Distributed storage based DC micro grid: A reliable PV based solution for rural electrification of Bangladesh

Abstract

This paper proposed a conceptual design and economic analysis of a distributed storage based DC micro grid system for rural area electrification of Bangladesh. In this design we has taken an average load consumption about 34.3kWh including the rural household load and irrigation facility with seasonal load variation. After that we have estimated required specification of DC micro grid components such as solar PV, micro grid charge controller, battery, distribution system etc. Moreover, we have also shown the cost analysis of our proposed micro grid system. Cost analysis estimated about 17.80 BDT/kWh electricity cost with seasonal irrigation facility. It is argued that the developmental activity should be chosen in such a way that it matches with the seasonal variation in insolation and load demand may keep the energy cost to a minimum.