When should additional separate meters for cooling installations be installed?

The correct answer, which states that additional separate meters for cooling installations should be installed when the load exceeds 20 kW, is based on standard practices that pertain to energy management and monitoring.

In the context of the Estidama Pearl Building Rating System, implementing separate metering for cooling installations is crucial for accurately tracking energy consumption. This level of monitoring allows for effective energy management strategies and helps identify potential areas for energy savings.

When the cooling load exceeds 20 kW, it often signifies a significant energy demand that warrants separate metering to ensure that energy use can be effectively monitored and managed. This level of consumption typically indicates that the cooling systems are essential for the building's operation and that their efficiency can have a substantial impact on overall energy performance.

Separate metering at this threshold helps to fulfill the goals of sustainability and energy efficiency, which are central principles of the Pearl Building Rating System. It aids in compliance with local regulations and promotes accountability in energy use, enhancing the building's performance and sustainability profile.