The Matenggeng Pumped Storage (MPS) plant will be the second pumped storage project in Indonesia after the Upper Cisokan Pumped Storage (UCPS) power plant with an expected total generating capacity of 943 MW; and is located in Cijolang River Basin (a tributary to Citanduy River) in West Java; about 300 km southeast of Jakarta. During off-peak hours; the MPS plant will use electric energy from the grid to pump stored water from the lower reservoir to the upper reservoir. During peak hours; the Project will generate electric energy; to cover the peak demand in the Java-Bali grid system; by conveying the stored water in the upper reservoir to the lower reservoir through hydraulic turbines. The generated power will be evacuated by double circuit 500 kV transmission lines connecting to the existing 500kV transmission grid. The objective of this assignment is to evaluate the economics of pumped storage hydropower (PSH) developments in Indonesia and the MPS plant; alongside the regulatory and institutional framework as well as market conditions; which is necessary to build an enabling environment for the PSH development. The assignment should consider alternative business PSH scheme; particularly those that could be used to stimulate the development the MPS project. Particular emphasis will be placed on practical outcomes for economic value and financing approaches for developing PSH in Indonesia.