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Dworshak Dam Fourth Generating Unit Expansion

Sector: Power Generation (CCGT) • Location: Ahsahka, Idaho, United States

Source: NewsBreak: Local News & Alerts

Project
Planned

The project involves expanding the Dworshak Dam powerhouse by adding a fourth generating unit in an empty turbine bay constructed over 50 years ago. This expansion aims to increase the dam's capacity by 250-300 MW, improve grid stability, reduce environmental impacts such as Total Dissolved Gas levels, and enhance operational flexibility for fish migration support. The project is in the early desi

Status
Prospective
Sector
Power Generation (CCGT), Wind, Hydro, Government, Water Supply and Storage
Location
Ahsahka, Idaho, United States of America
Updated
22 Jul 2026
Source
NewsBreak: Local News & Alerts

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The project “Dworshak Dam Fourth Generating Unit Expansion” is an infrastructure initiative in the Power Generation (CCGT) sector, located in Ahsahka, Idaho, United States. Taiyo aggregates data on it from NewsBreak: Local News & Alerts.

Participants

Sponsoring Agency

Status

Original status

planned

Taiyo status

Prospective

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The project involves expanding the Dworshak Dam powerhouse by adding a fourth generating unit in an empty turbine bay constructed over 50 years ago. This expansion aims to increase the dam's capacity by 250-300 MW, improve grid stability, reduce environmental impacts such as Total Dissolved Gas levels, and enhance operational flexibility for fish migration support. The project is in the early design phase with plans for environmental assessments and construction completion expected by Fiscal Year 2036.

Original sector

Energy

Location

Country

United States of America (USA)

State

Idaho

City

Ahsahka

Source

Source

NewsBreak: Local News & Alerts

URL

More Details

Record type

Project

Sector

Power Generation (CCGT), Wind, Hydro, Government, Water Supply and Storage

Article published date

2025-09-16

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