Analysis of Energy Conservation Measures using Calibrated Building Energy Simulation Model

Building Energy Modelling (BEM) is a tool used for green certification, code compliance, real-time building control, and utility incentives.Applying energy conservation measures can result in a large reduction in a building's annual energy use.This research aims to investigate how different Energy Conservation Measures (ECMs) affect a commercial building's energy usage.For this eQUEST 3.65, a building energy modelling and simulation tool is used for estimating energy use.The BES model on eQUEST was calibrated using electricity bills to provide reliable results and simulated forecasts that are similar to real-world energy use.The model was calibrated by calculating three statistical indices:The ASHRAE guideline 14 limits are contrasted with the Mean Bias Error (MBE), the Coefficient of Variation of the RMSE (Cv (RMSE), and the Coefficient of determination (R2).Four different ECMs: adding insulation, employing LED lighting, applying glass coating and combined ECM were identified after analysing the end-use energy consumption.It was found therefrom that application of the above measures resulted in 0.6 %, 8.5 %, 13.6%, and 26.1% savings in the building's annual energy consumption.Thus, the combined ECM strategy proved to be the most beneficial.Energy simulations are thus a valuable tool for achieving the overall sustainability of buildings.