National Geographic: Breathtaking desert expanses of panels and mirrors mark solar energy's growth, but renewables' next wave won't be confined to dusty no-man's-land. As researchers find new ways to make solar smaller, see-through, and sticky, virtually any surface under the sun is fair game for clean power.
Solar photovoltaic capacity is already expanding widely and expected to more than triple in the next 10 years, according to a recent report. (See surprising countries where wind and solar are booming.) Here are...