<p><span style="font-family:Verdana,Geneva,sans-serif">The article is devoted to the use of renewable energy sources. It provides a comparative analysis of existing non-traditional energy sources, one of which is a photoelectric converter of the solar energy into the electrical one. In addition, the article highlights issues of increasing their efficiency and main factors affecting a conversion index. Existing modern methods and devices for cleaning optical surfaces of photovoltaic panels have been reviewed, that enabled proposing a design of mechanical and electric parts of a device for cleaning photovoltaic panels, as well as a block diagram of the electronic part.</span></p>