CUSUM quality control chart for monitoring energy use performance

This paper builds on measuring and evaluating energy use performance of a process using statistical process control charts. This paper discusses the application of the latest SPC tool named cumulative SUM of difference (CUSUM) to monitor energy use data so that abnormal changes can be detected in a timely manner. The application case study to highlight the benefits of CUSUM charts for monitoring energy use performance is presented and performance of these charts is compared to the traditional control chart.