Core Viewpoint - The article discusses the innovative clean heating solutions being implemented in Gansu Province, China, to ensure residents stay warm during the heating season while also addressing air pollution concerns. Group 1: Clean Heating Projects - The Yan'erwan sewage source heat pump station in Lanzhou is the first project in Gansu to utilize sewage as a heat source, providing heating to surrounding areas [1][3] - The heat pump station features five 10-megawatt sewage source heat pump units that can be adjusted based on weather conditions to meet heating demands [3] - The Ma Tan geothermal heating demonstration project extracts 74°C geothermal water from 2,300 meters underground, which is then filtered and delivered to residents [5] Group 2: Environmental Benefits - The geothermal heating project covers an area of approximately 750,000 square meters, providing heating for over 7,000 households and saving more than 7,000 tons of standard coal annually [9] - The clean energy heating initiatives in rural areas include solar thermal systems that convert solar energy into heat, ensuring warmth without traditional coal stoves [10][12] - The use of biomass clean energy boilers in rural households utilizes agricultural waste, reducing coal pollution and promoting resource recycling [14][18]

Core Points - The article discusses the exploration of clean heating methods in Gansu Province, particularly in Lanzhou, aiming to reduce energy consumption and carbon emissions during the heating season [1] Group 1: Urban Heating Innovations - Lanzhou has introduced the first sewage source heat pump station in Gansu, set to operate in the 2025 heating season, which can reduce carbon emissions by 47,000 tons annually compared to traditional gas boilers [1] - The sewage source heat pump technology extracts thermal energy from treated sewage without burning fossil fuels, creating a closed system that returns sewage to the treatment plant [6] - Another project in the Qilihe District utilizes geothermal water extracted from 2,300 meters underground, saving over 7,000 tons of standard coal and reducing CO2 emissions by approximately 19,000 tons each year [8] Group 2: Rural Clean Heating Initiatives - In rural areas, Gansu is promoting clean heating solutions, such as solar thermal systems that convert solar energy into heat for residential use without coal stoves [11] - In Huai County, villagers are installing biomass clean energy boilers that use agricultural waste as fuel, effectively reducing coal pollution and promoting waste recycling [12] - A total of 5,150 households in Huai County are set to implement clean energy heating renovations by 2025, significantly lowering atmospheric pollutant emissions [12]