SPP-GEN-2024-338
350 MW generation in Johnston, OK · In queue since March 2025
350 MW
Capacity
0
Components
1y 2m
In Queue
—
IA Status
Total Duration
1y 2m
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-2024-338 is a proposed 350 MW solar generation project in Johnston County, Oklahoma. The project is located within the Southwest Power Pool (SPP) region and is listed in the SPP interconnection queue as of March 1, 2025. The proposed point of interconnection (POI) is the Pittsburg - Johnston County 345 kV line.
The project, which utilizes photovoltaic technology, is seeking ER/NR service and is currently listed as active in the queue. The interconnecting utility is AEP.
Generated from interconnection queue and public data sources
State
OK
County
Johnston
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
AEP
Entity
SPP
Service Type
ER/NR
Point of Interconnection
Pittsburg - Johnston County 345 kV line
Data Source
Live · SPP
- 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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