IBM solar collector will concentrate the power of 2,000 suns, keep its cool

Modern solar collectors can concentrate only so much energy for safety's sake: too much in one place and they risk cooking themselves. An IBM-led group is working on a new collector dish that could avoid that damage while taking a big step forward in solar power efficiency. The hundreds of photovoltaic chips gathering energy at the center will be cooled by the same sort of microchannel water cooling that kept Aquasar from frying, letting each chip safely concentrate 2,000 times the solar energy ...