State Grid employees check power lines in Yantai, Shandong province, on Jan 6. [Photo by Tang Ke/For China Daily]

BEIJING - China's electricity consumption, a key barometer of economic activity, maintained stable growth in 2022, official data shows.

Power use increased 3.6 percent year-on-year to nearly 8.64 trillion kilowatt-hours last year, according to the National Energy Administration.

Power consumption in primary industry grew 10.4 percent year-on-year in 2022. Electricity consumed by secondary and tertiary industries increased 1.2 percent and 4.4 percent, respectively.

Residents' power consumption registered a year-on-year increase of 13.8 percent during the period.