This is the thermo-chemical approach, in which solar energy is captured in the configuration of certain molecules, which can then release the energy on demand to produce usable heat. And unlike conventional solar-thermal systems, which require very effective insulation and even then gradually let the heat leak away, the heat-storing chemicals can remain stable for […]
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Second SA Solar Challenge to start next week
The South African Solar Challenge 2010 kicks off in Pretoria next week. The ten-day race between solar-powered cars travelling more than 4 000 km across the country is scheduled to finish in Pretoria, on October 2. The 2010 event has attracted racing teams from Germany, Japan, Iran and South Africa, including the German School in […]
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200-Fold Boost in Fuel Cell Efficiency Advances ‘Personalized Energy Systems’
The era of personalized energy systems — in which individual homes and small businesses produce their own energy for heating, cooling and powering cars — took another step toward reality as scientists reported discovery of a powerful new catalyst that is a key element in such a system.
