ABB (ABBN.Y -1.61%) is spending $1 billion to buy Power-One (NASDAQ: PWER), a major player in solar inverters. This is the latest move by a large energy company to buy into solar following Total (TTE 0.28%) and General Electric (GE 0.71%). Will we see more solar buyouts? Erin Miller sat down with Fool contributor Travis Hoium to find out.