Comment by NotAnOtter

Yes, lifecycle analysis is the holy grail.

And I'm not qualified to say the tidal based solutions will never beat out Geo/Solar/Win + Batteries. In my informed but non-professional opinion, it seems like this avenue will never ever work at scale.

From everything I've seen, we have the answer, we're just stuck under the boot of old money oil barons. Solar + wind + geo (depending on the geographic area) for the majority of our power generation. Nuclear + batteries to smooth out the duck curve form the bottom, paired with more aggressive demand pricing & thermal regulations to smooth it out from the top. That's the answer. But lobbyist's going to lobby.