Proponents of a proposal to locate a massive power transmission line through southern Blaine County faced an avalanche of criticism Tuesday night when they presented the plan to a standing-room-only crowd in the Carey High School gymnasium. Energy giant Northwestern Energy, based in Sioux City, S.D., would like to build a 500-kilovolt line through southwestern Montana and southeastern Idaho ...Another reason new transmission lines are needed is to serve the growing green energy market, Jensen said. "We have got to expand the infrastructure in the country," he said. "There aren't adequate lines going to where the renewables are going to be developed."