[The world's largest high-voltage direct mounted energy storage project] Recently, the world's highest and largest high-voltage direct mounted energy storage system, the Huaneng Hainan State 150 MW/600 MWh energy storage project, was successfully connected to the grid and achieved full power operation in Hainan State, Qinghai Province at an altitude of 3000 meters. This project is invested and developed by Huaneng Qinghai Branch, and developed and constructed by Huaneng Qingneng Institute. The total installed capacity is 150 MW/600 MWh. It is a shared energy storage project on the grid side of three new energy projects newly built by Huaneng Qinghai Branch. The overall project adopts the 35 kV high-voltage direct hanging energy storage technology led by Qingneng Institute, with a single unit capacity of 25 MW/100 MWh. It can store 600000 kWh of electricity on a single charge and can independently accept grid regulation. It has the characteristics of high voltage level, large single unit capacity, few AC/DC parallel connections, and few communication levels. It does not require a power frequency transformer. On the basis of improving battery capacity utilization and reducing battery parallel safety risks, the system efficiency is improved by 4% to 6%, and it can achieve fast response within 10 milliseconds. In addition, to adapt to the special environment of Qinghai, the project has focused on correcting insulation and electrical clearances at high altitudes to ensure safe, stable, and efficient operation under high-altitude conditions. After the project is put into operation, it can effectively stabilize the fluctuation and intermittency of the output of new energy power stations, provide peak shaving, frequency regulation, power assistance and other services for the power grid, and effectively improve the quality and safety level of the power grid. Editor/Zhou Yingwen

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• 2024.09.18 11:40
• [Belt and Road: The freight volume of the China-Laos Railway exceeded 10 million tons]
• On December 3, 2021, the China-Laos Railway was officially put into operation, opening a new chapter in economic and trade cooperation between China and Laos and Southeast Asia. As of September 16, 2024, the China-Laos Railway has supervised the inspection and release of a total of 10.002 million tons of import and export goods, with a value of 40.77 billion yuan. During this period, the structure of the goods carried was significantly optimized, and the categories increased significantly from more than 500 to more than 3,000. In particular, in the first eight months of 2024, both cargo volume and cargo value have achieved significant growth, showing strong economic and trade vitality. At the same time, the China-Laos Railway + China-Europe Railway Express international intermodal transport mode runs smoothly, promoting a wider range of international trade. The average daily number of international freight trains on the China-Laos Railway has increased significantly, cross-border transportation has covered many countries and cities, and the cumulative volume of goods transported has exceeded 10 million tons, fully demonstrating the great potential and bright prospects of economic and trade cooperation between China and Southeast Asian countries. Editor/Jiang Mingyue

• 2024.09.18 11:31
• [Wang Yi met with Secretary of the Security Council of the Federation of Russia Shoigu]
• Recently, in St. Petersburg, Wang Yi, member of the Political Bureau of the CPC Central Committee and director of the Foreign Affairs Office of the CPC Central Committee, held an important meeting with Shoigu, secretary of the Russia Federal Security Council. The two sides had an in-depth exchange of views on China-Russia relations, BRICS cooperation, multilateralism and the Ukraine crisis. Wang Yi stressed that the steady development of China-Russia relations has benefited from the guidance of the two heads of state, and expressed support for the work of the Russian BRICS presidency. For his part, Shoigu affirmed the achievements of Sino-Russian cooperation and looked forward to the complete success of the Kazan summit of BRICS leaders. The two sides also expressed their respective positions on the Ukraine crisis, and China reaffirmed its objective and fair attitude and is committed to promoting a political settlement of the crisis. Editor/Jiang Mingyue