Lake power station supplied with water by the EDF de la Durance canal, commissioned in 1925 . Drop height of 38 5 m... Lake power station supplied with water by the EDF de la Durance canal, commissioned in 1966 . Fall height of 71 5 m... Lake power station supplied with water by the EDF de la Durance canal, commissioned in 1962 . Fall height of 85 5 m.