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Heat records in China strain power grid and raise health concerns

China warned against power disruptions on Wednesday as people struggled in the record heat to stay cool. The elderly were also warned to be careful of heat stroke.

Energy officials reported that China's power supply was suffering while its demand soared, surpassing 1.5 billion kilowatts last week for the first. This is the third record China has set this month. It also coincided with China's first nationwide heat-related alert.

The weather official Chen Hui said at a Wednesday press conference that "high-temperature weather... will have an impact" on the power supply and generation. He added that it would reduce hydropower production and decrease the efficiency of photovoltaic generators.

The authorities will send alerts informing electricity suppliers of tactics like peak shaving and cross-regional power dispatching if they are needed, said Chen, a representative of the China Meteorological Administration.

Jia Xiaolong is deputy director at the National Climate Centre. She said that since mid-March the number of days with temperatures above 35 degrees Celsius (95 Fahrenheit) has been the highest ever recorded.

Authorities urged outdoor workers to reduce their activity during such "sauna" days, and asked elderly people to stay inside unless absolutely necessary.

Since mid-March, temperatures have reached new records in Henan, Hubei and Shandong provinces in central China, in Shandong, in the east and in Sichuan, in the southwest. In northwestern Shaanxi, Xinjiang and Shaanxi, the average temperature has also reached its highest level ever.

Jia reported that 152 weather observatories across the country recorded temperatures over 40 degrees C. One observatory in Xinjiang reached 48.7 degree C.

He said that August could be as hot as or even more so than in previous years. (Reporting and editing by Xiuhao chen and Liz Lee, Christopher Cushing and Clarence Fernandez).

(source: Reuters)