Identifying solar energy potentials and intensifying the climate-friendly use of photovoltaics within urban areas.

9th Symposium of the International Society for Digital Earth

地球科学;计算机科学

De Lange, N.^1

Institute for Geoinformatics and Remote Sensing, University of Osnabrueck, Barbarastrasse 22b, Osnabrueck

D49076, Germany^1

关键词: Airborne Laser scanning;    Digital Objects;    Fully automated;    Generate electricity;    Multiple regions;    Renewable energy law;    Solar potential;    Use of renewable energies;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/34/1/012004/pdf
DOI  :  10.1088/1755-1315/34/1/012004

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Limited non-renewable fossil energy reserves and the essential ideas of sustainability have caused an increase in the demand for solar energy. The intensified use of renewable energy in Germany is primarily encouraged by the German renewable-energy-law. Solar panels mounted on roofs generate electricity using the energy radiated from the sun by taking advantage of the photovoltaic effect. However, not every roof is usable for power generation through solar energy. Therefore, web-based solar energy registers for multiple regions in Germany have been developed that provide detailed information on roofs suitable for carrying solar panels. The analyses are based on a digital object model derived from airborne laser scanning data of high accuracy and a fully automated technology to classify the points. First, roof points are separated according to their single roof sides and are converted into polygons. Then, exposure, slope, size of the roof, and particularly shading effects are computed to calculate the solar potential of each roof side. The web-GIS provides detailed information about the roof's suitability, such as the installable capacity and the expected generation of electricity. Thus, it helps house owners to calculate their investment and later revenues.