The device (1) has a power controller arrangement (18) i.e. step-up-chopper arrangement, including two power controllers (6) i.e. step-up-choppers, connected in parallel to each other. Each controller transforms a direct current (DC) voltage (U1) at a DC o...

The photovoltaic system (20) has reference solar generator-inverter module (28,30) that is operated at maximum operating point, to generate electric power from solar radiation. The generator-inverter module is operated at throttled operating point, to gene...

The insular unit (110) has a photovoltaic unit (113) for producing energy from renewable resources, an energy storing unit (115) for storing energy, a load connection unit for connecting the insular unit with load unit (111) for using energy and a power su...

The energy control device has an energy production unit (113), particularly photovoltaic unit, for producing energy from renewable resources and control unit (117) formed to steer the quantity of the energy, which is fed into the energy network as a functi...