The potential for BIPV installation in dense urban areas: An open-source model for analysis of urban form

Evyatar Erell, Adi Vulkan, Michael Dorman, Itai Kloog

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The successful deployment of distributed photovoltaic (PV) systems requires assessment of the potential of possible installations for electricity generation. Exposure to solar radiation in dense urban locations must account for shading by adjacent structures, at high spatial and temporal resolution. 3D modelling of the shadows cast by buildings is carried out with a new R package that can simulate the shadows cast on vertical surfaces (typically walls) or horizontal ones (typically roofs), given a database of obstacles representing buildings in the form of extruded polygons, and the sun's position at any desired time interval. The methodology is demonstrated for a case-study neighbourhood in Rishon-LeZion, Israel, with diverse building typologies, but is suitable for any location, using the open-source code developed. The simulation shows which building typologies offer the greatest solar potential, calculated per dwelling, building plot area or for the entire neighbourhood. Although roofs are preferable to vertical surfaces, some facades can still make a substantial contribution to the overall solar potential of urban buildings.

Original languageEnglish
Title of host publicationPLEA 2018 - Smart and Healthy within the Two-Degree Limit
Subtitle of host publicationProceedings of the 34th International Conference on Passive and Low Energy Architecture
EditorsEdward Ng, Square Fong, Chao Ren
PublisherSchool of Architecture, The Chinese University of Hong Kong
Pages922-923
Number of pages2
ISBN (Electronic)9789628272365
StatePublished - 2018
Externally publishedYes
Event34th International Conference on Passive and Low Energy Architecture: Smart and Healthy Within the Two-Degree Limit, PLEA 2018 - Hong Kong, China
Duration: 10 Dec 201812 Dec 2018

Publication series

NamePLEA 2018 - Smart and Healthy within the Two-Degree Limit: Proceedings of the 34th International Conference on Passive and Low Energy Architecture
Volume3

Conference

Conference34th International Conference on Passive and Low Energy Architecture: Smart and Healthy Within the Two-Degree Limit, PLEA 2018
Country/TerritoryChina
CityHong Kong
Period10/12/1812/12/18

Keywords

  • Density
  • Open source code
  • Shadowing
  • Solar energy
  • Urban form

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