Smappee : la start-up qui affole les U.S.A

Sophie et Michel reçoivent Stefan Grosjean, CEO et fondateur de Smappee : Le Smappee est un nouvel énergimètre centralisé qui vous informe sur votre consommation électrique globale. Smappee mesure non seulement la consommation d’énergie totale de …
(Orginal – Story lesen…)

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