Much noise has been generated by MidAmerican’s purchase of First Solar’s $2 billion Topaz solar energy project. Yes, MidAmerican is Berkshire’s utility/ energy subsidiary and this sizable acquisition has certainly been cleared by Warren Buffett. That does not mean that “Buffett is buying/ betting on solar” as a category or that the industry should be seen as having “turned the proverbial corner” on its troubles. It is what it is: Berkshire taking advantage of an opportunity. If there are more like it, the company has the firepower – both financial and intellectual – to execute on them.