Business Green: Google’s growing interest in the energy sector was underlined this week when it emerged that a new subsidiary of the company has lodged a request with the Federal Energy Regulatory Commission (FERC) that it be allowed to buy and sell electricity on the wholesale market. The search giant created a Delaware-based company called Google Energy back on December 16 last year, and the Federal Register revealed earlier this week that the firm had been named in a formal request to FERC, the …