Solar3D 3-Dimensional Solar Cell Reduces Payback on Solar Power Systems by at Least 40%

http://www.marketwatch.com/story/solar3d-3-dimensional-solar-cell-reduces-payback-on-solar-power-systems-by-at-least-40-2012-03-05?reflink=MW_news_stmp

This new technology is expected to reduce payback time by %40 !