SPP-GEN-2026-PR4
131.56 MW storage in Spearman, TX · In queue since December 2025
131.56 MW
Capacity
0
Components
5 months
In Queue
—
IA Status
Total Duration
5 months
Interconnection request submitted to ISO/RTO
SPP uses the Definitive Interconnection System Impact Study (DISIS) cluster process.
Typical: 36–48 months (improving)
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Commercial operation date not yet determined
SPP-GEN-2026-PR4 is a proposed battery storage project located in Spearman County, Texas, within the Southwest Power Pool (SPP) region. The project, with a total capacity of 131.56 MW, is listed in the SPP interconnection queue as of December 19, 2025. The interconnecting utility is Southwestern Public Service (SPS).
The project's point of interconnection (POI) is the Hitchland 345kV substation. The designated service type for the project is Energy Resource (ER). As of the latest data, the project is listed as "active" in the SPP queue.
Generated from interconnection queue and public data sources
State
TX
County
Spearman
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
SPS
Entity
SPP
Service Type
ER
Point of Interconnection
Hitchland 345kV
Data Source
Live · SPP
- ISO / RTO
- SPP
- Trading Hub
- SPP South Hub
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- SPS.GPW1.GREATPLNS
- POI Substation
- Hitchland 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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