Estimating Technical Energy Saving Potential from Improved Appliance Efficiency in Indian Households

摘要

Energy efficiency is attracting greater attention in India, and because of the urgency tornreduce energy use rapidly and with limited resources, energy efficiency (EE) efforts need to berntargeted to achieve the largest reduction. The first step in such targeting is an assessment of thernpotential savings from various EE measures.rnWe assess the technical saving potential assuming all new purchases of appliances inrnIndian households for a five year period (2009-13) are of the most efficient models available inrnthe Indian market. We use a diverse set of data sources – national sample surveys for appliancernownership, manufacturers associations data for production and growth projections, and samplernenergy consumption studies.rnOur calculations show that replacing incandescent bulbs with CFLs and tube-lights withrnEE models and shifting to the most energy efficient models for all other appliances for all futurernsales can result in annual savings of about 57 TWh in 2013 which is a reduction of about 30%rnfrom a BAU scenario. Retrofitting of lights accounts for about half the saving while ceilingrnfans, TVs, refrigerators, and reduction in stand-by power account for another 40% of the savingsrnin households. Selecting a longer time period for the study and including new developments inrnEE could increase the estimate significantly.rnNot all this technical potential is achievable. Further work is needed to determine therncost-effective (economic) potential and achievable potential from the estimate of technicalrnpotential.