Seminoe Pumped Water Storage Project
Sector: Hydro • Location: Casper, Wyoming, United States
Source: Jacksonville Journal-Courier
A proposed $4 billion pumped-water electricity storage facility at Seminoe Reservoir in Wyoming. The project involves building a 13,400-acre-foot reservoir in the Bennett Mountains above the current Seminoe Reservoir to store water pumped uphill during off-peak electricity demand hours. The stored water would be released to generate hydroelectricity during higher-demand evening hours, providing en
- Status
- Prospective
- Sector
- Hydro, Energy Storage, Water Supply and Storage, Power Generation (CCGT), Commercial
- Location
- Casper, Wyoming, United States of America
- Updated
- 22 Jul 2026
- Source
- Jacksonville Journal-Courier
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Project Information
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 | A proposed $4 billion pumped-water electricity storage facility at Seminoe Reservoir in Wyoming. The project involves building a 13,400-acre-foot reservoir in the Bennett Mountains above the current Seminoe Reservoir to store water pumped uphill during off-peak electricity demand hours. The stored water would be released to generate hydroelectricity during higher-demand evening hours, providing energy storage to help meet Wyoming's future energy needs and lower electricity costs. |
Original sector | Energy |
Budget |
Location
Country | United States of America (USA) |
State | Wyoming |
City | Casper |
Source
Source | Jacksonville Journal-Courier |
URL |
More Details
Record type | Project |
Sector | Hydro, Energy Storage, Water Supply and Storage, Power Generation (CCGT), Commercial |
Article published date | 2026-06-01 |
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