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When it comes to irrigation of agricultural lands, the solar water pumps, are one of the best suited technology. Rural areas in the developing countries are majorly dependent on agriculture. The agricultural lands, require water supply in their areas. But, most of the users are not able to access the privileges of electric grid, and hence willing to be more self-dependent & willing to economically tap into a source of power. Even, the engine-driven pumping systems can be an alternative but fuel tends to be highly expensive and unreliable. Not only are the solar water pumping systems are reliable, economical but also benefit the environment benefits such as saving on emission on tons of carbon di oxide. In this thesis, economic indicators such as benefit to cost ratio, net present worth and discounted payback period are evaluated. As, the carbon emission trading is not in India right now, two cases have been considered, one when carbon emissions were monetized and the other case without the carbon emissions. Here the analysis is done in Jalgaon (Maharashtra), for banana crop, on 1650 m2 land .The results are obtained by performing financial analysis or modelling using Microsoft excel. When carbon emissions are considered, the benefit to cost ratio of 3.76, net present worth of Rs. 4, 09,607.26 and DPP of 2.03 years is obtained for 0.5 HP SPWPS; for 3 HP SPWPS, a B/C ratio of 1.38, NPW 0f Rs. 1, 05,927.33 and discounted payback period of 8.33 years is obtained; and for 5 HP solar water pumps B/C ratio less than 1. When carbon emissions are not considered, The benefit to cost ratio of 3.48, NPW of Rs. 3, 67,155.57 and DPP of 2.24 years is obtained for a 0.5 HP pump, benefit to cost ratio of 1.27 NPW Rs. 76,537.70 & DPP of 10.84 years is obtained for 3 HP solar water pump, and for the 5 HP pumps, the B/C ratio is less than 1.
Keywords: Carbon emissions, benefit to cost ratio, discounted payback period, net present worth, solar energy, solar water pumps, financial modeling ,financial analysis Microsoft excel
