Recently, SDIC Yalong River Hydropower said in an interview that in the Yalong River Basin, there are abundant hydropower resources, and there are also huge reserves of wind energy and solar energy resources, and there are good conditions for water and wind to complement each other. The water scenery team debuted. In the future, after the clean energy bases in the Yalong River Basin are all completed, the total scale will exceed 100 million kilowatts, of which wind power, photovoltaic power generation will exceed 60 million kilowatts, and pumped storage power generation will exceed 10 million kilowatts. It will become the largest in the world. The green, clean and renewable energy base contributes solidly to ensuring national energy security and helping to achieve the dual-carbon goals.

On December 21, 2022, the National Energy Administration issued an article stating that on December 20, unit 9 of the Baihetan Hydropower Station in the lower reaches of the Jinsha River was put into operation to generate electricity, marking the largest scale under construction in the world, the largest single-unit capacity in the world, and the second largest installed capacity in the world. The large Baihetan hydropower station has all been put into operation, which also marks the completion of the hydropower base in the lower reaches of the Jinsha River.

The National Energy Administration will take this opportunity to supervise and guide relevant parties such as the China Three Gorges Corporation to implement the requirements for the protection of the Yangtze River Basin, further improve the operation management and safe production of cascade power stations in the river basin, and ensure that the functions and benefits of the power stations are fully utilized. At the same time, it is planned to rely on the cascade hydropower regulation capacity of the river basin, and through multi-energy complementarity and integrated development, it will drive the development of new energy sources such as wind power and photovoltaic power generation of more than 60 million kilowatts in the surrounding area, and further build a clean energy corridor in the lower reaches of the Jinsha River.

On June 1, 2022, the National Development and Reform Commission, National Energy Administration, Ministry of Finance, Ministry of Natural Resources, Ministry of Ecology and Environment, Ministry of Housing and Urban-Rural Development, Ministry of Agriculture and Rural Affairs, China Meteorological Administration, and National Forestry and Grassland Administration issued the "About The Notice on Printing and Distributing the 14th Five-Year Renewable Energy Development Plan states that the integrated development of water, wind and wind comprehensive bases will be promoted in an overall manner.

Promote the construction of large-scale hydropower bases in a scientific and orderly manner. Advance preliminary work and implement hydropower development in the lower reaches of the Yarlung Zangbo River. Do a good job in the survey and design of major river strategic projects and control reservoirs in the middle and upper reaches of the Jinsha River, and further optimize the project construction plan in accordance with the principles of ecological priority, overall consideration, moderate development, and ensuring the bottom line. Actively promote the preliminary work of the Gangtuo, Benzilan and Longpan hydropower stations on the Jinsha River, Yagen Class II on the Yalong River, and Danba on the Dadu River.

Promote the construction of projects to realize the scheduled commissioning of hydropower stations such as Wudongde, Baihetan, and Lianghekou of the Yalong River on the Jinsha River; promote the construction of hydropower stations such as the Lawa of the Jinsha River and Shuangjiangkou of the Dadu River; focus on the construction of Xulong on the Jinsha River and Mengdigou on the Yalong River , Yellow River Yangqu and other hydropower stations. Implement the connection of network sources, promote the completion and commissioning of Baihetan power transmission channels in Jiangsu and Zhejiang, and promote the construction of power transmission channels in the upper reaches of the Jinsha River in Hubei and other hydropower bases. Strengthen the grid structure of the power grid in Sichuan and other places, improve the power transmission capacity of the channel during the high water season, and ensure the transmission of hydropower during the high water season.

Actively promote the optimization and upgrading of large-scale hydropower stations, and give full play to the potential of hydropower regulation. Give full play to the existing peak-shaving potential of hydropower, further enhance the flexible adjustment capability of hydropower under the premise of protecting the ecology, and support the large-scale development of wind power and photovoltaic power generation. In the central, eastern and western regions, in order to adapt to the large-scale development of new energy sources, the hydropower units that have been built and are under construction will be expanded and transformed. Scientifically promote the expansion of major hydropower bases such as the Jinsha River, Yalong River, Dadu River, Wujiang River, Hongshui River, and the upper reaches of the Yellow River.

Relying on the Southwest Hydropower Base to coordinate and promote the development and construction of a comprehensive base of water and scenery. Do a good job in the exploration of wind energy and solar energy resources around the main river basins, relying on the completed hydropower, the adjustment capacity of newly commissioned hydropower during the 14th Five-Year Plan period, and the delivery channels of hydropower to promote the coordinated development of comprehensive water and wind power bases during the 14th Five-Year Plan period. For the preliminary and planned hydropower projects, according to the guidance of building a comprehensive base of water and scenery, coordinate the preliminary work of comprehensive development of water and scenery. Coordinate the development of hydropower and new energy, do a good job in the development of wind power and photovoltaic power generation and grid connection, clarify the consumption market of wind power and photovoltaic power generation, improve the resource development, market transaction and dispatching operation mechanism of comprehensive water and wind power bases, and promote the development of Sichuan, Yunnan, Guizhou and Guangxi. , Development and construction of comprehensive water and scenery base in southeast Tibet.

On March 2, 2023, the National Energy Administration issued the "Notice on Matters Concerning Carrying Out National Renewable Energy Integration Planning and Research in Major River Basins".

According to the "Notice", the integrated development of renewable energy in major river basins refers to relying on the development of hydropower in major river basins, making full use of the flexible adjustment capabilities of hydropower and water energy resources, taking into account thermal power with adjustment capabilities, and building a certain scale of wind power within a reasonable range. and photovoltaic-based new energy power generation projects, build a renewable energy integrated comprehensive development base, realize integrated resource allocation, planning and construction, dispatch operation and consumption, improve the economics and channel utilization of renewable energy comprehensive development, and improve water quality. The scale, competitiveness and development quality of wind and solar development will accelerate the process of large-scale and high-proportion development of renewable energy.

The document clarifies that the planning and research focus on the main watersheds where the hydropower resource technology can be developed more than 2 million kilowatts, and the watersheds have been built, are under construction, and the planned new hydropower has a certain adjustment capacity, or the watershed has pumped storage for construction and hydropower supporting operation. conditions of the power station. Aiming at the hydropower regulation capacity, thermal power situation, development potential of wind and solar resources in the basin, and the integrated characteristics, layout, and development plan of renewable energy mainly based on water and wind, it is required to complete the research work by the end of July this year and submit a planning research report .

The above plans include, but are not limited to, the Yangtze River Basin, the Yellow River Basin, the Pearl River Basin, the rivers in the northeast, the rivers in the southeast coast, the main rivers in the southwest, and the main rivers in the northwest.

According to the interpretation of the document of the General Institute of Water Conservancy and Hydropower Planning and Design's "Notice on Matters Concerning the Integral Planning and Research of Renewable Energy in Major River Basins in the Country", hydropower is an important regulating power source in the power system. It can stabilize the fluctuation of wind and new energy power generation output, and promote the large-scale development and high proportion consumption of new energy. my country is rich in hydropower resources, and the amount of technology that can be developed ranks first in the world. By the end of 2021, the installed capacity of conventional hydropower has reached 393 million kilowatts, accounting for about 57.1% of the amount of technology development. The remaining resources that can be developed are mainly concentrated in In Southwest China, Jinsha River, Yalong River, Dadu River and other major rivers still have certain development potential. my country is rich in resources of pumped storage sites. By the end of 2021, the installed capacity of pumped storage will be 36.39 million kilowatts, accounting for only 1.5% of the total installed capacity of electric power. The Medium and Long-term Development Plan for Pumped Storage (2021-2035) The key implementation projects with a total installed capacity of 421 million kilowatts and the planned reserve projects of 305 million kilowatts, and it is proposed to speed up the development of pumped storage in accordance with the principle of exhaustive verification and fast opening.

With the large-scale and high-proportion development of wind and solar new energy and the increasing peak-to-valley difference of the power system, the demand for flexible power supply adjustment in the new power system is more urgent. Under the new situation, the functional positioning of hydropower will gradually change from power-based to power and capacity support. On the basis of giving full play to the regulation capacity of existing hydropower bases in the basin, scientifically promote hydropower development, tap the potential of hydropower regulation, and rationally arrange corresponding pumped storage power stations, which can further improve the flexible regulation capacity of hydropower in the basin. On this basis, within a reasonable range, coordinate the development of new energy projects based on wind power and photovoltaic power generation to achieve multi-energy complementary and integrated development, which can promote the large-scale development of wind power and photovoltaic power generation and support the construction of new power systems.

According to preliminary statistics, there are more than 30 watershed river sections in my country with a technically exploitable hydropower capacity of more than 2 million kilowatts, with a total technically exploitable capacity of about 500 million kilowatts. Hydropower stations with regulating capabilities have been basically built or planned to be constructed, and some river basins are under development. The pre-promotion work of the pumped-storage power station in conjunction with hydropower operation shows that the river basin regulation capacity is generally good.Editor/ZhangHui