Beijing, March 20 (Youth.cn) - A robot was checking equipment in National Digital Green Big Data Center in Qinghai Province. Built by China Telecom, the center was put into operation in July 2022. Benefiting from green energy development in Qinghai, it combines digital economy with green energy development. As the first 100% green energy big data center and the model of intelligent supply system of green electricity, it already achieved “carbon neutrality”, which also means “zero-carbon emission”. It reduces 300 thousand tons of carbon emission within a year. Photo/VCG