Journal
BUILDING AND ENVIRONMENT
Volume 205, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2021.108235
Keywords
Building energy modelling; Urban climate; Built environment; Energy mapping; Geographic information system (GIS)
Funding
- Seed Funding for Strategic Interdis-ciplinary Research Scheme [102009942]
- Univer-sity of Hong Kong
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This paper reviews and compares major methods for simulating building energy use at the urban scale, highlighting differences in strengths, limitations, and applications. It suggests that future development in urban-scale building energy use should explore ways to incorporate spatial variation in weather and morphological conditions, especially in dense urban settings facing greater environmental challenges.
While more and more cities are planning towards sustainable development and climate resilience, a thorough understanding of the spatiotemporal pattern of building energy demand can be valuable for evidence-based city design and climate change mitigation. Energy demand in buildings is heavily influenced by its surrounding built and climatic environment. This requires simulation that is sensitive to the heterogeneity of buildings and climatic complications in dense urban settings. This paper provides a comprehensive review that documents and cross compares the major methods to simulate building energy use at urban scale. The reviewed literature were acquired by using the search strings urban-scale, city-scale or large-scale, building energy, energy use, electricity use, energy consumption or thermal load and simulation, forecast, modelling or mapping in the Web of Science database from 2010 to 2021. The result highlighted major differences in strengths, limitations and field of application of different methods based on modelling inputs, outputs and approaches to incorporate urban environment to the modelling. It also identified that future development of urban-scale building energy use should explore more ways to incorporate the spatial variation in weather and morphological conditions, especially in dense urban settings that experience greater environmental challenges.
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