You are a couple of years behind the times when it comes to your knowledge of the cost effectiveness of solar and wind. They are $ for $ competitive with nuclear, and are being rolled out at scale. 8 MW onshore turbines are now pretty normal, larger ones are on the drawing board, and in the offshore wind market there are now 15 MW turbines.

Base load can be provided through carbon neutral sources, such as the burning of rest-mass left over from crop production. Smart control of appliances is another way in which the need for baseload power could be reduced, allowing for increased consumption to co-incide with periods of higher (or even excess) power generation, and high voltage DC has made it cost competitive to route electricity across larger distances than before allowing an excess in windpower from one location to be moved with relatively little loss to places where there is a shortage.

Storage is entirely optional in this scheme, but we already have more and more battery storage coming on-line in the form of the expanding fleet of electric vehicles which can provide a large sink.

Energy consumption correlates to qualify of life because that's the society that we've built. But it need not be so, not every source of pleasure or quality of life needs a combustion engine or a plug.