Northern China has rich wind power and photovoltaic renewable resources. To meet the load demand, heat cogeneration units limit its peak load regulation capacity in winter, to a certain extent, resulting in structural problems of wind-solar power and thermo electric power. To solve those problems, this paper takes a plurality of units together to ensure the supply of heat load as the premise, by building a thermal load dynamic scheduling model of thermoelectric unit group considering power network peak regulation, to achieve the peak regulation potential excavation of different thermoelectric properties units. Simulation examples show, if the unit group exists obvious thermoelectric relationship individual differences, the thermal load dynamic scheduling can improve the overall peak regulation performance of unit group more significantly, and increase solar wind power consumption effectively.