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balcony collector module

Tokyo Gas launches balcony-integrated Collector

Submitted by Baerbel Epp on June 24, 2009

solar system of Tokyo Gas ” Japan´s large natural gas company, Tokyo Gas, started producing a collector panel that can be integrated into balconies. The low-cost system is a combination of solar panels and a gas water heater. Photo: Tokyo Gas

Fair Season in China: Three Major Trends

Submitted by Baerbel Epp on March 9, 2009

Different tube technologiesDifferent vacuum tube technologies in comparison: The full-glass vacuum tube can easily be recognised by the extended and closed top.
Photo: Sven Tetzlaff

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