The key characteristics of an energy management system must be monitored and measured. These key characteristics include:
In setting up monitoring and measurement system, the organization should answer the following questions:
Monitoring and measurement doesn’t automatically imply energy metering. It is not necessary to install energy meters on all machinery, equipment or on a complete production line.
Examples of energy instruments to be monitored can include:
In order to determine the cost-effectiveness of metering the cost should be weighed against the estimated energy cost savings. Metering costs include costs of: design, purchase, installation, operation and maintenance and calibration of the meters, data storage and analysis of the data Alternative ways to monitor and measure energy use, instead of permanent metering, are instant metering with hand held meters output.