Method and device for using electrical energy of a device connected to a household power network for generating renewable electrical energy

摘要

In a method for using electrical energy of a device (2) connected to a domestic power network (3) for generating renewable electrical energy, in particular a photovoltaic system (2a) and / or a wind turbine, at least a part of the device (2) for generating Renewable electrical energy generated electrical energy as electrical power to a plurality of consumers connected to the house power network (3) (11, 12, 13, 14) supplied and consumed by the consumers (11, 12, 13, 14). The difference between the electrical energy generated by the renewable electrical energy generating device (2) and the electrical energy consumed by the consumers (11, 12, 13, 14) connected to the household power network (3) is measured and that of the consumers ( 11, 12, 13, 14) unused excess electrical energy is supplied to a water heater (19) to heat water.