By Bret Kenwell Solar stocks like Enphase Energy and First Solar are getting hit hard. Here’s how to trade them from here. Solar stocks have been some of the best stocks to own this summer, with names like First Solar (FSLR) – Get First Solar Inc. Report and Enphase Energy (ENPH) – Get Enphase Energy Inc. Report leading the charge higher. These stocks rallied more than 140% from the May low to the recent high and helped power the Invesco Solar ETF (TAN) – Get Invesco Solar ETF Report higher. These two stocks are the largest holdings in the ETF, with a combined weighting of more than 22%. While…