At present, the promotion rate of waste heat retrofit technologies in China remains relatively low. According to the statistics in the National Recommended Catalogue of Industrial Energy - saving Technologies and Equipment in 2024, the utilization rate of recovered waste heat in the domestic market is less than 20%, while in Europe and the United States, it reaches 50%. There is significant room for improvement in the proportion of waste heat resource utilization. Waste heat resources are mainly distributed in high - energy - consuming industries such as iron and steel, chemical engineering, and power generation. With the proposal of the goals of "carbon peak" and "carbon neutrality", the goal of "dual control of energy consumption" has become increasingly important. Currently, except for the urgent need for low - pressure - driven heat pump technology in power plants (with a utilization rate of less than 5%), the remaining utilization rate is around 70% for other applications, indicating huge potential for improvement.