42. The Financial Feasibility of a Roof-Top Grid Connected Photovoltaic System in Bangladesh

In this paper, a financial analysis of the estimated cost and benefits of operating a 1.5 kW roof-top grid connected photovoltaic (PV) power system in Dhaka have been studied. The analysis presents result for a typical residual electricity consumer. The financial feasibility has been studied using standard methods of engineering economics such as net present worth (NPW), benefit to cost ratio (BCR) and payback periods (PP) methods. The sensitivity analysis has also been done for a particular case. From the study of the simulation it is found that the use of 1.5 kW roof-top grid connected PV power system will be feasible if the invested money is taken from the government or the local bank at the interest rate of 1% to 3% and per unit module cost is from the Tk 60 to Tk 116. Again the per unit module price is decreased at a rate of 8% from USD 4/WP and per unit electricity price as distributed by Bangladesh Power Development Board (BPDB) is increased at a rate of 5% from the present value of selling, the project will be feasible within August 2009.