A Comparative Study to Benchmark Energy Performance Using Building Simulation Tools

Building performance assessment is a process of using a numerical model “simulation tool” to predict performance of both the building and system metrics. The decision to choose a suitable simulation tool is a continuous challenge. Issues such as model data availability, integrity and applicability add additional constraints to the modelling process. This paper discusses the process of using different building simulation tools to identify a credible building energy performance indicator. A typical building is modeled using different tools utilizing similar input data and weather conditions. A series of building performance experiments are conducted and the resulting trends are compared to real-time metered data. The paper presents a pilot project to create an energy benchmarking tool for facility managers and the challenges facing the development team.