Harnessing the oceans’ immense power could fulfill all world’s electricity needs. Researchers have come up with a snake-like device built of generators that rely on static electricity to produce power as they float and undulate on the water’s surface. It consists of a spring-like coil inside a cylinder. As the cylinder rolls back and forth on waves, the different parts of the spiral touch and separate, generating current. It might produce 30 times as much power as other triboelectric designs for harvesting wave energy.
Source: Wei Yuan et al. Anaconda-shaped spiral multi-layered triboelectric nanogenerators with ultra-high space efficiency for wave energy harvesting. One Earth, 2022.
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