I’m not saying “don’t do it” but at this stage most of these products are borrocks.
Few, if any will repays their investement in either cash or embedded energy before they reach the end of their working life.
tidal power has been around for some time, as oldguy said, the problem is making it profitable.
Also, I wonder how the residents react to that fecking huge thing in the middle of their ocean view. You thought wind farms were ugly…