SPP-GEN-2023-SR26
72.5 MW storage in Mayes, OK · In queue since July 2023 · Proposed COD December 2024
72.5 MW
Capacity
1
Components
Battery
3 years
In Queue
IA Pending
IA Phase
COD target: 2024
Total Duration
1y 5m
Schedule
19 months past proposed COD
Study Phase
Surplus; 04 SOUTHEAST
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: 2024-12-09
SPP-GEN-2023-SR26 is a proposed energy storage project located in Mayes County, Oklahoma, within the Southwest Power Pool (SPP) region. The project, consisting of 72.5 MW of battery storage, entered the SPP interconnection queue on July 12, 2023. The proposed commercial operation date is December 9, 2024, and the interconnection agreement (IA) is currently pending. The interconnecting utility is American Electric Power (AEP).
The project is listed as active in the SPP queue. The point of interconnection (POI) is the Pryor Junction 138kV substation.
Generated from interconnection queue and public data sources
Realization history for this asset — final cost vs plan, COD slip vs original date, and construction duration vs cohort. Retrospective context for the operating risk view above. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
OK
County
Mayes
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
AEP
Entity
SPP
Service Type
ERIS
Point of Interconnection
Pryor Junction 138kV sub
Data Source
LBNL + Live
Composite operating risk view for this asset — climate hazards across its remaining operating life, observed generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
See the full risk decomposition + scenarios for this project.
Forward generation outlook — 10-year P50 trajectory accounting for degradation, observed curtailment, and market conditions, with probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios. Powered by InfraSure's generation modeling stack.
See the full forecast + scenario decomposition for this project.
Forward revenue, DSCR bands, and refinancing risk for this asset — 10-year cashflow projected under price, demand, and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- SPP
- Trading Hub
- SPP South Hub
- Hub Confidence
- HIGH
- POI Substation
- Junction
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.
Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
