Abstract
Energy is a basic and essential need for all kind of works in the Universe and its consumption pattern has been increased steeply due to increase in the population and economic growth. The current world energy consumption primarily depends on the fossil fuels such as coal, petroleum fuels and natural gas. The rate of depletion of these conventional fuels is rapid and therefore it is important to investigate the existing types of energy usage, consumption pattern and demand, especially in cities of developing countries for its efficient utilization. The present work is concentrated on the above said aspect in Madurai and Salem, the second and fifth largest and most densely populated cities, respectively in the state of Tamil Nadu, India. We have focused mainly on energy consumers of commercial sectors in these two cities. The energy consumption pattern of the commercial sector is found out through questioner survey and the energy demand is calculated. The variations in energy utilization are assessed by using cluster sampling method and the results are discussed. Since the energy demand and environmental deterioration are in rising trend, it is necessary to establish the energy conservation measures and utilize the renewable energy sources not only to overcome the energy demand but also to safeguard the health and wealth of the people reside in the Madurai and Salem cities.
