This Google owned company could be on the way to mass producing cheap solar collectors. Cheap clean energy is a top priority for humanity right now.
Nanosolar Inc. claims to have broken several barriers to ubiquitous solar energy. Their manufacturing process consists of printing nano-scaled solar-cell layers, bypassing the traditionally expensive vacuum methods yet meeting and in some cases, exceeding industry standards. Major claims include a 3 week payback time and lightweight flexible panels.