I just realised what the fundamental problem with renewable energy is: it is free and there is a limitless supply of it.
Our current economic model is based on profits from scarcity. If no one can make (big) renewable bucks from renewable energy, no business-as-usual will take it seriously. And if no business will take it seriously, it is unlikely governments will take it seriously.
Oh dear…
I suppose if you are a profit-driven investor, you would want to invest in nuclear power. Nuclear power has scarcity written all over it as uranium is a finite resource, just like petroleum. And when uranium starts running out just like petrol is now...
(From a recent conversation with Jeff Cahill)