Sustainability means “meeting the needs of the present without compromising the ability of future generations to meet their own needs" and Energy resources with less environmental impact are popularly known as clear or green energy. The business dimension of sustainability covers economic development, efficient use of energy, and security which ensures that each country has constant access to sufficient energy. Energy efficiency means using less energy to achieve the same production goals. Renewable energy sources are essential to sustainable energy, as they generally strengthen energy security and emit far fewer greenhouse gases than fossil fuels.