By green energy I assume you are referring to renewable energy.
That great big nuclear furnace that we revolve around is the SOLE source of ALL energy that ever was and ever will on our planet barring a collision with another cosmic mass, in which case it would be the extinction of our species if the mass was of fairly large proportions.
All the energy sourced that you have mentioned as, we our selves, Mandi originate in that nuclear furnace and or ones like it.
Believe it or not, you, or at least your constituent parts, were made inside a star.
You, I and every thing you have ever seen, touched, smelled, tasted and heard, is made of Starstuff down to the last atom EVERY atom.
Every last calorie of energy, regardless of what form it takes, that ever was and ever will be in existence is Starstuff.
Matter IS energy it can not be created or destroyed by ANY means.
The best we can hope to do is transform matter and release some of that energy in a form that we find useful.
I agree that we should use sustainable energy sources but to say that our energy input is being rapidly depleted is nonsense.
Our energy resources will only be depleted when the Sun winks out, that is a VERY long way off.