Abstract:
Inthis work the 100kw solar mini – gridinstalled at Sandwip has been studied
thoroughly to analyze the investment. The mini-grid power generations plants include
product model numbers are Grid tie inverter SMC11000TL,Bidirectional Inverter
SI5048,Multi – clusterBox MC-Box 12.3,Sunny Island Charger SIC40,Bat
fuse,Sunny Web Box,Solar modules: Kyocera, Deep cycle solar battery: Hoppecke-
Germany, OPzS3000, 2V, 3000Ah, Generator 40KW.The electrical load is considered
based on the local needs and the electrical load demand is 93.8 kW. The system
supplies 230V ac. The major share of the energy comes from solar while the
contribution of diesel generation is very small. Economic feasibility has been
analyzed with RETScreen version 4, developed by Minister of Natural Resources
Canada was used to evaluate benefits from clean energy production from power
generation projects and savings through energy efficiency projects, accounting for
project costs, emission reductions, and financial risk.Result shows that the project
payback period of 7.4 years, the internal rate of return on equity(19.6%) and internal
rate of return on asset (14.2%) (Life time of 20 years with low maintenace) in
comparison with the local generating electricity, which predicts that the 100 kW solar
mini grid at Sandwip, Chittagong is feasible for Bangladesh. The outcome of this
project adverts that the solar mini grid can be a much better solution to protect our
ambience and ameliorate the life style of the people in far villages who are
underprivileged up until now.
