Green power from the Sahara?
Hailed as an energy solution, the Desertec project aims to generate vast amounts of electricity for Europe, north Africa and the Middle East. A hot idea, or a mirage? Leo Hickman reports.
“Over the past two years, the initiative has received significant support from some of the biggest corporate names in Germany, a country that already leads Europe when it comes to adopting and developing renewable energy, particularly solar.” During the summer of 1913, in a field just south of Cairo on the eastern bank of the Nile, an American engineer called Frank Shuman stood before a gathering of Egypt’s colonial elite, including the British consul-general Lord Kitchener, and switched on his new invention. Gallons of water soon spilled from a pump, saturating the soil by his feet. http://www.guardian.co.uk/
Behind him stood row upon row of curved mirrors held aloft on metal cradles, each directed towards the fierce sun overhead. As the sun’s rays hit the mirrors, they were reflected towards a thin glass pipe containing water. The now super-heated water turned to steam, resulting in enough pressure to drive the pumps used to irrigate the surrounding fields where Egypt’s lucrative cotton crop was grown.
It was an invention, claimed Shuman, which could help Egypt become far less reliant on the coal being imported at great expense from Britain’s mines.
“The human race must finally utilise direct sun power or revert to barbarism,” wrote Shuman in a letter toScientific American magazine the following year. But the outbreak of the first world war just a few months later abruptly ended his dream and his solar troughs were soon broken up for scrap, with the metal being used for the war effort. Barbarism, it seemed, had prevailed.
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