Projects

Pumped Storage Projects

The following are among the leading pumped storage projects currently being developed by Gridflex:

Maysville Pumped Storage

Location: Mason County, Kentucky
Type: Closed Loop Pumped Storage using Underground Mine
Generating Capacity: 1,000 MW
Energy Storage Potential: 11,000 MWh

White Pine Pumped Storage

Location: Ely County, Nevada
Type: Closed Loop Pumped Storage
Generating Capacity: 750 MW
Energy Storage Potential:  9,000 MWh

Eldorado Pumped Storage

Location: Clark County, Nevada
Type: Closed Loop Pumped Storage
Generating Capacity: 750-1,000 MW
Energy Storage Potential:  11,000 MWh

Rose Creek Pumped Storage

Location: Mineral County, Nevada
Type: Semi-Closed Loop with Integrated Desalination
Generating Capacity: 200-250 MW
Energy Storage Potential: 2,000-3,000 MWh

Black Canyon Pumped Storage

Location:  Carbon County, Wyoming
Type: Pumped storage utilizing existing lower reservoirs
Generating Capacity: 700-1,000 MW
Energy Storage Potential: 11,000 MWh

Owyhee Pumped Storage

Location:  Malheur County, Oregon
Type: Pumped storage utilizing an existing lower reservoir
Generating Capacity: 500 MW
Energy Storage Potential: 12,000 MWh

Black Mountain Pumped Storage

Location: Mineral/Lyon Counties, Nevada
Type: Closed Loop Pumped Storage
Generating Capacity: 500-1,000 MW
Energy Storage Potential: 13,500 MWh

Prineville Pumped Storage

Location: Crook County, Oregon
Type: Existing Reservoir
Generating Capacity: 150-200 MW
Energy Storage Potential:1,250 MWh

Cascade Pumped Storage

Location: Snohomish County, Washington
Type: Semi-Closed Loop
Generating Capacity: 600 MW
Energy Storage Potential: 10,500 MWh

Gridflex is investigating additional high-potential pumped storage sites in areas where they can meet needs for flexible capacity and support renewable resource integration.