Within this final thesis the marine conditions of the Adriatic Sea have been analysed with emphasis on the waves. The waves are highlighted as the main starter and energy accumulator of the wave energy converter device. Some of the devices are analysed and displayed, with an emphasis on the Wells turbine. By laboratory testing of the Wells turbine model, data were obtained, and along with the help of other necessary literature, the conceptual solution of the resonant chamber was modelled. The Wells turbine was previously designed in the CATIA V5 R20 programme. This thesis presents the parts of the turbine. The resonant chamber is modelled and analysed in more detail. Its function is to compress / lug air through a diffuser into the air tunnel, where the rotor and the turbine itself are located, and whose alteration is triggered by a rotor which, converting rotation (mechanical movement) in the generator, produces electric energy. A sea wave has a pneumatic / pressure piston function, which, by raising and pulling respectively, creates a compress, in other words a pressure within the resonant chamber. Finally, the calculation of sea waves energy calculation for the default conditions, and the calculation of measurement units as a check of the obtained result are displayed.