The frequency of German power demand over the course of 2012. We see that demand peaks just below 75 GW but is generally below 70 GW. At the other end, it seldom drops below 30 GW and is generally above 40 GW. Around 88 percent of the time, German power plants thus have to serve demand ranging from 40-70 GW. But the Network Agency does not provide us with this information; the chart is from French energy expert Bernard Chabot.