"the European buffering capacity of the network"
AKA "The very large French nuclear reactor fleet in the country next door (which happens to be France)", which has some load-following ability.
"Renewables" in northern europe have the potential to replace all current carbon emitting sources - if the entire european countryside is carpetted in turbines and glazed with solar panels, at a cost several tens of times higher than the carbon-emitting sources (and the fuel) they replace.
Eliminating OTHER sources of carbon (heating, transportation, industrial processes) will require an increase in electrical generation by a factor of _AT LEAST_ 6 if not more. The only way forward is massive investment into nuclear sources and nuclear research. We _need_ LFTR technology and we need it deployed at least 10 years ago. The ironic thing is that LFTR's inherent ability to load-follow without penalty means that whilst it's an ideal backing source for "renewables" the overall lower cost of operation (an removal of the need to subsidise, as LTFRs are carbon-neutral) means that the deployed renewables fleet would become white elephants overnight.
When you factor in the requirements for increased energy availability in developing countries, the need for nuclear sources is clear. Even in equatorial areas the investment required to ramp up production of "renewable" energy dwarfs the cost of a few nuclear plants (conventional or LFTR) and without low-cost reliable energy, we cannot continue to both pull people out of poverty AND reduce the population (well-off people have fewer kids. Making people better off is the only _proven_ way of curbing population growth. Wars, Famine and Malthus effects have _all_ resulted in population bounces which more than made up the losses within 2 generations.)
Those nuclear plants are likely to be chinese, and the LFTR plants will almost definitely be chinese - they're the biggest player in R&D into making LFTRs viable. It'll be interesting to see how fast chinese industry hoovers up both Thorium and "nuclear waste" to feed their plants in the next 20 years.