The device finds application in alternative energy engineering and in the utilization of renewable energy sources. The generated electricity can be used for lighting the overpass, for heating, for pumping seawater to reservoirs or pools, or for other technological needs, such as decomposing water into hydrogen and oxygen. The device is a system of cylinders (1, 5, 9, and 13) mounted vertically on the pylons of existing bridges or overpasses (17), the lower ends of which can be located above the mean sea level, featuring only pressure valves (3, 8, 12, and 16) in their upper part. The cylinders (1, 5, 9, and 13) can be secured such that their lower ends are submerged underwater at a depth equal to the average expected wave height, or they can be driven into the seabed, being equipped with side openings (23) located underwater. Suction valves (2, 6, 10, and 14) are also mounted in their upper sections. The pressurized air is directed through pipes (7, 11, and 15) and a common pipeline (4) to the working blades of an air turbine (18), coupled to a generator (19), connected to a corresponding rectifier (20), rechargeable battery (21), and a relay (22).
