VH quatrevingtreize develops machines to build a sustainable energy system that respects our environment and our living conditions on the planet. They are flow-wave turbines: hydro rotors capable of extracting energy of the river and tidal streams but also waves. These are the result of my research at Aix Marseille University but also my experience of the needs of territories in terms of energy transition. They are biobased and we are able to fully recyclable them into new machines (Craddle to Craddle). They interact smoothly with the aquatic environment. Their financial and energy costs are covered within five years by the energy they produce.