Showing posts with label solar power. Show all posts
Showing posts with label solar power. Show all posts

Thursday, August 23, 2007

Israeli scientist captures power of 1000 suns in Negev Desert



First Israelis made the desert bloom; now it's time for that blistering desert sun to run the power grid. A cutting-edge scientist in Israel's Negev Desert has tapped into the sun's energy in a new way. Professor David Faiman's solar power breakthrough magnifies the sun by a factor of a thousand, so it can yield an incredible 4,500 watts per square foot.

Professor Faiman, head of the National Center for Solar Energy in the Negev desert, has invented a super-reflector. According to his calculations, using just a dozen square kilometers in Israel’s Negev desert he could supply enough electric power for a million people, roughly one sixth of Israel's population.


Professor Faiman explained: “The achievement is that we separate out the collection function of a photovoltaic cell to the light conversion to electricity function. When we collect the light, instead of using a huge area of solar cells, we use an equal area of cheap glass mirrors and they are curved in such a way as to concentrate the light onto a very small solar cell, the size of just one cell, and in this way you concentrate the light a thousand times and you can get a thousand times more power out of a small cell”.