PSE-88
750 MW generation in Wheatland, MT · In queue since July 2020 · Proposed COD October 2026
750 MW
Capacity
1
Components
Wind
5y 10m
In Queue
IA Executed
IA Status
COD target: 2026
Total Duration
6y 3m
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: 18–36 months
Proposed COD: 2026-10-31
PSE-88 is a proposed 750 MW wind generation project located in Wheatland County, Montana. The project, developed by Puget Sound Energy (PSE), entered the Puget Sound Energy interconnection queue on July 31, 2020, with a proposed commercial operation date of October 31, 2026. The interconnection agreement (IA) for the project has been executed.
The proposed project consists of 750 MW of wind capacity. It is designated to connect to a proposed new substation. The development has been the subject of recent news coverage.
Generated from interconnection queue and public data sources
State
MT
County
Wheatland
Grid Region
Mountain West
Market
—
Developer
—
Utility
Puget Sound Energy
Entity
PSE
Service Type
—
Point of Interconnection
Proposed New 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.
Last updated 2026-03-31
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