REScoop MECISE is the result of a Horizon 2020 PDA project (2015- 2019) with the same acronym that aimed to mobilise European citizens and municipalities in the transition to a more sustainable and decentralised energy system. A consortium of established energy cooperatives developed projects for renewable energy and energy efficiency. At the end of the project we set-up a European Cooperative Society to offer financial facilitation services to energy communities and foster collaborations between energy communities and local municipalities: REScoop MECISE SCE.