Development of digital twins for solar energy applications aimed at exploitation and penetration of photovoltaic systems from level city ​​(link) to global scale and coverage (link). The term “digital twin” refers to a virtual model of a real system and hence, a digital twin for urban solar applications scale dynamically represents distributed electricity generation from photovoltaic systems. The results will support the download decisions towards a gradual energy transition strategy, promoting the transformation of existing urban tissues into “smart” sustainable energy cities (link).