Largest solar-powered footbridge in the world

Brisbane now houses the world’s largest solar-powered footbridge, featuring panels that will power its LED lights while feeding the main grid with juice, helping the government Down Under save up to 38 tons of CO2 each year. This bridge is tipped to see around 36,000 people walking/biking over it each week. Would be intereesting if they could incorporate some sort of mechanism to take advantage of all the kinetic energy generated by ordinary people walking across it.