SPP-GEN-2023-SR25
72.5 MW storage in Mayes, OK · In queue since July 2023 · Proposed COD December 2028
72.5 MW
Capacity
1
Components
Battery
3y 3m
In Queue
IA Pending
IA Phase
COD target: 2028
One connected view of the asset's ownership, operating or development evidence, grid context, commercial relationships, history, and forward outlook.
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Total Duration
5y 5m
Study Phase
Surplus; 04 SOUTHEAST
Interconnection request submitted to ISO/RTO
IA FULLY EXECUTED/ON SCHEDULE
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: 2028-12-31
SPP-GEN-2023-SR25 is a proposed battery energy storage development project located in Mayes County, Oklahoma. The project has a total capacity of 72.5 MW, consisting entirely of a single battery storage component. No developer has been identified in the available data. The project is planned to connect to the grid at the Dry Gulch 161kV substation, with GRDA listed as the associated utility.
The project is listed as active in the Southwest Power Pool (SPP) interconnection queue, which it entered on July 12, 2023. It has requested Energy Resource Interconnection Service (ERIS) and is being evaluated in the "Surplus; 04 SOUTHEAST" study phase, indicating that it is being processed through SPP's surplus interconnection service track. Its interconnection agreement status is IA Pending, and the proposed commercial operation date is December 31, 2028.
Generated from interconnection queue and public data sources
Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. 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
GRDA
Entity
SPP
Service Type
ERIS
Point of Interconnection
Dry Gulch 161kV sub
Data Source
LBNL + Live
Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.
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Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.
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Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. 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
- 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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