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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.
it's a trade-off. the average generation curve depends on the inclination; each has its pros and cons
Also if one chose to have some tree for natural shading it kind of forbids to have verticals. Shade was more appropriate in our case so there’s a very limited direct sun exposure.