The energy low-carbon revolution has promoted the transformation of energy structure, and the proportion of renewable energy has been continuously improved. The power operation regulation mechanism is facing severe challenges, and a large amount of electric heating load on the load side can be added to the regulation resources. In this paper, the unit electric heating load is firstly established and the model parameters are analyzed. The clustering group control method is used to realize the heterogeneous electric heating load aggregation, and the electric heating load group model is established. Secondly, it analyzes the principle that the electric heating load group provides standby, and establishes a standby optimization model based on the wind power prediction error interval. Finally, the effectiveness and economy of the method are simulated based on the measured data.