期刊
SOLAR ENERGY
卷 225, 期 -, 页码 734-746出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.solener.2021.07.060
关键词
Building integrated photovoltaics (BIPV); Visual impact; Visibility analysis; Solar irradiation simulation; Mapping tool
资金
- National Research Foundation
- Singapore Economic Development Board (EDB) under its Energy Innovation Research Programme [NRF2012EWT-EIRP001-023]
- National University of Singapore (NUS)
- National Research Foundation Singapore (NRF)
- Energy Market Authority of Singapore (EMA)
- Singapore Economic Development Board (EDB)
This study proposes a comprehensive mapping tool to investigate the feasibility of building integrated photovoltaics (BIPV) applications, with a focus on optimizing renewable energy production while preserving urban aesthetics. The tool was tested through a case study on buildings along Orchard Road in Singapore, involving visibility analysis, solar energy harvesting potential assessment, and visualization of suitable building surfaces for BIPV. Different deployment strategies were suggested based on visual impact, ranging from high-efficiency technologies to aesthetic BIPV and media walls.
Deployment of building integrated photovoltaics (BIPV) requires smart planning to optimise the production of renewable energies, while preserving the aesthetic quality of the urban landscape, especially in densely built-up urban environments. A comprehensive mapping tool is proposed here to investigate the feasibility of BIPV applications, by introducing a quantitative visual impact assessment in addition to the traditional energy yield projections. The concept is tested in a case study of buildings along Orchard Road, the main commercial and tourist boulevard in the South-East Asian city state of Singapore. First, a visibility analysis of each building surface is conducted from the perspective of simulated pedestrians at street-level, based on line-of-sight. This is followed by an assessment of the solar energy harvesting potential based on simulated annual solar irradiation values on the various building surfaces. Lastly, the visibility assessment is overlaid on the 3D solar irradiation map to identify and visualise the most suitable building surfaces for BIPV applications. In addition, the influence of road-side trees on the feasibility of BIPV has been studied. Depending on the degree of visual impact, different strategies are proposed for the optimum deployment of BIPV, ranging from high-efficiency technologies to aesthetic BIPV and media walls. The proposed methodology could evolve as a standard tool for the decisionmaking process in high-density urban environments and thus further assist in promoting the large-scale adoption of BIPV.
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