纽约时报：中国已有42个……

Core Insights - The article highlights China's advanced ultra-high voltage (UHV) transmission technology, which enables the transfer of electricity generated from renewable sources in the northwest to eastern provinces, showcasing a significant infrastructure achievement [2][3]. Group 1: UHV Transmission Technology - The UHV transmission technology is defined as alternating current at 1000 kV and direct current at ±800 kV and above, likened to an "energy highway" [3]. - China has established 42 UHV transmission lines capable of transporting electricity at voltages between 800 kV and 1100 kV, significantly surpassing the capabilities of the U.S. [8][9]. - The technology is crucial for supporting China's clean energy development and is seen as a model for other countries to follow in transitioning to green energy [3][5]. Group 2: Renewable Energy Development - Over half of the cars in China are now battery-powered, and the country has developed a high-speed rail network spanning approximately 48,200 kilometers, reflecting a massive demand for electricity [4]. - In April, wind and solar energy contributed to over 25% of China's total electricity generation, indicating rapid growth in renewable energy sources [4]. - The article emphasizes that while the U.S. struggles with lengthy approval processes for new transmission lines, China is rapidly expanding its grid infrastructure to accommodate its energy needs [8][9]. Group 3: International Comparison - The article contrasts China's achievements with the U.S., noting that the highest voltage transmission line in the U.S. operates at 765 kV and covers only 2000 miles, which is less than the length of a single Chinese UHV line [8][9]. - The U.S. media's interest in China's UHV technology reflects a desire for American policymakers to accelerate their own transition to clean energy [3][9].