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On November 26, the Sinopec Banshan Ring Road Comprehensive Energy Station, located on Longmenzhen Avenue in Jiulongpo District, Chongqing, announced that it has been operating safely and steadily for over 1,500 days, with a total hydrogen supply of more than 400 tons. As the first hydrogen refueling station in the country to utilize hydrogen storage well technology, this milestone represents an important breakthrough for China in high-pressure underground hydrogen storage technology and its commercial application. It is said that the key feature of this hydrogen refueling station lies in its innovative use of a \"underground hydrogen storage tank\" design – with a working pressure of up to 45 MPa and a design lifespan of 25 years. This represents a world-first underground hydrogen storage technology for which complete independent intellectual property rights exist. “The “underground hydrogen tank” has solved the problem of hydrogen storage in mountainous cities. Compared to traditional ground-based hydrogen storage systems, this high-pressure hydrogen storage well technology saves about two-thirds of the floor space required. Given Chongqing’s geographical characteristics of many mountains and steep slopes as well as limited land availability, this technology has successfully overcome the land-related constraints in the construction of hydrogen energy infrastructure in mountainous cities, providing a replicable solution for similar areas across the country. To date, this technology has secured 3 **patents** and been included in Chongqing’s 2024 list of key technical equipment worthy of promotion and adoption. In actual operation, this station demonstrates efficient and convenient service capabilities. After trying it out, driver Hu Gang said, \"From going through security checks at the station, passing the static discharge procedure to having 12 kilograms of hydrogen filled in, the whole process takes only 10 minutes. The price of 25 yuan per kilogram is very affordable, and the vehicle can travel about 550 kilometers after being refueled.\" ”It is understood that this station has a daily hydrogen supply capacity of 1,000 kilograms, sufficient to meet the daily fueling needs of around 100 hydrogen fuel cell vehicles. Not only does it incorporate various functions such as hydrogen refueling, gas filling, charging, and vehicle maintenance services, but it also serves as a key energy hub along the Chengdu-Chongqing \"Hydrogen Corridor\" and the Western Land-Sea New Route, providing solid support for the operation of logistics vehicles and buses in the region. Leveraging its abundant industrial by-product hydrogen resources (with an annual production of over 1.5 billion cubic meters, sufficient to power 20,000 buses or 500,000 passenger cars), Sinopec has established a complete domestic supply chain for hydrogen production, purification, transportation, and refueling. High-purity hydrogen with a purity of 99.999%, produced by purifying the chemical by-product hydrogen from Chuanwei Chemical, is transported via pipelines to the hydrogenation hub stations, and from there it is delivered to sub-stations such as the Banshan Ring Road using tankers, thereby ensuring stability in hydrogen supply. To date, Sinopec has built and put into operation 8 hydrogen refueling stations in Chongqing. In the future, it plans to accelerate the establishment of such stations along highways such as the Chengdu-Chongqing and Chongqing-Chengdu-Guangzhou routes, thereby connecting major cities and creating an interconnected hydrogen energy network. It is worth noting that the operation of this hydrogen refueling station represents an important achievement in the development of the \"Western Hydrogen Valley\" in Jiulongpo District, Chongqing. After 8 years of development, the \"Western Hydrogen Valley\" has attracted leading enterprises such as Bosch from Germany and Guohong Hydrogen Energy, thus establishing a complete supply chain that includes commercial hydrogen-powered vehicles as well as core products like fuel cells. To date, this region has deployed over 1,100 hydrogen fuel cell commercial vehicles nationwide, with a total driving distance exceeding 20 million kilometers. These vehicles are widely used in industries such as chemicals, mining, and agricultural operations. The Banshan Ring Road Comprehensive Refueling Station, as a key node in the \"1-hour hydrogen supply network,\" is helping to further develop the regional hydrogen infrastructure network. (Chongqing Correspondent Office of China Daily, Editor: Tan Yingzi, Correspondent: Zhou Jianbo)