(Characters of the Two Sessions) Academician Decoding China's Hydropower: Will Play an Important Role in Global Emission Reduction
China News Service, Beijing, March 9th: Academician decodes China's hydropower: it will play an important role in global emission reduction
Reporter He Shaoqing
"China is the country with the most abundant hydropower energy in the world. At present, Baihetan Hydropower Station, together with Wudongde, Xiluodu and Xiangjiaba Hydropower Stations located in the lower reaches of the Jinsha River, as well as the Three Gorges and Gezhouba Hydropower Stations located on the Yangtze River, constitute the world's largest clean power plant. Energy corridor." Xu Weilin, deputy to the National People's Congress, academician of the Chinese Academy of Engineering, executive vice president of Sichuan University, director of the State Key Laboratory of Hydraulics and Mountain River Development and Protection, said in an exclusive interview with Chinanews.com during the National People's Congress that the continuous development of China's hydropower not only includes It will contribute to the realization of China's "dual carbon" goal and will also play an important role in global emission reduction.
Data map: The dam of Baihetan Hydropower Station under construction.
(UAV photo) Photo by China News Agency reporter Zhang Lang
Baihetan Hydropower Station is the largest and most technically difficult hydropower project under construction in the world. All its units will be put into operation in July this year.
As one of the backbone power sources of the "West-East Power Transmission", the Baihetan Hydropower Station will generate an average of 62.4 billion kWh per year after it is fully put into operation, which is equivalent to saving 20 million tons of standard coal and reducing carbon dioxide emissions by more than 50 million tons per year.
Talking about this "great power", Xu Weilin said that the original creation of a large number of hydropower technologies in China came from western developed countries in the 20th century. The level of operation and management is generally at the forefront of the world.
Baihetan Hydropower Station has many world's highest, such as the world's first and largest million-kilowatt water turbine unit, the first use of low-heat cement and intelligent monitoring technology to ensure that there is no temperature crack in the dam, etc. Baihetan Hydropower Station also marks the rise of China's hydropower technology to a new level.
Hydropower stations not only have comprehensive benefits such as flood control and shipping, but also can be jointly developed and integrated with wind power and photovoltaic power generation, thereby further increasing the proportion of clean energy.
How to minimize the impact on the ecological environment during the construction and operation of hydropower stations tests the strength of a country's scientific research and infrastructure.
"As long as it is a project, it will affect the ecological environment more or less, so our question should be: how to find the best balance between benefit and harm avoidance." Xu Weilin said that in the process of China's hydropower development, the ecological environment Significant progress has been made in conservation, especially in reducing the impact of damming on aquatic life in rivers, on riverbed regeneration, and on vibrations in surrounding areas.
Chinese researchers provide fish migration conditions through new fishway technology, reduce the impact of dam construction on fish water temperature and environment by optimizing flood discharge operation methods, reduce the risk of flood discharge resulting in excessive saturation of dissolved gases in the water body and cause fish death, and reduce the risk of fish death. At the same time, China also protects the living environment of fish by setting a reasonable minimum discharge flow to ensure the ecological base flow of the water-reducing reaches.
In Xu Weilin's view, although China's hydropower technology has been at the forefront of the world, in the future, China's hydropower projects will still face a shift from construction-based to long-term safe operation, hydropower development from development priority to ecological environmental protection priority, and ecological environmental protection from the point of view (Project area), line (along the river) to face (watershed) "three major transformations", which requires China to continue to increase technological innovation, strengthen the application of information technology and new materials in hydropower projects, strengthen hydropower and wind power, photovoltaic Integrated construction of power generation and pumped storage.
"In the future, as long as we continue to adhere to the concept of ecological protection and based on the innovation of ecological protection technology, the impact of hydropower projects on the ecological environment will be controlled to a minimum level." (End)