How do we save energy? By simple living. Other than man, no other animal converts nature into different forms for convenience. The more we convert natural forms into conveniences like furniture, cars, roads etc the more we use energy. Can we learn to use the nature in its pristine form? I saw a video of a keralite who stays in a mud house, does not have an electricity connection. He only uses day light, natural ventilation, no fridge etc. At least we can walk to nearby places, minimise furniture/ clothes and in fact everything. What swami says ceiling on desires then we not only conserve energy we grow our spiritual energy