Core Points - The Xinjiang Tarim Basin 750 kV power transmission and transformation project has officially completed its construction phase, marking a significant milestone in China's largest 750 kV ultra-high voltage ring network project [1][2] - The project spans a total length of 4,197 kilometers and encompasses an area of 530,000 square kilometers, with the completed network expected to cover 1,060,000 square kilometers [2] - The project is anticipated to enhance the power transmission capacity in southern Xinjiang, facilitating the integration of renewable energy sources and supporting local economic development [6][7] Project Overview - The project consists of nine 750 kV substations and one switching station, with a total investment of 4.736 billion yuan [3] - It includes the construction of 900 kilometers of new 750 kV lines and 1,891 towers, with over half of the lines traversing desert areas, setting records for the longest power transmission routes in desert conditions [3][4] Construction Challenges - The construction faced significant challenges, including the need to build access roads through sand dunes and the difficulty of excavating tower foundations in shifting sands [4][5] - In mountainous regions, construction relied heavily on manual labor due to the lack of machinery, with workers digging deep pits for tower foundations [5] Economic Impact - The project is expected to reduce the curtailment of renewable energy, with an estimated increase in renewable energy acceptance capacity by 8 million kW, which will support the development of 50 million kW of renewable energy in southern Xinjiang [6] - It is projected to drive industrial investment exceeding 28.3 billion yuan and create over 8,000 jobs [6] Strategic Importance - The project will accelerate the formation of a robust power grid structure in Xinjiang, enhancing both internal supply and external transmission capabilities [7] - It is positioned to support the national energy supply strategy and facilitate the transition from energy advantages to economic advantages in the region [7]

Group 1: Deepwater Equipment Delivery - China National Offshore Oil Corporation (CNOOC) has delivered 24 sets of 2000-meter deepwater suction anchors to Brazil, marking it as one of the largest deepwater oil and gas equipment deliveries by China [1][3] - The suction anchors weigh approximately 2674 tons, with a maximum height of 21 meters and a diameter of 8 meters, presenting significant technical challenges in precision control and deformation management due to their large size and thin wall thickness of 25 millimeters [3] Group 2: Technological Innovations - The project team achieved a quality compliance rate exceeding 99.9% through innovative construction techniques, including horizontal extension and vertical assembly, as well as advanced technologies like 3D scanning and finite element simulation [5] - The suction anchors will be installed at the Mero oil field in the Santos Basin, located in southeastern Brazil [5] Group 3: Marine Research Vessel - The first ocean-class intelligent comprehensive scientific research vessel, "Tongji," has been delivered, designed and built independently by China, featuring a 2000-ton capacity and advanced green, quiet, and intelligent technologies [6][8] - "Tongji" measures 82 meters in length and 15 meters in width, capable of accommodating 15 crew members and 30 research team members, with an operational range of 8000 nautical miles [8] Group 4: Power Grid Development - The Xinjiang 750 kV ring network project is nearing completion after 15 years of construction, with a total line length of 4197 kilometers, making it the largest 750 kV ultra-high voltage transmission ring network in China [11][17] - The project will enhance the power grid coverage to approximately 1.06 million square kilometers, nearly one-ninth of China's land area, and will facilitate the integration of renewable energy resources in the Tarim Basin [11][17]