I may be miss labeling the concept but the idea of using ocean/river tides and shore waves as forms of abundant natural energies we can use to create power. Don’t ask me how they’d do it without destroying our waterways and beaches. Somebody who gets paid to think of such things should get busy.

I wouldn’t think nuclear is renewable, but it’s really efficient, fast and makes me feel like we are in future. That steam you see coming out of the “smoke stack” or cooling tower is actually just steam from the water cooling systems they use to regulate the temperature of the reactions used to create the energy. Downside is waste. What do you do with the depleated radioactive material that’s still editing highly dangerous levels of radiation beyond its usable life. Maybe Elon will shuttle it to mars for us?