The north is rich in wind and photovoltaic resources, and the early large-scale wind farms and photovoltaic power stations have curtailment of wind and solar power due to the limited capacity of the power grid, resulting in a waste of resources and equipment. Long-term heating is needed in the north in winter, and the traditional heating uses gas or coal, which has high carbon emissions. The heating system is a large-capacity, large-inertia system, and the output fluctuation of wind power and photovoltaic power generation systems can be eliminated by this large-inertia system, so as to obtain a heating system with almost zero emissions.