Energy is needed because: 1. The economic development of any country relies on the energy resources it has. 2. All sectors of the economy-primary, secondary and tertiary require energy as inputs. 3. The consumption of energy resources has been increasing over time as development is increasing. We can conserve energy resources by: 1. Planning should be done for developing a sustainable path of energy usage. 2. Energy conservation should be promoted at group and individual level 3. Renewable energy like solar power must be used more.