How to Smooth Out Demand Peaks in Your Electricity System

In two thousand and three, over 20 million people sat down to watch england play australia in the rugby wilcup final. In that half time, 800 and forty four thousand kettles were turned on for no dobt an orta lot of cups of tea and coffee. So how do we smooth out those spikes in demand so that we don't have to build enormously big electricity systems, which are expensive to deal with? That's what this week's when the facts change is about.