FOCUS : A framework for energy system optimization from prosumer to district and city scale. - Jingyu Gong; Yi Nie; Jonas van Ouwerkerk; Felix Wege; Mauricio Celi Cortés; Christoph von Oy; Jonas Brucksch; Christian Bußar; Thomas Schreiber; Dirk Uwe Sauer; Dirk Müller 005; Antonello Monti (CoRR, 2023)