There are already some great tidal energy technologies that can produce clean and, most importantly, reliable energy - like Orbital Marine Power, Nova, and my favourite one because of their shell design and technology that's completely 3D printed and, as I understand it, much cheaper than other technologies - Spiralis Energy (https://www.spiralis.energy). Yet, they all lack investment, and more importantly, tidal energy itself isn't getting the buzz it deserves, even though it could be a really big deal.
Just trying to understand the cons of tidal energy, and why the hell we don't hear more talks about it from climate change advocates, politicians, and "big leaders."?????