{"id":18227,"date":"2025-07-25T10:50:24","date_gmt":"2025-07-25T14:50:24","guid":{"rendered":"https:\/\/www.ecoticias.com\/en\/?p=18227"},"modified":"2025-07-25T10:50:24","modified_gmt":"2025-07-25T14:50:24","slug":"goodbye-to-rooftop-turbines","status":"publish","type":"post","link":"https:\/\/www.ecoticias.com\/en\/goodbye-to-rooftop-turbines\/18227\/","title":{"rendered":"Goodbye to rooftop turbines \u2014 Tiny oscillating cylinders promise whisper\u2011quiet power"},"content":{"rendered":"

For decades, we’ve been accustomed to seeing fields and even rooftops adorned with those giant turbines with rotating blades. Symbolic of the energy transition, <\/span>wind turbines<\/b> have spread across several countries, promising a cleaner future. But anyone who’s ever been near one knows: they’re noisy, huge, and not always as environmentally friendly as they seem. Now, a new proposal is emerging that’s unusual, to say the least, and is starting to attract attention. This is because it doesn’t rotate. It has no gears. No noise. No risk to birds.<\/span><\/p>\n

A wind turbine without blades<\/h2>\n

Let’s imagine a stationary cylinder. Basically, a thin tube, fixed to the ground, that doesn’t move like a propeller, but rather sways slightly in the wind, side to side, as if “dancing” in place. Strange, right? Well, it’s precisely this movement, this gentle vibration caused by air eddies, something scientists call Vortex-Induced Vibration, that generates energy.<\/span><\/p>\n

Not through spinning blades, but through a principle called <\/span>aeroelastic resonance<\/b>. The cylinder’s vibration generates mechanical energy, which is then converted into electrical energy. And the most interesting thing is that this small device:<\/span><\/p>\n