Solar Potential Roofs Wuppertal 2010

The data set contains photogrammetrically defined roof surfaces from the urban sealing data information system Verdis with the area size (Attribute “AREA”) and the solar potential (attribute “MEDIAN”). The data set was generated by a cross-section of the roof sub-areas with a comprehensive calculation of solar radiation. The calculation of solar radiation in 0.5 m x 0.5 m grid cells was carried out at the beginning of 2010 by the Innsbruck-based company LaserData GmbH on behalf of the City of Wuppertal. The global radiation value and shades were taken into account. As a surface model for this simulation, 3D results of laser scanner flaps were used in 12/2008 and 01/2009. The reference date of the dataset is therefore 01/2009. The roof surfaces of later buildings are therefore not included in the data base. The solar potential is expressed as the average energy density of solar radiation in kWh per square metre per year for each part of the roof. The median of the annual potential values of all grid cells, which are at least pro rata in the respective roof area, is used as an average of the annual potential values projected over 1 square metre. The data set was published in the Wuppertal Environmental and Geodata Portal on 27 April 2010. It is available in the form of ESRI shape files, as KML and GeoJSON file under the open data license CC-BY 4.0.