|Lightness is a European Union funded project that contributes to a clean and fair energy transition by supporting Citizen Energy Communities. The project aims to empower citizens to generate, share and sell renewable energy and thereby contribute to making the European energy sector more sustainable and democratic. A multidisciplinary and international team of 13 entities is working on 4 areas: social engagement, generating a low-cost technological package, building innovative business models, and developing regulatory roadmaps. Lightness´ solutions will be tested in 5 pilot sites: apartment blocks in Poland; residential communities in The Netherlands; a business park in France; an energy cooperative in Spain; and a smart condominium in Italy. Join this new energy culture!