[The world's first 500 kV economical high voltage AC current limiter] A few days ago, the world's first 500kV/90kA economical high-voltage AC current limiter developed by China Xidian Group successfully completed the manual short-circuit test and was successfully put into operation on the Shun-Guang-A line of the 500kV Guangnan Station. The successful operation of the project has filled the domestic economical AC ultra-large short-circuit current suppression technology gap, provided an economical and reliable solution for the suppression of high-voltage AC short-circuit current, and provided a strong guarantee for the reliable operation of the ultra-high-voltage large power grid. Editor/Xu Shengpeng

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• 2026.05.29 14:23
• [The trading volume of China's electricity market increased by 25.6% year-on-year]
• From January to April 2026, China completed a total of 2430.7 billion kilowatt hours of electricity market transactions, a year-on-year increase of 25.6%. From the perspective of transaction scope, the traded electricity within the province reached 1945.6 billion kilowatt hours, a year-on-year increase of 29.4%; The amount of electricity traded across provinces and regions reached 485.1 billion kilowatt hours, a year-on-year increase of 12.2%. From the perspective of trading varieties, the medium and long-term trading capacity is 2118 billion kilowatt hours; The spot trading electricity is 312.8 billion kilowatt hours. The trading volume of green electricity reached 105.3 billion kilowatt hours, a year-on-year increase of 3.2%.Editor/Gong Ziwei

• 2026.05.29 14:18
• [China's first airport photovoltaic power generation exceeds 100 million kilowatt hours]
• According to the smart monitoring platform of Ezhou Power Supply Company of State Grid Hubei Electric Power Co., Ltd., as of 12:00 on May 27, 2026, the cumulative photovoltaic power generation of Ezhou Huahu International Airport has exceeded 100 million kilowatt hours. Ezhou Huahu International Airport is the first professional freight hub airport in China. Since its operation in 2022, its freight business has grown rapidly. Currently, 119 freight routes have been opened, and the hub's cargo volume has risen from less than 10000 tons in the initial operation to 1.4781 million tons by 2025. With the expansion of business, the peak electricity consumption of the airport has also exceeded 20000 kilowatts.Editor/Gong Ziwei