IP-608
300 MW hybrid in Sweetwater, WY · In queue since June 2021 · Proposed COD June 2025
300 MW
Capacity
1
Components
Solar
5y 1m
In Queue
IA Executed
IA Phase
Signed May 2023
Queue → IA
1y 11m
IA → COD
2y 1m
Total Duration
1y 11m
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement executed — binding commitment to build
Typical: 30–60 days (negotiation)
Construction pending
Typical: 18–30 months
Proposed COD: 2025-06-01
IP-608 is a proposed 300 MW hybrid solar and battery project located in Sweetwater County, Wyoming. The project, which also includes a wind component, is being developed by NextEra Energy Resources Interconnection Holdings, LLC, and is interconnected with Idaho Power Company at the JBRG 345kV Substation.
The project is listed in the IP (Idaho Power) interconnection queue with an entry date of June 28, 2021, and a proposed commercial operation date of December 1, 2025. An Interconnection Agreement (IA) for the project was executed on May 9, 2023. The project is currently listed as active in the interconnection queue.
Generated from interconnection queue and public data sources
Realization risk from now to commercial operation — financing close, EPC and tax-equity counterparty mix, and COD probability vs the proposed date. The diligence view that determines whether the deal actually closes. Powered by InfraSure's development-stage modeling stack.
See the full development-risk decomposition for this project.
State
WY
County
Sweetwater
Grid Region
Mountain West
Market
—
Developer
NextEra Energy Resources Interconnection Holdings, LLC
Utility
Idaho Power Company
Entity
IP
Service Type
NRIS
Point of Interconnection
JBRG 345kV Substation
Data Source
LBNL
Composite operating-phase risk view — what this asset's risk profile will look like once it commissions. 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 — first-year production estimate and 10-year P50 trajectory, 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 projection, and financing-close risk — conditioned on commercial operation. First-year DSCR, 10-year cashflow, and counterparty exposure across price and policy scenarios. Powered by InfraSure's asset cashflow stack.
See the full revenue + DSCR projection for this project.
- ISO / RTO
- MOUNTAIN_WEST
- Trading Hub
- FOURCORNERS
- Hub Confidence
- UNKNOWN
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.
