We explained the tricky circumstances surrounding the acquisition in late June. Solar City is struggling, which isn't particularly damning in and of itself, but Elon Musk's relationship with the company is troubling. Musk is Solar City's largest shareholder and his first cousin is its CEO. Those facts led one analyst to compare the deal to a bailout. Meanwhile, six of SC's seven board members have direct ties to Tesla.
But while Musk's decision to purchase Solar City raised a furor, it's officially not monopolistic. Score one for Elon.