Foxy had a quick look at the site you referred.
Needs more time than I have right now.
All the "renewables" have some unreliability built in.
Even tidal because their output falls to zero twice a day.
At least is known when. It suffers from the same maintenance problem
as wave systems, ie the ocean is a very hard location for anything.
A number of systems have been built and failed.

Geothermal very good if they can get it working. Corrosion was the
problem with the Sth Aus project.

Alan B's favourite Thorium needs a good try and as far as uranium
is concerned, the Sth Aus Govt has a suggestion;
Dig it up, process it into fuel rods, lease them to o'seas generators
get them back, reprocess them; repeat; repeat; then when depleted
stick them in a hole in the outback. (in a dug out ehausted uraniun mine !)
I have held depleted uranium in my hand, it is harmless.

Dear Bazz,

Thanks for taking a look.

It's all above my head.

But I am convinced that we've got to keep on trying
and hopefully one day we'll come up with solutions
that do work.

Well Trump has done it. Good by Paris Accord.

I dont think so, read this:

http://www.paulcraigroberts.org/2017/06/05/washingtons-empire-not-unraveling/

Yeah, countries all agree to limit their carbon as long as America pays for it.

Maybe they should limit their populations that consume coal in enormous amounts cooking and lighting their abodes.