Cost Optimization of Hybrid Microgrid using Solar PV, Fuel Cell and Diesel Generator in HOMER

Abstract

DC microgrids comprising of hybrid distributed generation is a welcoming trend in renewable systems based power generation. It is also considered as a viable solution to provide electricity to the rural areas in underdeveloped countries. Distributed generation is beneficial because it reduces the transmission losses, has less environmental hazards, and is comparatively cheaper when renewables are employed. In this paper, a hybrid microgrid is proposed for the irrigation system in Gujranwala. The system is designed in Hybrid optimization of Multiple Energy Resources (HOMER). The solar resource data is obtained from National Solar Radiation Database. The different sources considered in this case include solar photovoltaic (PV), hydrogen gas based fuel cell, and diesel generator. An optimization analysis is performed and a comparative study is completed in HOMER based on the sensitivity variables chosen. The various design configurations are evaluated and the optimal design is chosen based on load demand, available resources, and the cost of energy.