Techno-economics of biogas-based water pumping in India: An attempt to internalize CO2 emissions mitigation and other economic benefits

An attempt for the techno-economic evaluation of biogas-based water pumping systems in India has been made in the present work. The potential reduction in the amount of CO2 released in the atmosphere due to the use of the biogas-based water pumping systems has also been taken into account in the estimation of economic benefits. The economic figures of merit such as discounted payback period, net present value, benefit to cost ratio and internal rate of return have been estimated. Results of some exemplifying calculations are presented and briefly discussed.