1. ENERGY SCENARIO
: Commercial and Non-Commercial Energy, Primary EnergyResources, Commercial Energy Production, Final Energy Consumption, Energy Needs of Growing Economy, Long Term Energy Scenario, Energy Pricing, Energy Sector Reforms,Energy and Environment: Air Pollution, Climate Change, Energy Security, EnergyConservation and its Importance, Energy Strategy for the Future, Energy ConservationAct-2001 and its Features.
Energy is one of the major inputs for the economic development of any country. In the case of the developing countries, the energy sector assumes a critical importance in view of the ever-increasing energy needs requiring huge investments to meet them.Energy can be classified into several types based on the following criteria:
Primary and Secondary energy
Commercial and Non commercial energy
Renewable and Non-Renewable energy
1.2 Primary and Secondary Energy
Primary energy sources arethose that are either found orstored in nature. Commonprimary energy sources arecoal, oil, natural gas, andbiomass (such as wood). Otherprimary energy sourcesavailable include nuclearenergy from radioactivesubstances, thermal energystored in earth’s interior, andpotential energy due to earth’sgravity. The major primary andsecondary energy sources areshown in Figure 1.1Primary energy sources aremostly converted in industrialutilities into
sources; for example coal, oilor gas converted into steamand electricity.
Figure 1.1 Major Primary and Secondary Sources
ElectricityNuclearNatural gasPetroleumHydroNatural gas
Bureau of Energy Efficiency