General Electric has unleashed a ton of news about new smart grid tools and partnerships today — just days before the company plans to report its second quarter earnings , which analysts estimate will be down slightly . It’s hardly a coincidence that GE is drawing attention to its Ecomagination line , which includes its energy efficiency and power grid tools. The division has been a bright spot on the company’s balance sheet, although it’ll be tough to meet Ecomagination’s aggressive revenue