Spectrum Analysis on Electricity Consumption Periods by Industry in Fujian Province

Electricity is the basic energy for urban economic development and people's daily life. Exploring periods of electricity consumption has a great significance in improving quality of life, promoting industry development and completing electric power planning. This paper applies the single spectral analysis method to explore the periods of electricity consumption in nine cities at Fujian Province, i.e. Fuzhou, Putian, Quanzhou, Xiamen, Zhangzhou, Longyan, Sanming, Nanping and Ningde, for six industries, i.e. big industry, on-general industry, residential living, non-residential lighting, commercial electricity and agricultural electricity. The data used is the daily electricity consumption data of Fujian Province from January 1, 2019 to April 17, 2022 for each pair of city and industry. It is found that the electricity consumption of most industries has an obvious annual period, except for residential living. In addition, the electricity consumption of some industries in some cities also have week period, quarter period, four-month period or semi-annual period, respectively.