NOVELTY - The device has an articulated web with basic cells, an upper jack layer (1), a lower layer (6), a floating buoy (7), a liquid hull (8) and a chain (9), where the floating buoy and a jack provided in the upper jack layer are arranged to recover energy from deformation of the web. The floating buoy is provided in the basic cells. The basic cells are arranged with a hinged jib having a flexible length, and with a floating arm having a variable length and an articulation. The cells are provided in the shape of equilateral triangle.    USE - Device for recovering energy from waves in the field of electricity production and maritime protection works.    ADVANTAGE - The floating buoy and the jack provided in the upper jack layer are arranged to recover energy from deformation of the web, thus allowing the recovered energy to be transformed into green electricity, while enabling to protect the harbor and/or coast. The dimensions of the device are able to be varied so as to perfectly adapt to wavelengths of the waves including cross waves, thus enabling to permanently obtain best output. The device has a standardized construction and is realizable technically in an easy manner. The device allows dimensioning of harbor works for protection of water level adapted to typology of the site. The device avoids bathymetric problems, while protecting the environment, and simplifying administrative procedures for authorization of work. The device allows treatment of residual uncontrolled waves. The maintenance of the device is performed with traditional tools without requiring any specialized tools. The device is provided with optimal configuration for protection of water levels according to sea conditions. The device facilitates mass production, and has reduced costs with simplified maintenance. The device has large modularity and mobility with easy corrective maintenance. The device is safe from marine elements.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic side view of a buoy.'(Drawing includes non-English language text)'    Upper jack layer (1)    Lower layer (6)    Floating buoy (7)    Liquid hull (8)    Chain (9)