This project aims to extract as much energy as possible from ocean waves/ tides to shift the dependency of power generation from conventional sources. With the world now veering to electric vehicles, the electricity demand will increase rapidly. A Mechanical system is designed to utilize tidal or wave energy to compress air. The system includes a reciprocating compressor (piston contained in a chamber including an air intake port). This unit is connected to a storage tank with a non-return valve. The piston is driven by a lever arm which on the other end is attached to a movable power transfer shaft. A float is present on the lower end of the rod and is set in the ocean. As the float is displaced upwardly by waves, so are the rod and the lever arm compelling the piston at another end to compress air. The compressed air is stored at a high pressure in a storage tank. Multiple compressor units will aid in filling the tank faster and reducing the load on the compressor. The compressed air is then transferred from the storage tank to a turbine, where electricity is generated. The calculations are carried out for the complete setup while taking standard turbine data. The project mainly focuses on the design and analysis of Storage Tank (structural), buoy (structural and Hydrodynamic simulation) and motion study on the entire setup. The aim is to produce 3 MW power in one cycle (approx. 12 hours).