Not sure how they arrived that that number as the effective capacity factor of solar is in the 25-28% range in the best of circumstances, so my napkin math of r

Not sure how they arrived that that number as the effective capacity factor of solar is in the 25-28% range in the best of circumstances, so my napkin math of realistic PV density from real projects like Desert Sunlight (the 550 MW plant in the Mojave that covers about 6.5 sq miles) puts that at closer to 101 square miles of equivalent capacity at (.90 capacity factore versus .28, roughly 88 MW per sq mile on a totally flat desert), and that's not counting whatever storage is being used to offset all the non-generating hours.