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To achieve carbon neutrality (CN) by 2050, it is essential to develop systems that enable detailed and spatially explicit regional analyses, allowing for an accurate understanding of current urban energy consumption. In this study, we aim to develop a system that constructs a wide-area building database by utilizing geospatial information and enables the visualization and utilization of this data through a WebGIS platform. This paper proposes a method for the automatic generation of 3D building models based on GIS data, which are compatible with air-conditioning load calculations, and applies this approach to energy analysis on an urban scale. For the building types of office, accommodation, dedicated store, and detached house, we defined the conditions necessary for the automatic generation of EnergyPlus-compatible 3D models and determined their geometry based on the arrangement of surrounding buildings. By analyzing the heating and cooling loads of each building using the generated 3D models and visualizing the results on a map, our findings suggest that combining a single office building with multiple detached houses may contribute to the leveling of heating and cooling demand.

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Development of an Automated 3D Building Modeling Method and Urban-Scale Analysis of Heating and Cooling Loads

  • 会议论文

  • 发表日期：

    2026年

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  • Hisato Osawa,
  • Taro Mori,
  • Konatsu Suzuki

摘要

To achieve carbon neutrality (CN) by 2050, it is essential to develop systems that enable detailed and spatially explicit regional analyses, allowing for an accurate understanding of current urban energy consumption. In this study, we aim to develop a system that constructs a wide-area building database by utilizing geospatial information and enables the visualization and utilization of this data through a WebGIS platform. This paper proposes a method for the automatic generation of 3D building models based on GIS data, which are compatible with air-conditioning load calculations, and applies this approach to energy analysis on an urban scale. For the building types of office, accommodation, dedicated store, and detached house, we defined the conditions necessary for the automatic generation of EnergyPlus-compatible 3D models and determined their geometry based on the arrangement of surrounding buildings. By analyzing the heating and cooling loads of each building using the generated 3D models and visualizing the results on a map, our findings suggest that combining a single office building with multiple detached houses may contribute to the leveling of heating and cooling demand.