3D roof modelling for accurate assessment of solar potential

It is foreseen to develop a “smart city” service ai med to provide accurate assessment of solar energy potential for buildings under the scope of t he iSCOPE “interoperable Smart City services through an Open Platform for urban Ecosystems” (ICT PSP) project funded by the European Commission and “Spatial, environmental, energy and social aspects of developing settlements and climate changes – mutual aspects” project funded by the Serbian Ministry of science. The service will be deployed for the town of Indjija as the pil ot site. 3D model of roofs is required to serve as the information basis for the service. The paper is de cribing an efficient automated methodology for generating the 3D model of single-plane and 2-p lane roofs from rather coarse DSM (Digital Surface Model) created automatically from stereo-ph togrammetry. The assessed accuracy of the generated model is proved to be sufficient for the purpose.