Hebei northern power grid includes Tangshan, Zhangjiakou, Qinhuangdao, Chengde and Langfang. Hebei northern power grid is a regional power grid under the state grid. The power supply business areas include Tangshan, Zhangjiakou, Qinhuangdao, Chengde and Langfang, and there are 43 counties (autonomous regions and municipalities) with an area of 104 10000 square kilometers and a population of 22.77 million. Hebei North Power Grid, headquartered in Beijing, shoulders the important mission of serving Hebei's economic and social development and ensuring safe and reliable power supply in the capital Beijing. Hebei Power Grid belongs to the State Grid, which was established on February 9, 20 12 and is headquartered in Beijing. Hebei power grid plays an important role in ensuring power supply, promoting energy transformation, serving economic and social development and promoting environmental protection. Hebei Power Grid will continue to adhere to the service tenet of "People's electric power industry serves the people", continuously improve the quality and efficiency of power supply services, and make greater contributions to promoting local economic and social development.