PositiveNoise

I watched the video, and it’s pretty impressive so far, though for specific use cases i.e. not in all rivers at all spots, AT ALL. But for Fast moving spots in rivers that have the required depth (which is not a ton of depth), These seem to have a lot of potential for very low impact power harvesting with few drawbacks. They slow down the flow of water a bit but for areas that are somewhat steep that is probably more of a benefit than a drawback. They are clearly way way less impactful than for example building a dam. And so far they seem to be fairly thoughtfully designed to avoid contaminating the area or harming the existing fish and so forth.