Lumen: A Case Study of Designing for Sustainable Energy Communities through Ambient Feedback. - Anders Høgh Hansen; Rikke Hagensby Jensen; Lasse Stausgaard Jensen; Emil Kongsgaard Guldager; Andreas Winkel Sigsgaard; Frederik Moroder; Dimitrios Raptis; Laurynas Siksnys; Torben Bach Pedersen; Mikael B. Skov (OZCHI, 2020)