Analysing Energy Usage in Building

  Domestic and commercial buildings together account for the highest energy consumption sector, summing up to 40% of total energy consumption. With the rise of energy cost and new greenhouse gases emission regulations and policies, these consumers are seeking out to reduce their energy consumption. Large consumers are conducting energy audit to benchmark their energy usage and efficiency in order to accurately address a proper energy plan and regulation. Chart on the right represent energy usage in typical building. As HVAC and lighting represent the 2 biggest power hog, addressing proper energy regulation and energy audit will help building save more energy.

Building Management System

  In order for building to monitor and regulate its subsystems, a sophisticated BMS would have to be implemented. Common BMS often consists of 4 main functions as shown in figure on the left. Whilst functions on the left side of the figure, which deal with data input and analysis, can be non-intrusive, i.e. does not need any modification on the existing system, functions on the right side, which deal with the actual control, unfortunately, are often intrusive and requires certain modification on the existing framework. Hence, the device will focus on Monitoring and Reporting systems.