EMBODIED ENERGY ANALYSIS, LIFE CYCLE ENERGY ASSESSMENT AND FINANCIAL STUDY OF INSTITUTIONAL KVIC BIOGAS PLANT MODELSudhir Narayan Kharpude and Deepak Sharma
Due to pressure of meeting energy demands of large population, India is shifting its focus from use of fossil fuels towards renewable-energy applications. Being worldâs second largest biogas programme operator, India is looking at biogas as a mission to fulfil rural energy demands. Although family size biogas plants are achieving its peak; institutional biogas plants are not very popular throughout the country. The initial assessment has examined that institutional biogas plant requires heavy infrastructure with net energy investments along with financial ones. By using multi appraisal methodology, the biogas generation and utilization pathway were observed for various end utilizations. Multiple appraisal methodologies involved determination and prediction of net embodied energy use, life cycle energy utilization and financial investment assessments. The total embodied energy of whole institutional biogas plant unit of three 85 m3 KVIC plants and biogas up gradation setup was found to be 3269.77 GJ with the energy payback period of 2 year 3 months or 818 days. Economic analysis concluded that institutional biogas plant is economically viable and should be adopted. The payback period of institutional biogas plant unit for LPG substitution was found as 5.61 years and for both fertilizer and LPG substitution was 2.09 years. Positive IRR and NPV values indicate beneficial investment in biogas plant. Multi-appraisal technique to observe energetic and economic analysis concluded that institutional biogas plant is viable option and is adaptable in current state-of-art.