Welcome to Steemit. They actually say 20x more power generated. That's a bold claim. Maybe panels are less efficient in constant sun, but only part of this unit is getting full sun at any time. Like any new idea it has to be tested and verified.
Have fun here
Yes and another thing is spinning panel, power to spin is an input, will the output power generated overcome that and produce 20X power? I really don't wanna believe this at this point. And they are mentioning about heat accumulation, I am not so sure but I am having this question on my mind, " How inefficient a solar cell will be due to that reason? Dust accumulation could be a bigger problem than that, I guess.