piegel Online published a series of pictures titled "Desertec: Strom aus der Wüste" (translation: Desertech: Electricity from the desert). It includes this image of how much land would be needed to power the world, Europe or Germany with solar-thermal power. The idea is similar to a post we did a year ago: How Much Land to Power The Whole World with Solar?
The red square on the left is for the whole world, in the middle for Europe-25, and on the right for Germany. Below you can see pictures of the kind of technology they're talking about. It's a bit similar to Ausra's solar-thermal power system, but with curved mirrors. We're mentioning Ausra here, because they claim they're able to produce electricity from solar even at night (by storing some of the heat).
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