One key to harvesting the ocean’s clean energy—at least a little of it—may lie in static electricity. A team of researchers in Portugal has now successfully used it to run small generators inside a navigational buoy, powering the sensors and lights that the buoy uses to collect data and aid sailors. Though the project’s scale is small so far, the researchers say it is an important proof of concept for a technique that could supplement existing attempts to harness the power of waves, as well as other kinds of naturally occurring motion.
