The Kurilpa Bridge crossing the river into Brisbane, Australia is expected to carry around 36,000 pedestrians every week. The world's longest solar foot bridge is 1,500 feet long and sports 84 solar panels. The panels produce all the energy the bridge needs for its LED lighting and sends 25% of the power generated back to the city's electrical grid. Link -via Digg
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I wonder how long before the energy kickback adds up to the energy that it took to build the structure and the panels.
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If they put in piëzo-footplates in the deck of the bridge, it could power even the whole Marina of Brisbane....? :-)
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