Cascade Reservoir and Dam

Completed in 1969 to advance the energy needs of the original Cascade Lithium Mine, the GATE Hydropower Plant is the world’s only subterranean hydropower system. Following GATE’s purchase of the facility in 1977, 'The Dam' was heavily refurbished and now delivers up to 400MW. It provides power to the facility and specialist sub-systems, including the GATE Fusion Research Unit located directly beneath this cavern. Providing more than just power, the Cascade Reservoir is also home to GATE’s Neutrino Detection Apparatus, an ever-growing suite of advanced experiments and investigations, and a local glow worm colony.