CNNP(SH:601985) 中国能源报·2026-03-05 07:14Core Viewpoint - The "Tian Guang Di Re" technology developed by China National Nuclear Corporation (CNNC) has effectively addressed the high costs of clean heating in rural northern China, with 605 clean energy demonstration projects completed [2][3]. Group 1: Technology Overview - "Tian Guang" refers to solar energy, while "Di Re" primarily refers to shallow geothermal energy and surface air energy. This technology efficiently couples both to achieve comprehensive energy utilization and tiered enhancement [2]. - The system operates by using photovoltaic power for heating and harnessing shallow geothermal energy, significantly improving the efficiency and stability of heating systems, especially in northern regions where soil temperatures are notably higher than outdoor air temperatures in winter [2]. Group 2: Performance and Cost Efficiency - The current 3.0 version of the "Tian Guang Di Re" system boasts an energy conversion efficiency exceeding 95%. Its operational costs are approximately 50% lower than natural gas heating and 20% to 40% lower than traditional coal heating, contributing to a green transformation in rural production and living styles [3]. - Demonstration projects have been successfully implemented in regions such as Ningxia, Gansu, and Inner Mongolia, with positive user feedback. The technology is also expanding its application in Hebei, Inner Mongolia, and Jilin, indicating strong promotion prospects [3]. Group 3: Future Development and Support - To further promote the commercial application of this technology, especially in remote and cold areas, it is essential for the government to provide more attention and support in terms of policy, standards, and market mechanisms [4].