Dworshak Dam Fourth Generating Unit Expansion
Sector: Power Generation (CCGT) • Location: Ahsahka, Idaho, United States
Source: Dailyfly News
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, providing significant power generation, grid stability, and environmental benefits. Initial design work began in January 2025, with flooding tests conducted in July 2025 to assess the s
- 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
- Dailyfly News
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Project Information
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, providing significant power generation, grid stability, and environmental benefits. Initial design work began in January 2025, with flooding tests conducted in July 2025 to assess the space for conversion into an operating hydropower unit. The project includes a full Environmental Impact Statement and consultations under environmental laws, with construction expected to complete by Fiscal Year 2036. |
Original sector | Energy |
Location
Country | United States of America (USA) |
State | Idaho |
City | Ahsahka |
Source
Source | Dailyfly News |
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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