It sounds like they're just comparing total power required by the countries with the power produced on average by the reliable grids. But you can't manage a gr

It sounds like they're just comparing total power required by the countries with the power produced on average by the reliable grids. But you can't manage a grid like that and not get brownouts. You need to account for two numbers in your planning for capacity... the average use and the projected peak use. If you don't have the overhead capacity to cover the peaks, then you get brownouts and outages that can negatively affect the entire grid... and not just the percentage of people that the grid can't supply. On top of that, even if you assume storage technologies get you to 90% of needs covered, that last 10% is a heavily necessary pain in the ass. Without certain industries having the power they need, none of the technologies that make all the renewable power possible can build products. Not to mention all the consumer goods that would be impacted by not having those industries powered.