Cost of Energy Sensitivity Analysis of PV/Diesel with Hydro Pumped Storage for Mentawai Microgrid System

This paper presents the cost of energy sensitivity analysis of PV/Diesel with hydro pumped storage for a microgrid system in a remote community of Mentawai Island to power a load demand of 240.6 kWh/day with a 27.48 kW peak load demand. The effects of different diesel generation fuel cost on the Cost of Energy (CoE) of Mentawai microgrid system is studied. The study also extended to analyse the effects of selection of PV array size on CoE as well as carbon dioxide (CO
2
) emission. The simulation results show that the CoE value of the Mentawai microgrid system for configurations with a renewable fraction of 69.6% with fuel prices less than IDR 12,000/L are below than basic cost of provision generation set by the Ministry of Energy and Mineral Resources (MoEMR), which is IDR 3,041/kWh for the Mentawai Islands. The increase in the size of the PV plant is proportional to the decrease in the CoE of the microgrid system as well as the decrease in the fuel cost demand of the diesel generator.