AP: Many western Coloradans are urging state regulators to reject moves to switch from coal to natural gas as the fuel to generate electricity. About 300 people turned out Monday night for a hearing in Grand Junction on a new state law aimed at using natural gas to fuel power plants in efforts to cut power plant emissions. Xcel Energy, the state’s largest producer of electricity, has announced a $1.3 billion plan to convert coal-fired power plants to natural gas in Denver and close a coal …