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Seminoe Pumped Water Storage Project

Sector: Hydro • Location: Casper, Wyoming, United States

Source: WyoFile

Project
Planned

A proposed 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 Seminoe Reservoir to store water pumped uphill during off-peak electricity demand hours and release it to generate hydroelectricity during peak demand. The project aims to provide energy storage to support Wyoming's future e

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
WyoFile

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Project Information

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The project “Seminoe Pumped Water Storage Project” is an infrastructure initiative in the Hydro sector, located in Casper, Wyoming, United States. Taiyo aggregates data on it from WyoFile.

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 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 Seminoe Reservoir to store water pumped uphill during off-peak electricity demand hours and release it to generate hydroelectricity during peak demand. The project aims to provide energy storage to support Wyoming's future energy needs and improve grid reliability and affordability.

Original sector

Energy

Budget

Location

Country

United States of America (USA)

State

Wyoming

City

Casper

Source

Source

WyoFile

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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