I think the IEA chart looks into where the energy began, not what it was used for. The 50% number rings true to me, at least for the heating in cold winters. As for summers, cooling is a heat issue as well, so that's where much of the energy is spent.
Tobberone
Which has yet to be realised. Of it is that fast and easy to set up I'm we will see loads of them going up in notime. Specially now in the US, given how the mindset of the current administration.
Not to mention China which invests heavily in anything able to produce a watt.
Nothing to hinder advancing nuclear in the world's 2 biggest economies! Problem solved.
Oh, by all means. Build nuclear to your heart's delight, but in the meantime we need to build wind, solar and water as well.
The part that annoys me the most are the ones that think that it is either or. It's not. It's as much as possible as fast as possible to replace as much fossil in total volume as possible.
Or we skip to the obvious conclusion:
Tio little, too late.
It will take too long to implement and will not solve the energy need when it is done. And it will cost more than anyone wants to pay.
Pushing nuclear, is just a strategy to obfuscate the discussion and prolong the life of oil infrastructure.
I've wanted something like that thumb keyboard since I had my Xperia mini pro in 2010!