Re: The answer is obvious...
Nope, this should be a solved problem, but the Greenies refuse point blank to allow anything other than their current mania. Right now they only want Wind and Solar - everything else is the work of the Devil and Cannot Be Permitted.
The problem is the idiot greenies and BANANAs* who simply aren't interested in solutions, and are intent on shouting down every single attempt at actual solutions because they don't precisely match their fatally flawed preconceptions - flawed because none of them have any idea what "national scale" actually means.
They simply aren't interested in a reasoned discussion of "Here is the problem, what solutions can we afford, how can we move towards the final goal without bankruptcy and death?", they are simply Against. Against what? Well, everything.
The problem of Low-Emissions electricity supply in Europe is relatively easy to solve, if we actually wished to do so. It looks very much like our current mix, just replacing the coal with nuclear. Simples.
Or at least it would be if we'd started building them a few years ago. Now, we're simply utterly screwed.
* Build Absolutely Nothing Anywhere Near Anything
Oh yes, Solar-Electric has no place at all in northern Europe. The Sun doth not shine enough here.