New tools for harvesting wind energy may soon look less like giant windmills and more like tiny leafless trees. A project at The Ohio State University is testing whether high-tech objects that look a bit like artificial trees can generate renewable power when they are shaken by the wind – or by the sway of a tall building, traffic on a bridge or even seismic activity.
Tree-like structures made with electromechanical materials can convert random forces – such as winds or footfalls on a bridge – into strong structural vibrations that are ideal for generating electricity. The technology may prove most valuable when applied on a small scale, in situations where other renewable energy sources such as solar are not an option...
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