Application Status and Innovative Economic Analysis of Electric Heating Technologies in Northeastern Cold Regions

In response to the demand for clean heating in the cold and high-altitude areas of Northeast China during winter, this article, based on the empirical data of the electric heating demonstration project in Jilin Province, conducts an economic and technical analysis of mainstream technologies such as heat storage electric boilers, air source heat pump coupling systems, and graphene electric geothermal heating. Research shows that the heat storage electric boiler has the lowest operating cost (0.18 yuan /kW·h) under the time-of-use electricity price policy, and the thermal efficiency reaches 96% through the innovation of phase change materials. The solar-electricity interconnection system in rural areas can reduce heating costs to 1,382 yuan per household per year, with an energy-saving rate of over 40%. Flexible load aggregation participating in the ancillary service market can further reduce electricity costs by 23%. Innovatively proposed the "tripartite collaboration" market-oriented mechanism, providing technical paths and policy suggestions for the promotion of clean heating in Northeast China.