SPP-GEN-2023-057
150 MW storage in Pawnee, OK · In queue since October 2023 · Proposed COD May 2028
150 MW
Capacity
1
Components
Battery
2y 7m
In Queue
System Impact Study
IA Status
COD target: 2028
Total Duration
4y 7m
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: 2028-05-31
SPP-GEN-2023-057 is a proposed 150 MW battery storage project located in Pawnee County, Oklahoma. The project, under consideration in the Southwest Power Pool (SPP) interconnection queue, is being developed by Grand River Dam Authority (GRDA). The project entered the queue on October 2, 2023, and has a proposed commercial operation date of May 31, 2028.
The project's interconnection status is currently in the System Impact Study phase. The point of interconnection (POI) is the Pawnee Switch 138 kV. The project has appeared in recent news coverage regarding SPP queue activity.
Generated from interconnection queue and public data sources
State
OK
County
Pawnee
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
GRDA
Entity
SPP
Service Type
—
Point of Interconnection
Pawnee Switch 138 kV
Data Source
LBNL + Live
- ISO / RTO
- SPP
- Trading Hub
- SPP South Hub
- Hub Confidence
- HIGH
- POI Substation
- Pawnee
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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