SPP-GEN-2023-SR15
50 MW storage in Choctaw, OK · In queue since March 2023 · Proposed COD June 2026
50 MW
Capacity
1
Components
Battery
3y 2m
In Queue
IA Executed
IA Status
COD target: 2026
Total Duration
3y 3m
Interconnection request submitted to ISO/RTO
SPP uses the Definitive Interconnection System Impact Study (DISIS) cluster process.
Typical: 36–48 months (improving)
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Project under construction
Typical: 6–18 months
Proposed COD: 2026-06-01
SPP-GEN-2023-SR15 is a proposed 50 MW battery storage project located in Choctaw County, Oklahoma. The project, which is in the Southwest Power Pool (SPP) interconnection queue, consists of a single 50 MW battery component. The queue entry date is March 27, 2023, with a proposed commercial operation date of June 1, 2026. The interconnecting utility is Western Farmers Electric Cooperative (WFEC).
The project's interconnection agreement (IA) has been executed. The point of interconnection (POI) is the Hugo Power Plant 138 kV Substation.
Generated from interconnection queue and public data sources
State
OK
County
Choctaw
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
WFEC
Entity
SPP
Service Type
—
Point of Interconnection
Hugo Power Plant 138 kV Substation
Data Source
LBNL + Live
- ISO / RTO
- SPP
- Trading Hub
- SPP South Hub
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- OKGE.CCCO.COGEN
- POI Substation
- Osage Power Plant 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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