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This talk was given during a TEDx event organized independently from the TED talks.
Enthusiast for mechanics, André developed an alternative to the chemical battery: a low tech yet innovative mechanical solution with concrete, to store solar energy at a low cost at last .
Born in 1962, André is an engineer from Arts et Métiers as well as Ecole polytechnique in France. In 1988, he begins a researcher's career then becomes head of research at Total's Hutchinson & Paulstra subsidiaries. He worked on active noise and vibration control for engines, which gave birth to 20 patents among which several are in exploitation today. With his wife Anne, he founded Energiestro in 2001, a French innovative company which develops the flywheel technology, in order to decrease the cost of energy storage which is still much too high with the battery technology. Their VOSS (flywheel for solar storage) won the "Worldwide Innovation Challenge" in 2014 and the EDF PULSE prize in 2015 .