A new model of Colorado's energy mix shows consumers could save $250 million annually over a 10-year span if the state were to replace its coal plants with a mix of wind and solar, backed up by energy storage and natural gas.The report, commissioned by clean energy developer Community Energy and completed by Vibrant Clean Energy, also estimates the new resources would cut Colorado's state-wide annual carbon emissions from power generation by almost two-thirds.The analysis adds to a growing body of data showing Colorado consumers would save money by making a rapid shift away from coal, and echoes recent findings in other states.