Netizen

English: Solar panel installation at an information center adjacent to Ögii Lake (Photo credit: Wikipedia)

Cheaper than fossil fuels is that magical line.

Ultra-Efficient Solar

Semprius's solar panels use glass lenses to concentrate incoming light .... using materials other than silicon, the most common semiconductor in solar panels today. ....... a highly efficient material called gallium arsenide ..... maximizes their power production by putting them under glass lenses that concentrate sunlight about 1,100 times. ..... Semprius's small cells produce so little heat that they don't require cooling, which further brings down the cost. ..... make enough solar panels annually to deliver six megawatts of electricity. The company hopes to expand that to 30 megawatts by the end of 2013 .... conventional silicon panels, whose prices fell by more than half in 2011 alone.