What is Quality of Supply

Industries can experience loss of productivity and equipment damage due to poor quality of power supply and unintended or unexpected service interruptions. Several factors such as unreliable power supply contribute to the poor service quality and revenue losses to the utilities. It is desirable that service interruptions are carefully recorded, from which the reliability indices are determined. These indices provide a good indication of the capacity of the utility in engaging and serving the customers. This chapter presents various reliability indices and explains their importance in engaging the customers through providing reliable power supply. A novel framework for reporting the reliability indices is suggested. Further, this chapter illustrates how this suggested framework can be applied to a typical energy supply industry (ESI) to improve overall revenues to the utilities and to provide high quality of power supply and service to the customers.