Abstract: An electrical substation for a wind farm is configured to raise or to lower the voltage of the electricity generated by wind turbines of the wind farm in order to ensure the transmission thereof to an electricity distribution network. It includes n modules, n being an integer at least equal to 2, these modules being identical in terms of shape and exterior dimensions. Each module encloses at least one electrical transformer configured to raise or to lower the voltage, these modules being linked to one another so as to be able to deliver to the network an overall electrical power equal to the sum of the powers of each transformer.

Abstract: An electrical substation for a wind farm is configured to raise or to lower the voltage of the electricity generated by wind turbines of the wind farm in order to ensure the transmission thereof to an electricity distribution network. It includes n modules, n being an integer at least equal to 2, these modules being identical in terms of shape and exterior dimensions. Each module encloses at least one electrical transformer configured to raise or to lower the voltage, these modules being linked to one another so as to be able to deliver to the network an overall electrical power equal to the sum of the powers of each transformer.

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.