Influence of Urban Morphology on the Solar Potential of nZEB Building Envelopes
DOI:
https://doi.org/10.46421/entac.v20i1.6318Keywords:
Urban Morphology, H/W Ratio, Nearly Zero Energy Building (NZEB), Building Integrated Photovoltaics (BIPV), Photovoltaic Integrated Shading Devices (PVSD)Abstract
Nearly Zero Energy Buildings (NZEBs) emerge as a promising approach to reduce greenhouse gas emissions caused by the high energy consumption of the building sector. In this context, the generation of photovoltaic energy integrated into the building envelopes presents itself as one of the key strategies to achieve the goals of NZEBs. This study investigates how urban morphology affects solar availability in a hypothetical office building model located at three different latitudes: Belém, Brasília, and Porto Alegre. Through computational simulations and optimization algorithms, urban parameters such as the aspect ratio (ratio of building height to the width of the distance between buildings) were examined to assess the impact of the surroundings on the solar potential of the envelope. The results reveal that the urban configuration, represented by the H/W Ratio, has a significant effect on energy efficiency and solar energy production on façades, showing a strong relationship with the potential to achieve the nZEB goal. Finally, the analysis highlights the importance of urban planning in maximizing local solar energy generation.
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