The underwater turbine

Here's some new tech being deployed to try and create green energy from the oceans. 

Conceptually, I like it. I do wonder what impacts it will have on the local ecology and what maintenance will be like (salt water is notoriously corrosive). 

https://www.euronews.com/green/2025/03/18/inside-the-underwater-turbine-farm-set-to-generate-clean-energy-from-frances-tides