The world's most powerful tidal turbine - but can our grid handle it?

https://slrpnk.net/post/12250587

The world's most powerful tidal turbine - but can our grid handle it? - SLRPNK

Does anyone know about the environmental impact of these? I sometimes hear about boat propellers hurting wildlife, so what about these? I’m almost an 11h drive from the nearest coast, so this is not an area of knowledge I am well versed in haha.

The problem with these structures is usually small marine life - they tend to need frequent maintenance to remove barnacles and whatnot.

Having your smooth walls and turbines lined with barnacles tends to impact performance significantly.