Accurate energy measurement and analysis is essential for any energy improvement program. Accurate and continuous measurement of sub-systems energy demand and efficiency has been proven to lead to sustainable and highly efficient buildings.
Unfortunately, it is a common practice to only measure power demand (kW) or energy consumption (kWh) of whole buildings.
Therefore, there is a severe lack of skills and knowledge in accurate measurement and analysis of energy demand and efficiency of subsystems such as chiller plant kW/RT, fans W/CMH or lighting W/m2.
Without equipping energy engineers with the skills to accurately measure and analyze energy demand, the industry will be mired with disagreements about energy efficiency claims.