Method for installing a so-called "marine" pumped-storage hydroelectric power plant and corresponding plant

Abstract

The present invention relates to a method for installing a pumped-storage hydroelectric power station, referred to as “marine PSH station”, which includes a dam located at a higher altitude than sea level, a hydroelectric plant configured to operate as a pump-motor assembly for pumping seawater towards said dam, or as a turbine-alternator assembly for producing electricity by releasing water from the dam into the sea via at least one pipe connecting said dam to said hydroelectric plant; characterized in that: the hydroelectric plant used is presented in the form of at least one coffer dam at least the bottom portion of which is sealed; said coffer dam is transported until the base of said dam (RE); said coffer dam is immobilized in the sea; and said coffer dam is connected to said pipe.

Dependencies are inferred from the claim text.