Abstract
The possibility of using osmotic energy as renewable energy source is discussed here, and some experimental results at realistic operating conditions are presented. It is shown how a membrane-based PRO system could transform osmotic energy of seawater into electricity aided by river or wastewater. This process mainly requires novel membranes, currently in development: some of these membranes are tested in realistic conditions of temperature, salinity and different flows values which makes possible to predict expected power productions