JNIBS Abstract

Authors	Date of origin	Type	Target	Text
Egbert Casper, SIG3D	June 2014	Abstract	JNIBS Article	OGC standard CityGML opens up new applications in the energy simulation of buildings The transition in the energy sector in Europe and other countries induces a strong need for calculation and simulation of all building energy demands, energy generation and energy supply. While building information models such as IFC focus on individual buildings and their neighborhood, and (2D) GIS on urban level and beyond, there is a gap for a 3D building model that suits the needs of an urban wide energy planning including simulation of demand, storage, and local infrastructure networks. CityGML as a standard of the Open Geospatial Consortium (OGC) is a comprehensive open data model for modeling, storage and exchange of virtual semantically enriched 3D city and landscape models in different levels of detail. The OGC, the Special Interest Group 3D (SIG3D) of the Spatial Data Infrastructure Germany and the Stuttgart University of Applied Sciences have held a first workshop on the development of a CityGML Energy Application Domain Extension (EnergyADE). The aim of the EnergyADE is to act as an information model for energy planning on urban scale as well as an interface to share information between existing energy planning and simulation systems. A consolidated version of a harmonized EnergyADE is expected to be finished until the end of 2014 and in addition, there are various efforts for a mapping between CityGML and IFC.