A new nuclear power unit using Hualong One, a domestically designed third-generation nuclear reactor, began commercial operation on Monday in south China's Guangdong Province, according to China General Nuclear Power Corporation (CGN). The commissioning of the No.2 unit marks the completion and full operation of the first-phase project of the Taipingling nuclear power plant, the first nuclear project in the Guangdong-Hong Kong-Macao Greater Bay Area to deploy Hualong One technology. The No.1 unit of this project became operational in April this year. The two units are expected to generate over 18 billion kilowatt-hours annually, enough to provide power for nearly 2 million people, and cut carbon dioxide emissions by 16.63 million tonnes per year, according to Zhang Guoqiang, chairman of CGN Huizhou Nuclear Power Co., Ltd.