 The most common needs are lighting, cooking energy, domestic heating or cooling.There is little information available on specific measure on the basic energy requirement, but many countries have identified that provision of 1 unit of electricity per day per household as a basic energy requirement., thus it is seen that in many developing countries the 30 units of electricity per month category is provided at a very concessionary rate.Other authors consider different categories of energy needs from "fundamental energy needs" associated to human survival and extremely poor situations.