Human relay on the energy stored and locked neither the fuels to drive our machines and equipments in our house or in any of the industries. All energy is either kinetic or potential. Coal, oil, petroleum, diesel, natural gas are called the fossil fuel energy because they are formed underground one million of years from the fossils remains of plants and animals. Around 90% of all the energies utilized or being utilized comes from fossils fuels, which when burnt gives lot of energy, but release polluting gaseous substances which causes environmental pollution and contributes to global warming. The energy that is produced without permanently using the earth's limited resources is called renewable energy. These renewable resources are pollution free as they harness the energy. Thus utility can be referred to the services of production, storage and transmission of gas energy, water energy, electrical energy used up. Due to the increase in the population the earth's fossil's fuel resources are gradually used up and people will have to rely much on the renewable energy resources. These energies and utilities play an important role in routine activities of human kind and henceforth have to be used carefully and save them for future activities.