CityBES: A Web-based Platform to Support City-Scale Building Energy Efficiency

author: Tianzhen Hong, Lawrence Berkeley National Laboratory
published: Oct. 25, 2016,   recorded: August 2016,   views: 1059

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Buildings in cities consume 30 to 70% of the cities’ total primary energy. Retrofitting the existing building stock to improve energy efficiency and reduce energy use is a key strategy for cities to reduce green-house-gas emissions and mitigate climate change. Planning and evaluating retrofit strategies for buildings requires a deep understanding of the physical characteristics, operating patterns, and energy use of the building stock. This is a challenge for city managers as data and tools are limited and disparate. This paper introduces a web-based data and computing platform, City Building Energy Saver (CityBES), which focuses on energy modeling and analysis of a city’s building stock to support district or city-scale efficiency programs. CityBES uses an international open data standard, CityGML, to represent and exchange 3D city models. CityBES employs EnergyPlus to simulate building energy use and savings from energy efficient retrofits. CityBES provides a suite of features for urban planners, city energy managers, building owners, utilities, energy consultants and researchers.

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