We are all being advised to be aware of the energy that we use within our household. When we are searching for our household appliances we are given their energy efficiency rating so that we can be sure that this issue is on our agenda. Also when we are buying a house, we are given a report that tells us how energy efficient the house is. But what really constitutes a reduction in energy consumption? Surely we must first know how much power an average house uses up, although this in itself is a complicated question.... Full Story

