Phase 1 of its system impact study. Sam Houston Electric Cooperative, Inc. is listed as the utility.
The project is seeking Non-Retail Service (NRIS) interconnection service. As of the latest data, the project remains active in the MISO queue.
Generated from interconnection queue and public data sources
State
TX
County
Trinity
Grid Region
MISO (Midcontinent)
Market
ISO/RTO Member
Developer
—
Utility
SAM HOUSTON ELECTRIC COOPERATIVE, INC.
Entity
MISO
Service Type
NRIS
Point of Interconnection
ONALASKA
Data Source
Live · MISO
- ISO / RTO
- MISO
- Trading Hub
- TEXAS.HUB
- Hub Confidence
- HIGH
- POI Substation
- Onalaska Substation
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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