“Ten years ago we met in Saudi and said ‘someday we’ll be sitting in the middle of the desert talking about renewable energy.’ And here we are.” The speaker was an academic at Sydney’s University of New South Wales, and we met last week at a vast trade show in Abu Dhabi called the World Future Energy Summit. On display were wind turbines, systems to control homes and electric grids as one integrated entity, equipment to clean solar panels, and the like, in a space as large as a dozen football fields, lit by powerful LED chandeliers fifty feet above.