SPP-GEN-2024-035
270 MW hybrid in Brown, SD · In queue since October 2024 · Proposed COD December 2027
270 MW
Capacity
1
Components
Solar
1y 9m
In Queue
System Impact Study
IA Phase
COD target: 2027
Total Duration
3y 2m
Study Phase
DISIS-2024-001; 01 NORTH
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: 2027-12-30
SPP-GEN-2024-035 is a proposed 270 MW hybrid solar and battery project located in Brown County, South Dakota. The project, which consists of 270 MW of solar generation, is in the Southwest Power Pool (SPP) interconnection queue as of October 30, 2024. The proposed commercial operation date is December 30, 2027.
The Balancing Authority is BEPC. The project's interconnection status is currently in the System Impact Study phase. The point of interconnection (POI) is the Groton 345 kV Substation.
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
SD
County
Brown
Grid Region
SPP (Southwest Power Pool)
Market
ISO/RTO Member
Developer
—
Utility
BEPC
Entity
SPP
Service Type
NRIS/ERIS
Point of Interconnection
Groton 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 North Hub
- Hub Confidence
- HIGH
- Nearest Node (Estimated)
- WAUE.BEPM.GGS1
- POI Substation
- Groton 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.
