DEVICE FOR DRIVING A CLOSURE OR SHADING MEMBER IN A BUILDING BY MEANS OF A SOLAR ENERGY SOURCE

A device for driving a closure component () in a building from a solar energy source (), comprising at least one low-voltage alternating current electric motor () mechanically coupled to the closure component, a direct current electrical energy accumulator element (), a solar energy source delivering a direct voltage. The electrical energy accumulator element has a nominal voltage lower than said effective electric voltage and greater than the direct voltage delivered by the solar energy source. A DC-DC charger () converts the output electrical energy from the solar energy source into electrical energy with an electric voltage for charging the electrical energy accumulator element. A DC-AC converter () converts the electrical energy with a direct output voltage of the electrical energy accumulator element into electrical energy with an alternating voltage that is able to power said electric motor.