NWMT-390
500 MW hybrid in Yellowstone, MT · In queue since August 2020 · Proposed COD December 2023
500 MW
Capacity
1
Components
Solar
5y 9m
In Queue
Facility Study
IA Status
COD target: 2023
Total Duration
3y 4m
Schedule
28 months past proposed COD
Interconnection request submitted to ISO/RTO
Project undergoes interconnection studies to assess grid impact.
Typical: 18–36 months
Interconnection agreement not yet executed
Typical: 30–60 days (negotiation)
Proposed COD: 2023-12-31
The proposed NWMT-390 project is a 500 MW hybrid solar and battery energy storage development in Yellowstone County, Montana. Interconnecting to NorthWestern Energy via the 500kV Broadview Substation, it consists of 500 MW of solar generation capacity. The project is listed in the NWMT interconnection queue with an entry date of August 13, 2020.
The project's proposed commercial operation date is December 31, 2023. Its interconnection status is currently in the Facility Study phase. The project has appeared in recent news coverage.
Generated from interconnection queue and public data sources
State
MT
County
Yellowstone
Grid Region
Mountain West
Market
—
Developer
—
Utility
NorthWestern Energy
Entity
NWMT
Service Type
—
Point of Interconnection
500kV at Broadview Substation
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.
