(240329) -- HARBIN, March 29, 2024 (Xinhua) -- Staff members check the devices at the fourth phrase of the Yilan Jiguan mountain windpower project in Yilan County, northeast China's Heilongjiang Province, March 28, 2024. The Yilan Jiguan mountain windpower project under the China Huadian Corporation (CHD) was put into full operation on Thursday. As the largest windpower project in northeast China's Heilongjiang Province, the four phrases of the project have a total installed capacity of 449 megawatts, and can generate an average of 1.24 billion kWh of power annually. (Xinhua/Wang Jianwei)