Core Insights - The Angola Kake Hydropower Station project, undertaken by China Energy Engineering Group Gezhouba Company, has made significant progress with the completion of the tailwater tunnel No. 1, which was achieved 349 days ahead of schedule [1][2] - The project is located in Angola's Kwanza Norte Province and is part of a planned series of eight hydropower stations on the Kwanza River, with a total installed capacity of 2,172 megawatts and an expected annual generation of 8,566 GWh, earning it the title of "Africa's Three Gorges Project" [2][4] - The tailwater tunnels are crucial for connecting the tailwater regulating chamber to the Kwanza River, with a total length exceeding 10 kilometers, facilitating subsequent unit installation and water storage for power generation [2][4] Project Details - The tailwater tunnel project faced multiple challenges, including tight schedules, strict standards, and significant transportation pressures [4] - The construction team overcame adverse conditions such as high temperatures, humidity, and poor ventilation, achieving a monthly excavation rate of over 182 meters for several consecutive months through innovative techniques like the "dual-machine operation" model [4] - Upon completion, the hydropower station is expected to meet over 50% of Angola's national electricity demand, reduce greenhouse gas emissions by approximately 7.2 million tons annually, and decrease the consumption of non-renewable resources by 2.733 million tons [4]