Maybe someday each Home will have its own mini system that will compensate for the problems you mentioned in this video.  Small wind turbines, solar panels, batteries, generators of some sort, etc or things that haven’t been invented yet. Also, if geothermal energy is available to operate the massive turbines that helps to solve the problems at least in part and it’s the only renewable resource that tends to not fluctuate the way wind and solar do. As new battery technology comes online we may all have a bank of batteries in our home that electricity passes through.