My passion for alternative energy started in the early 2000s. At that time it was like a hobby. The huge flow of information on this topic aroused my interest in the problem of harnessing the energy of the sea wave. This energy was presented in mass media as depending on the length of the sea wave front. While still working in the company WARTSILA, during downtime, with the permission of my superiors, I began to make a demonstration model of a sea wave power plant, as it was in my imagination. This work took me more than two years. By that time I had already, as it seemed to me, basically found a way to harness the energy of the sea wave. And it was not wave energy, but gravitational energy. The height of the wave and its periodic change, only contributed to the work of the mechanism capable of receiving electricity from the gravitational field. And such a mechanism was a two-way piston pontoon pump with a fixed piston. It is the design of a two-way pontoon pump with a fixed piston, which I designed, with cyclic changes in the water level allows to obtain clean energy in various ways.