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In this paper, we introduce new urban energy simulation platform SimStadt, which has been developed to support public authorities and engineering companies in the planning of the energy transition at urban scale. SimStadt design is marked by two particular features: 1- it is based on the open 3D city model CityGML and, 2- its workflow-driven structure is highly modular and extensible. These particularities allow him for a potentially unlimited variety of urban analysis, benefiting from the big geo data possibilities. This first version contains the workflows Solar and PV potential analysis, Energy demand and CO2 emission calculation, and refurbishment scenarios generation and simulation. Other workflows and plug-ins are under way, in particular district network design and simulation. This paper details these features and workflows, and presents an application on the administrative district of Ludwigsburg, a case study of half a million inhabitants spread over 34 municipalities.
Nouvel et al. (2015) studied this question.