Some key insights from the article:
Basically, what they did was to look at how much batteries would be needed in a given area to provide constant power supply at least 97% of the time, and the calculate the costs of that solar+battery setup compared to coal and nuclear.
Then get it from the sources that already exist. 97% coverage is a great milestone.
Funny enough lots of people hate that. Lots of people have binary thinking, it’s either 100% coal or 100% solar.