Core Points - The "Liaohe into Jinan" project has successfully completed the northern line, marking the longest and largest heat supply pipeline in China, with a total length of 110 kilometers and a diameter of 1.6 meters [1][3] - The project utilizes waste heat from the Xinyuan Power Plant in Liaocheng to provide clean heating to Jinan, significantly reducing coal consumption and carbon emissions during the heating season [3][5] - The southern line of the project is expected to be completed by the end of the year, bringing the total length of the north-south lines to approximately 150 kilometers, capable of heating 1 million square meters [5] Summary by Sections - **Project Overview**: The "Liaohe into Jinan" project aims to convert waste heat from Liaocheng's power plant into a clean heating source for Jinan, addressing the city's increasing heating demand and energy structure adjustment [3][7] - **Environmental Impact**: The project is projected to reduce coal consumption by 1.2989 million tons and cut carbon dioxide emissions by 3.564 million tons each heating season, equivalent to the carbon sequestration of four Saihanba forests in a year [5] - **Construction Challenges**: The project spans three cities and five counties, passing through 140 natural villages, with significant construction challenges, particularly the southern line's tunnel under the Yellow River, which required overcoming high water pressure and complex geological conditions [5][7] - **Future Developments**: By the end of the year, all 54 coal-fired heating boilers in Jinan's main urban area will be shut down, further enhancing the city's environmental sustainability [7]

Core Viewpoint - The "Liaohotou Jinan" project has successfully completed the northern line, which will provide clean heating to Jinan city using waste heat from a power plant in Liaocheng, marking a significant step in addressing the city's heating demands and environmental concerns [1][4]. Group 1: Project Overview - The "Liaohotou Jinan" project utilizes waste heat from the Xinyuan Power Plant in Liaocheng to supply heating to Jinan, with the northern line now fully connected and undergoing cold testing for the upcoming winter heating season [1]. - The northern line of the project spans 110 kilometers with a pipe diameter of 1.6 meters, making it the longest and largest heat supply pipeline in China [1]. Group 2: Environmental Impact - The combined northern and southern lines of the project, totaling approximately 150 kilometers, are expected to provide heating for 100 million square meters and reduce standard coal consumption by 1.2989 million tons per heating season, leading to a reduction of 3.564 million tons of carbon dioxide emissions [4]. - The environmental benefits are equivalent to the carbon sequestration of four Saihanba forest farms in one year [4]. Group 3: Construction Challenges - The project crosses three cities and five counties, passing through 140 natural villages and featuring 110 key points, with the southern line facing significant construction challenges, including a tunnel under the Yellow River that extends 4,500 meters with a maximum burial depth of 55 meters [4]. - The construction team overcame high water pressure, complex geological conditions, and steep gradients to complete the longest heating tunnel in China [4]. Group 4: Urban Heating Needs - Jinan, as a major city in the Yellow River basin and a key area for air pollution transmission in the Beijing-Tianjin-Hebei region, has been under pressure to meet increasing heating demands while adjusting its energy structure [5]. - The operation of the "Liaohotou Jinan" project will allow for the shutdown of 54 coal-fired heating boilers in the main urban area of Jinan by the end of the year [5].