My building has an extensive and expensive Building Automation System (BAS), why can’t I use it to comply with GM V4.1 or ENRB V.3?

The majority of BAS in the market address issues of comfort, safety, convenience, manpower savings, etc. However, they do not specifically target accurate measurements to attain long-term chiller plant efficiency within ±5% at the moment. Moreover, the existing BAS may not have the excess capacity to add I/O points for measurements and the capability to use the meter’s data output protocol. In hot and humid climates such as Singapore, the majority of commercial buildings have cooling needs year-round, and the cooling system of a building can sometimes account for 30% to 50% of the total energy usage. Hence, it is necessary to install accurate M&V instrumentation to ensure that chiller plants operate efficiently over its life cycle.