A new methodology for quantifying urban building energy use

Authors: Wenliang Li*, University of North Carolina - Greensboro
Topics: Urban Geography, Urban and Regional Planning
Keywords: Urban building energy use, spatiotemporal resolution, calibration
Session Type: Paper
Day: 4/4/2019
Start / End Time: 9:55 AM / 11:35 AM
Room: Taylor, Marriott, Mezzanine Level
Presentation File: No File Uploaded

In response to global climate change issues, many countries have developed plans for reducing energy consumption and carbon emissions. While the targets are often set at the national level, major actions have to be taken at the city scale. In the United States, residential and commercial buildings account for over 40% of total energy use. understanding urban building energy use is important for developing feasible options to mitigate energy use and greenhouse gas emissions. In this study, a new methodology has been developed to quantify urban building energy use by combining building floor area from GIS footprint data, the number of floors in each building from remote sensing derived building height data, building prototypes extracted from the Assessor's parcel data, and energy use intensity for the designed building prototypes from a calibrated building energy use model, EnergyPlus. Specifically, 34 building prototypes were developed to represent buildings in the study area, the EnergyPlus model was calibrated at the monthly level for all building prototypes, and the spatial and temporal variations of building energy use in the study area were captured by the proposed new methodology. Results show that the spatial variation of building energy use in the study area can be captured using the proposed new methodology. With the monthly calibrated model, the temporal pattern of urban building energy use can be well represented.

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