Photovoltaic panels embody the latest achievements of space technology. Such energy sources do not require maintenance and repairs, because they do not contain absolutely no moving parts. They do not create noise and are completely safe from an environmental point of view. Photovoltaic panels (they are called solar panels) are made of polycrystalline silicon cells.
This technology enables the production of batteries relatively high electricity generation efficiency by 9 - 24%, while the cost of photovoltaic solar cell modules is relatively low.