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The latest ideas and inspiration from around the world
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Power to change our planet may soon be as close as your own two feet. PaveGen produces pavers that use the energy of footsteps to generate electricity. Good for high traffic areas, the pavers took a step toward a more sustainable world as part of an installation near London’s Olympic Village. Learn more at pavegen.com.

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As the components of solar collectors get smaller, ideas about how to apply them grow. Notre Dame scientist Matthew Genovese and colleagues recently developed a liquid suspension of sunlight-capturing nanoparticles that can be applied to a surface to create a thin layer that transforms energy from the sun into electricity. Called “Sunbelievable,” the coating still needs perfecting to become practical, with efficiencies in the range of 1 percent. But the proof of concept takes the idea of painting the town with solar closer to reality.

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