solar dots

April 6, 2012
By Beverly Schaeffer

Solar energy is now being taken to a whole new level-but it's a smaller level this time, not a bigger one. A solar cell no larger than the dot over the letter "i" is breaking records by setting new standards for efficiency. Particularly in hot, dry regions, this solar-provided power could be much less expensive, making solar energy more competitive with conventional energy sources. In this issue of SIGNAL Magazine, which features a focus area on energy technologies, Technology Editor George I.