Thin-Film Solar

It's started appearing at last. Can't wait to see it at Maplins and the Natural Collection. "Thin-film solar technologies often use non-silicon semiconductor materials including copper, indium, gallium and selenium (CIGS) to create photovoltaic cells that convert sunlight into electricity. Without the expensive and often sparse silicon, the cells are cheaper in terms of materials costs. The non-silicon materials can also be printed on flexible or light substances, which can create new applications for solar. But thin films, aren’t yet as efficient as silicon-based solar, and can remain pricey due to their high production costs."
FAQ: Thin-Film Solar � Earth2Tech: