Inferring roof semantics for more accurate solar potential assessment

I. Apra, C. Bachert, C. Cáceres Tocora, Tufan, O. Veselý, E. Verbree*

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

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In guiding the energy transition efforts towards renewable energy sources, 3D city models were shown to be useful tools when assessing the annual solar energy generation potential of urban landscapes. However, the simplified roof geometry included in these 3D city models and the lack of additional semantic information about the buildings' roof often yield less accurate solar potential evaluations than desirable. In this paper we propose three different methods to infer and store additional information into 3D city models, namely on physical obstacles present on the roof and existing solar panels. Both can be used to increase the accuracy of roof solar panel retrofit potential. These methods are developed and tested on the open datasets available in the Netherlands, specifically AHN3 lidar point-cloud and PDOK aerial photography. However, we believe they can be adapted to different environments as well, based on the available datasets and their precision locally available.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Issue number4/W4-2021
Publication statusPublished - 2021
Event16th 3D GeoInfo Conference 2021 - New York City, United States
Duration: 11 Oct 202114 Oct 2021


  • AHN3
  • Detection
  • Machine learning
  • Obstacle
  • Roof
  • Semantics
  • Solar potential


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