Design and Simulation of an Optimal Mini-Grid Solar-Diesel Hybrid Power Generation System in a Remote Bangladesh

Abstract

To relief the earth from extracting of her all the conventional energy and to keep her safe for our upcoming successor, the focus of power sector must be pointed to the utilization and development of renewable energy technology. As alternative energy sources, wind and solar energies can be used to supplement the conventional energy sources predominantly in remote localities of Bangladesh. This paper presents a feasibility study of renewable resources of Kutubdia, which is an offgrid remote island. Purpose of this paper is to design and simulation of an optimal mini-grid Solar-Diesel hybrid power generation system in a remote Bangladesh to satisfy the electrical energy demands in a reliable manner by HOMER ENERGY software. To ensure uninterrupted power supply due to the remittent nature of renewable resources, a diesel generator is added. This paper analyzes the optimal size of photovoltaic (PV) panel, inverter, rectifier, and battery with a fixed capacity diesel generator, electrical load with a certain random variability, fraction of renewable electricity, excess electricity, net present cost (NPC), annualized cost, fuel summary, performance of its different components, and environmental impacts. Evaluation of results shows that the hybrid energy system can deliver energy in a remote off-grid location with an acceptable cost.