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Pavegen Systems is a technology company that has developed paving slabs to convert energy from people's footsteps into electrical power. A typical tile is made of recycled polymer, with the top surface made from recycled truck tires. Power is generated when a footfall compresses the slab by about . The exact technology is a secret, but PaveGen officials have said it involves the piezoelectric effect and induction by copper coils and magnets. Pavegen says each footfall generates up to 7 watts at 12 volts DC,〔(【引用サイトリンク】url=http://www.pavegen.com/ )〕 enough to run an LED street lamp for 30 seconds.〔 The technology was developed by Pavegen CEO Laurence Kemball-Cook. Among other installations, the slabs have been laid at London's West Ham Underground station for the 2012 Olympic Games. In April 2013, a demonstration installation harvested energy from the runners in the Paris Marathon. PaveGen has also put these tiles on a public soccer field in Rio de Janeiro to allow play after sunset and spark an interest for science. A study of a central building at Macquarie University in Sydney, Australia, suggested that if pavers covered the 3.1% of the floor that sees the most foot traffic, it would generate an estimated 1.1 megawatt-hour per year, about 0.5% of the building's energy needs. == See also == * Energy harvesting * Kinetic energy * Renewable energy 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「PaveGen」の詳細全文を読む スポンサード リンク
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