SPP-GEN-2025-SR30
209 MW storage in Dewey, OK · In queue since August 2025 · Proposed COD December 2027
209 MW
Capacity
1
Components
Battery
11 months
In Queue
In Progress (unknown study)
IA Phase
COD target: 2027
Total Duration
2y 4m
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: 2027-12-05
SPP-GEN-2025-SR30 is a proposed 209 MW battery storage project located in Oakwood County, Oklahoma. The project is in the Southwest Power Pool (SPP) interconnection queue, having entered the queue on August 22, 2025. OG&E is the utility associated with the project, which is seeking Energy Resource (ER) service. The point of interconnection is the Tatonga 345 kV Substation.
The project is currently listed as active in the SPP queue. No proposed commercial operation date or interconnection agreement (IA) status is available. No developer is listed in the queue data, and the project is not linked to an existing operating plant. There is no indication of recent news coverage.
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
Dewey
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
OG&E
Entity
SPP
Service Type
ERIS
Point of Interconnection
Tatonga 345 kV Substation
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.
See the full risk decomposition + scenarios for this project.
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.
See the full forecast + scenario decomposition for this project.
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
- HIGH
- POI Substation
- Tatonga 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.
Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.
