Power load in S China’s Guangdong exceeds 100 million kW in winter

China Southern Power Grid Co., Ltd. (CSG) registered a power load of 190 million kW on Jan. 7, a year-on-year increase of 26.71 percent. The robust growth is attributed to increasing power consumption to support sustained economic growth and the cold weather.

In particular, during the winter season, the power load in south China’s Guangdong province exceeded 100 million kW, up 18.94 percent year on year basis, meeting last years 100-million-kW mark five months ahead of schedule.

Additionally, the power load in some provincial-level regions in western China, including Guangxi, Yunnan, and Guizhou, had shattered their records several times since Dec. 2020, with the highest load reaching 29.5 million, 29.78 million and 28.32 million kW, respectively.

As of 15:00 on Jan. 8, CSG’s 106 power transmission lines with a voltage of 110 kV or above were encased in ice with a maximum thickness of 50 mm, including 21 lines with a voltage of 500 kV, 33 lines with a voltage of 220 kV, and 52 lines with a voltage of 110 kV.

A sharp decline in hydropower generation capacity during the dry season, some important lines suspending operation for the construction of municipal engineering, a supply shortage of electricity by coal and gas-fired power plants, and transmission line failures caused by ice coating are attributed to CSG s rising pressure to ensure stable power supply .

 Due to the higher-than-expected increase of power load, CSG has spared no effort to deal with the extreme cold weather to ensure safety and stability of its power grid as well as stable power supply. It has put all available power generating units into use and optimized the maintenance schedule by postponing the maintenance work that affect the power supply.it has also made the best use of the Kunbei-Liubei-Longmen DC project passing through Yunnan, Guizhou, Guangdong and Guangxi to supply electricity to Guangdong and Guangxi.

Workers are arranged to remove ice on an average of seven power transmission lines with a voltage of 500 kV and above every day. On-duty systems are also strengthened to ensure reserves and allocation of de-icing materials,.Repair personnel are arranged for any emergencies at any time.

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