Giant Cargo Ships to Sail Solar
Last month, China’s biggest shipping company COSCO signed a deal with Solar Sailor of Australia, to fit some of their cargo ships with gigantic rigid sails, each the size of a 747 jet’s wing. The aluminium sails, 30 metres long and covered with photovolatic panels, harness the wind to cut fuel costs by between 20 and 40 per cent, and use the sun to meet five per cent of a ship’s energy needs. A computer automatically angles the sails for maximum wind and solar efficiency, and if all goes to plan the sails will have recovered their initial cost within four years. [via..]
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