Abstract: The invention relates to a device (10) which comprises a stationary member (14), comprising a stabilization means (20) relative to the bottom of the expanse of water, a member (16) movable relative to the stationary member (14), comprising at least one floating element (40) intended for remaining on the surface (12) of the expanse of water, such that the swell drives the movement of said movable member (16), a guiding means (17, 18) substantially vertical to the movement of the movable member (16) relative to the stationary member (14), and a generation means (32) for electric power, arranged between the stationary member (14) and the movable member (16), intended for converting into electric power the mechanical energy from the vertical motion of the movable member (16) relative to the stationary member (14).

Abstract: The invention relates to a device (10) which comprises a stationary member (14), comprising a stabilisation means (20) relative to the bottom of the expanse of water, a member (16) movable relative to the stationary member (14), comprising at least one floating element (40) intended for remaining on the surface (12) of the expanse of water, such that the swell drives the movement of said movable member (16), a guiding means (17, 18) substantially vertical to the movement of the movable member (16) relative to the stationary member (14), and a generation means (32) for electric power, arranged between the stationary member (14) and the movable member (16), intended for converting into electric power the mechanical energy from the vertical motion of the movable member (16) relative to the stationary member (14).