When we started working on producing water from atmospheric humidity, myself and my friend and colleague Toufic El Asmar thought it was a mad idea. Energy is expensive and water condensation requires a lot of it. Yet, as we kept working on the concept, we found that it made sense. Sure, it takes energy, but, with the progress of technology, renewable energy is becoming cheaper and cheaper. And at some moments, renewable energy really costs zero. At those moments, you should store it, but storage is the expensive part of renewable power.