why cant they do that with the tide?
Its been an idea that's been around for a while (at least 30 or so years could not find a date on the link article below).
Problems, just like wind, damage to wildlife. Slow down the tide so they don't happen any more, etc, etc.
Funny thing is, we can generate all the energy we need today and maybe for the next 100 years using nuclear. First fission and then fusion.
Fusion is the best, less waste and we will need fusion or fission, for space travel. Using chemicals to get to Mars means you have to have chemicals to get back... Lots of chemicals.
https://www.nationalgeographic.org/encyclopedia/tidal-energy/