he renewable energy sources are one of the main priority of the European policy. A comparative economic analysis between photovoltaic (PV) and thermoelectric (TE) generators used to provide lighting for isolated rural homes is presented. Although panel costs are similar in both cases, appreciable lower generation costs are obtained by TEs. . The Bulgarian company developed a technology that utilizes the thermo-panels advantages by constructing roofs based on them and thus providing an opportunity to residential homes and industrial buildings to be fully and independently supplied with electricity.