Reuters: Google aims to do for the power grid what it did for the Web. Having conquered the market for Web search by first simplifying how it is done and then making sales of related advertising more efficient, Google Inc is now funding green technology and using its brand power to lobby for policy change. Google launched a plan on Wednesday to wean the United States off burning coal and oil for power by 2030, and cut oil use for cars by 40 percent. That will cost trillions of dollars, …