The paper represents results of research of a perspective power unit based on the solid oxide fuel cells (SOFC) fueled by the synthetic gas (syn-gas). As compared with the fuel cells of other types, SOFC has an opportunity to work with the hydrocarbon fuels converted into the syn-gas. Application of nanocatalytic membranes for a syn-gas generation is analyzed. The paper predicts an efficient technology of energy and pure water production from an alternative renewable sources.