China’s Nanotech Wave Generators Are Claiming Over 100% Efficiency.

Great headline, but Physics would like a word outside.

SCIENCE AND TECHNOLOGY

9/1/20252 min read

hole center of twirl water
hole center of twirl water

China has unveiled a new class of wave energy devices powered by nanotechnology, and if you believe the headlines, they’re so efficient they make the laws of thermodynamics look optional. Reports boast of 117% efficiency, which, if true, means we can all unplug our kettles and let Poseidon handle the grid.

Of course, reality is less miraculous. The tech in question revolves around triboelectric nanogenerators (TENGs), tiny devices that harvest energy from friction and movement, basically static electricity’s more employable cousin. Think of rubbing a balloon on your jumper, except instead of a bad hair day you’re charging coastal sensors.

The “over 100%” claim? It’s not perpetual motion, it’s a maths trick. Under specific lab conditions, researchers managed to extract more power than their model predicted. That’s not breaking physics; it’s beating expectations. Imagine buying trousers labelled “fits up to 34 inches” and realising they still button at 36. Impressive, but hardly sorcery.

That said, the progress is real. New designs, chaotic pendulums, roller-based setups, and multi-layer circuits, are pushing wave energy capture closer to useful scale. China’s floating “Nankun” station already delivers about 24,000 kWh per day, enough to power 3,500 homes without anyone having to pretend physics is negotiable.

Wave energy is notoriously messy to harvest, but advances in nanotech mean small-scale deployments, like ocean sensors, buoys, or coastal grids, are getting viable. If scaled, wave power could contribute around 10% of China’s energy needs, which is not infinite free energy, but it’s still more useful than static on a jumper.

So no, we haven’t cracked perpetual motion. Your electricity bill is safe from fairy-tale miracles for now. But TENG tech is chipping away at the problem of harnessing the ocean’s chaos in a way that could actually matter. The seas won’t power the world yet, but if you’re a buoy bobbing in the South China Sea, your future just got a lot brighter.

Final thought: Whenever you see “above 100% efficiency” in a headline, read it the same way you’d read “low-fat sausage roll.” It’s not lying, but it’s not quite what you think either.