When it comes to solar electricity, efficiency is the key to success. And a new solar electric project in South Africa’s Kalahari Desert may just be the most efficient system that exists in the world today. Swedish energy company, Ripasso, is taking advantage of the intense South African Sun to test its small-scale solar concentrator system that combines military technology with an idea from a 19th century Scottish engineer and clergyman. The results? The system converts a whopping 34 percent of the sun energy into electricity that goes straight into the grid. That’s about twice as much as traditional solar systems.