Enphase Energy, Inc. (NASDAQ:ENPH) is among the most undervalued solar stocks to buy now. AQR Capital Management LLC expanded its holdings in Enphase Energy, Inc. (NASDAQ:ENPH) by a whopping 9,236.6%, according to the latest disclosure with the SEC. Following the acquisition of 684,157 shares, the firm now owns 0.53% of the company, translating to an investment of $41,483,000. Although Enphase Energy, Inc. (NASDAQ:ENPH) faces risks such as expiring solar tax credits, fierce competition, and market uncerta ...