Collaborative Energy, founded in 2016 in Grenoble, develops vertical-axis wind turbines to produce local electricity consumed near the needs. The company's president, Christophe Lévêque, is convinced that the future of low-carbon electricity will not be solely centralized. It will also be decentralized, more inclusive, more acceptable, and more sovereign. The company has implemented a horse-drawn transportation service for over ten years. The city of Questembert has implemented a horse-drawn transportation service for over ten years. Sixteen municipalities in the department are concerned by appeals before the administrative court of Rennes.