A New Zealand company is proposing “to generate electricity with 200 tidal-powered turbines submerged at the entrance to the Kaipara Harbour.” It’ll be enough for 250,000 homes, and the largest project of its kind anywhere.
Power doesn’t get much more renewable than from ocean waves!
I call ‘renewable’ energy “owned power”. The idea is that once you have the turbines in place, the energy flow you get from it is yours, you own it, you get to keep it. I call the other kind of energy “rented power”; an energy flow that requires a cash flow.
I think the transition from rented power to owned power will be turbulent, difficult, expensive and inevitable as the transition from hunting/gathering to agriculture.