铁岭输变电工程可满足超过200万千瓦风电、太阳能发电等新能源并网需求，每年可新增清洁能源消纳 超30亿千瓦时，相当于减少90万吨标煤消耗。工程促进了辽宁北部地区新能源的建设与发展，切实服务 清洁能源强省建设，加快构建辽宁新型电力系统，助力"双碳"目标落地。 科技日报讯 （记者张蕴 通讯员张爱萍）近日，国网辽宁省电力有限公司500千伏铁岭输变电工程投运。 该工程是我国首座500千伏全自主可控新一代变电站，实现了500千伏西泉变电站一、二次设备的核心材 料、关键芯片、操作系统、数据库乃至技术标准体系的全链条国产化，建成国网新一代智能变电站。 铁岭输变电工程由500千伏铁岭－石岭线路工程和500千伏西泉变电站组成。西泉变电站具有典型的新型 电力系统运行特征，系统示范应用了5方面16类原创技术成果，并获批国家电网公司原创技术策源地科 技示范工程。 ...

Group 1 - The Ministry of Commerce expressed hope for a fair business environment for Chinese companies like TikTok in the U.S. [2] - The National Organization for Drug Procurement released the 11th batch of centralized drug procurement documents, emphasizing principles of clinical stability, quality assurance, and anti-competitive practices [2] - Kuaishou and Weibo responded to regulatory discussions by forming special teams for rectification and improving content management [2] Group 2 - The 2025 World Manufacturing Conference opened in Hefei, with over 1,000 guests from more than 40 countries, highlighting the increase in the threshold for the top 500 Chinese manufacturing companies [2] - The China-Laos Railway has facilitated over 1,500 million tons of goods since its operation, with significant growth in agricultural exports [2] - The construction of the Duku Highway project commenced, aiming to enhance transportation efficiency in the region [2] Group 3 - The first fully autonomous 500 kV substation in China was launched in Liaoning, showcasing advancements in domestic technology for power grid safety [2] - Research teams confirmed high-temperature superconductivity in nickel oxide materials, marking a significant scientific breakthrough [2] - Observations from the Huairou-1 satellite provided evidence of a millisecond pulsar associated with a gamma-ray burst, contributing to astrophysical research [2]