Japan's promising trial of an undersea turbine that generates power from deep ocean currents

[Otherbrother]

@blackanvil

I did a bit of digging, there’s some impact, but less than most other forms of energy generation. For one, they’re big enough that most wildlife knows to avoid them, and there are diversion barriers and filters to keep the turbines from getting clogged up with debris, fishing nets, and marine life.

The turbines in this demo appeared to be exposed, unshielded blades, 11m diameter. But this was just a scaled-down demo unit and the real ones would be larger.