Due to the intermittent and anti-peaking nature of wind power， a generation scheduling aimed at minimizing wind power curtailment may cause thermal units significantly deviating from their optimal economic operating area， which will increase the coal consumption in the power systems. By combining the policies about renewable resources generation and the basic aim or criterion of energy saving generation dispatch， an optimal dispatching model is built corresponding to two wind power dispatching modes， i.e.， minimizing the wind power shedding or minimizing the coal consumption， respectively. Economic evaluation indices of wind power dispatching modes are proposed， including the rate of wind power utilization， the value of per megawatt available wind power， energy consumption and peaking capacity. Finally， the two dispatching modes are analyzed and compared under different levels of wind power in the power grid in a ten-unit test system. The results indicate that the wind power dispatching mode based on minimization of energy consumption is more economical than that of minimizing wind power curtailment.