This may work for a single house, I don't think it's easy to scale to a whole city or a factory.
I was in my hometown during the holidays, between heavy fog and clouds we didn't see the sun for two weeks straight, not even mentioning almost constant snow
Is that correct?
Have you considered asking an engineer to design a system optimal for German conditions?
BTW - we (Australia) have signed a large contract ($50 billion) with Germany recently to export Australian sunlight to Germany [1] as Ammonia ...
[1] https://reneweconomy.com.au/forrest-strikes-huge-green-hydro...
It's a very localised future, won't work for half of the year in half of the world, the half in which most people are living.
Could you explain again how this doesn't work in half the world?
Is there no wind in Europe, no ability to lay long power lines (like like gas lines lines, only towards the equator rather than Russia), no path upwards past 46% ?
On the face of it you don't seem to be putting much effort into finding a solution past fossil fuel usage .. is that because you don't accept climate change, you don't care what happens when they get increasingly scarce and more expensive, etc?