A grid-independent power supply is reasonable in areas where the development of conventional utilities is inefficient, unstable, or impossible. Especially in areas in which there is no nationwide or functioning power grid available, island systems allow access to education and health care also in rural areas or serve as a power supply for electrically-operated water pumps.
Even the power supply of villages and settlements is possible with these island systems. By the use of special high-performance batteries and in combination with wind- and hydro power an autonomous, decentralized energy supply system is established.
Thus even periods of bad weather or heavy loads can be bridged easily. A plant such as this produces enough energy to cover the electricity requirements of schools, hospitals, hotels and other facilities.