IP-551
240 MW hybrid in Elmore, ID · In queue since April 2019 · Proposed COD December 2022
240 MW
Capacity
1
Components
Solar
7y 1m
In Queue
IA Executed
IA Status
Signed Nov 2021
Queue → IA
2y 7m
IA → COD
1y 1m
Total Duration
2y 7m
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: 2022-12-01
The proposed IP-551 project is a 240 MW solar and battery hybrid development in Elmore County, Idaho. The project, developed by Bennett Solar B LLC, consists of 240 MW of solar capacity. It is interconnected to the Idaho Power Company (IP) grid at the RTSN 230kV point of interconnection.
The project entered the IP interconnection queue on April 8, 2019, with a proposed commercial operation date of December 1, 2022. An Interconnection Agreement (IA) was executed on November 19, 2021, though the project's current status is listed as suspended.
Generated from interconnection queue and public data sources
State
ID
County
Elmore
Grid Region
Mountain West
Market
—
Developer
Bennett Solar B LLC
Utility
Idaho Power Company
Entity
IP
Service Type
—
Point of Interconnection
RTSN 230kV
Data Source
LBNL
- ISO / RTO
- MOUNTAIN_WEST
- Trading Hub
- MID-C
- 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.
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