As for the drop, I think because of the small float here there's a lot of day traders on this. Hence the volatility. And I think because it went up so far, so fast, it attracted a lot of people who have been shorting it down for the past month.
Looking ahead, I expect similar volatility when we head back up again. Overall, I think this is headed up long term, like all solar. And the choppy movements along the way will make it nice for longs and day traders alike.