Pumped-storage capacity discount and its effect on capacity planning

Abstract Pumped-storage plants can play important roles in several aspects, its capacity planning is increasingly of great interest, especially in China. The subject of this paper is an investigation of effect of pumped-storage capacity discount on its capacity planning. The probabilistic formulation and cause analysis of pumped-storage capacity discount are presented. Case studies for a real power system in China are also discussed. The insight gained from these studies will be useful in pumped-storage development planning.