SPP-GEN-2024-SR15
300 MW storage in Yoakum, TX · In queue since October 2024 · Proposed COD May 2026
300 MW
Capacity
1
Components
Battery
1y 7m
In Queue
In Progress (unknown study)
IA Status
COD target: 2026
Total Duration
1y 7m
Schedule
0 months past proposed COD
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)
Proposed COD: 2026-05-01
SPP-GEN-2024-SR15 is a proposed 300 MW battery storage project located in Yoakum County, Texas. The project is in the Southwest Power Pool (SPP) interconnection queue as of October 24, 2024, with a proposed commercial operation date of May 1, 2026. The interconnection agreement status is listed as "In Progress (unknown study)".
The project consists of 300 MW of battery storage. The interconnecting utility is Southwestern Public Service (SPS). The point of interconnection (POI) is the Mahoney 230kV Substation.
Generated from interconnection queue and public data sources
State
TX
County
Yoakum
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
SPS
Entity
SPP
Service Type
—
Point of Interconnection
Mahoney 230kV Substation
Data Source
LBNL + Live
- ISO / RTO
- SPP
- Trading Hub
- SPP South Hub
- Hub Confidence
- MEDIUM
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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