The purpose is not a new one. Previously, during the Seventies, appeared the need to separate growth, indispensable for guaranteeing employment and the level of life increase, with energy consumption. The two oil shocks had destabilized foreign trades and France, at that time, was not protected by the euro against the speculation caused by its external deficit. Energy supply safety had become a priority, which had lead to the choice in favor of nuclear power production. Today, the stakes are the climate but the objective is the same: it is to reduce greenhouse gas emissions coming from energy consumption, and ...