Connecting one of our award winning Start-up Nenufar, with a major industrial actor (AirLiquide), ARIES is trying to bridge the gap between small biogas production units and larger gas distribution networks – the project is twofold: one technological part is dedicated to the upgrading of biomethane, and the other part is the definition of a sustainable integration of biomethane production units in farms (often remote and without nearby access to natural gas network). The solution will integrate financial and environmental dimensions of sustainability. Local reuse of biogas will then be privileged when possible, and cost-benefit analysis will be conducted for different sizes of production units.