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Colstrip Power Plant Ownership Transfer

Sector: Power Generation (CCGT) • Location: Colstrip, Montana, United States

Source: Missoula Current

Project
Planned

NorthWestern Energy will acquire Avista's and Puget Sound Energy's ownership of Colstrip Units 3 & 4, totaling 592 megawatts, effective January 1, 2026. This transfer was facilitated by regulatory allowances to ignore certain EPA emissions rules.

Status
Prospective
Sector
Power Generation (CCGT)
Location
Colstrip, Montana, United States of America
Updated
22 Jul 2026
Source
Missoula Current

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Project Information

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The project “Colstrip Power Plant Ownership Transfer” is an infrastructure initiative in the Power Generation (CCGT) sector, located in Colstrip, Montana, United States. Taiyo aggregates data on it from Missoula Current.

Participants

Not available for this record.

Status

Original status

Planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

NorthWestern Energy will acquire Avista's and Puget Sound Energy's ownership of Colstrip Units 3 & 4, totaling 592 megawatts, effective January 1, 2026. This transfer was facilitated by regulatory allowances to ignore certain EPA emissions rules.

Original sector

Energy

Location

Country

United States of America (USA)

State

Montana

City

Colstrip

Source

Source

Missoula Current

URL

More Details

Record type

Project

Sector

Power Generation (CCGT)

Article published date

2025-05-28

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