A mix of power sources and some storage can of course solve this problem. The question is whether it is cheaper (or more desirable for other reasons). An infras

A mix of power sources and some storage can of course solve this problem. The question is whether it is cheaper (or more desirable for other reasons). An infrastructure of a couple of HVDC lines that are vital for countries on different continents has very interesting geopolitical consequences for example. Imagine the bargaining power a country has if it can literally turn off the lights during the night in another country. With fossil fuels it is at least easy to store months worth of energy, but still OPEC is quite powerful.