IP-608
300 MW hybrid in Sweetwater, WY · In queue since June 2021 · Proposed COD December 2025
300 MW
Capacity
1
Components
Solar
4y 11m
In Queue
IA Executed
IA Status
Signed May 2023
Queue → IA
1y 11m
IA → COD
2y 7m
Total Duration
1y 11m
Schedule
5 months past proposed COD
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)
Project under construction
Typical: 18–30 months
Proposed COD: 2025-12-01
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
State
WY
County
Sweetwater
Grid Region
Mountain West
Market
—
Developer
NextEra Energy Resources Interconnection Holdings, LLC
Utility
Idaho Power Company
Entity
IP
Service Type
—
Point of Interconnection
JBRG 345kV Substation
Data Source
LBNL
- 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.
