Background: The form of air pollution in my country is severe. Large quantities of loose coal and fuel consumption are important factors causing air pollution. 80% of my country's PM2.5 pollution problem is related to energy, and more than 70% of greenhouse gases are related to the combustion of fossil fuels. Severe smog is the result of concentrated exposure caused by my country's unreasonable energy development mode and long-term accumulation of structural contradictions. Therefore, the conversion of coal to electricity has become a necessity to solve the smog in my country.  Project description: Intelligent weather sensing multi-energy complementary phase change energy storage heating/heating system adds phase change heat storage modules and intelligent weather sensing modules to traditional solar heating and heating systems. The core of the phase change energy storage module is the phase change heat storage material. The phase change heat storage material has the characteristics of high energy storage density per unit volume and constant temperature for charging and discharging heat, so it can be well used in solar thermal storage and trough electrothermal storage. The intelligent weather sensing control module uses modern network technology and Internet of Things technology to extract weather data from the server to realize the control of the heating and heating system. The server will send weather data for the next day to the intelligent weather sensing control module before 22:00 every night (including temperature, humidity, radiation intensity, sunshine duration, etc.). After reading the weather data, the intelligent control module will conduct comprehensive evaluation and analysis, and then determine the running time of the heating source through intelligent processing. The intelligent weather control module realizes the full and reasonable utilization of solar energy during the day and low electricity at night, which is very important for the energy-saving operation of the system. Combining the increasingly mature phase change energy storage technology and the intelligent control technology of the Internet of Things, this project proposes and designs a multi-energy complementary intelligent weather sensing phase change heat storage system. The system uses solar heat collection modules for large-area connection or a large-capacity single water heater. Integrate large-scale hot water supply systems in a serial-parallel manner to meet the heating/hot water needs of conventional projects. The intelligent phase change energy storage system uses solar energy as the main energy source, air energy used in rainy days as the primary auxiliary energy source, and conventional energy (oil, gas, electricity) as the secondary auxiliary heating system. It can match various clean energy sources while achieving uninterrupted hot water supply throughout the day. The intelligent system has an energy-saving efficiency of more than 60%, with a one-time investment of 2~Ensuring recycling for 4 years is an indispensable hot water engineering technical solution to solve the problem of excessive conventional energy consumption and create an energy-saving life.