Business Green: BrightSource Energy yesterday broke ground on its flagship Ivanpah solar thermal power plant in the Mojave Desert, predicting that the facility will become the world’s largest solar farm. Speaking at the ground-breaking ceremony, Californian governor Arnold Schwarzenegger hailed the project as further evidence of the state’s position as one of the world’s leading developers of clean technology. “Projects like this one are helping us meet our long-term energy and environmental goals, while creating…