Performance monitoring
Regular analysis of performance will reveal unexpected adverse changes, allowing the causes to be diagnosed and cured. This helps the energy user to avoid unexpected excess consumption and the avoidable costs it entails. Three ingredients are essential: Externally-derived targets and specifications can also be used to set performance standards. However, an 'aggressive but achievable' target, set on the basis of the system's own best past performance, is usually more credible and will sometimes be more stringent. Note that the information collected in this process has an important secondary use in support of site surveys and audits, which are far more productive if site performance characteristics (and anomalies) are known prior to visits.
Elements of the utility management process
Top-level objectives