Accelerating the construction of renewable energy and adding new impetus to green development (with firm confidence, starting from the beginning)

Since the beginning of this year, a number of major renewable energy projects have been vigorously promoted, and solid steps have been taken in the development of green and low-carbon energy.On the Qinghai Tibet Plateau, at an altitude of 3300 meters, the Qinghai Ma'erdu Hydropower Station is bustling with more than 3600 builders overcoming difficulties such as hypoxia on the plateau, fighting day and night

Since the beginning of this year, a number of major renewable energy projects have been vigorously promoted, and solid steps have been taken in the development of green and low-carbon energy.

On the Qinghai Tibet Plateau, at an altitude of 3300 meters, the Qinghai Ma'erdu Hydropower Station is bustling with more than 3600 builders overcoming difficulties such as hypoxia on the plateau, fighting day and night. The dam filling project has been completed by over 87%;

The Kubuqi Desert, with a total investment of over 80 billion yuan, is currently under construction as the world's largest "Shage Waste" wind power and photovoltaic base. After completion, it can transmit approximately 40 billion kilowatt hours of electricity annually to the Beijing Tianjin Hebei region;

The second phase of the Fujian Zhangpu Liu'ao offshore wind farm project, with a site area of approximately 22.9 square kilometers in the southeast sea area, has started construction, and for the first time, large-scale offshore wind turbines of 16 megawatts and above have been adopted in bulk;

As of the end of 2022, the installed capacity of renewable energy in China exceeded 1.2 billion kilowatts, historically surpassing the national installed capacity of coal-fired power. From January to April this year, the newly installed capacity of wind and photovoltaic power generation in China was 62.51 million kilowatts, accounting for 74% of the country's newly installed capacity. Currently, various regions and departments are coordinating energy security supply and green and low-carbon development, actively promoting renewable energy to enter a new stage of high-quality leapfrog development.

The installed capacity is steadily expanding, and the industrial competitiveness is constantly consolidating

At the construction site of the Yalong River Kela Photovoltaic Power Station at an altitude of 4600 meters in Yajiang County, Sichuan Garze Tibetan Autonomous Prefecture, the booster station has fully entered installation and commissioning, and the builders are making final preparations for the mid year production target. This world's largest water light complementary power station has a construction area of over 16 million square meters, equivalent to the size of over 2200 standard football fields.

Yang Zhiwei, the project manager of Guotou Yalong River Basin Hydropower Development Co., Ltd., introduced that after the project is completed, the average annual power generation will be 2 billion kilowatt hours, which can save over 600000 tons of standard coal and reduce carbon dioxide emissions by over 1.6 million tons. By connecting to the Lianghekou hydropower station, water and light can complement each other, suppressing the randomness and volatility of photovoltaic power generation.

In 2022, the installed capacity of renewable energy in China has steadily expanded, with a new installed capacity of 152 million kilowatts, accounting for 76.2% of the country's new power generation installed capacity, and has become the main body of new electricity installed capacity; The utilization level has steadily improved, with a power generation of 2.7 trillion kilowatt hours, equivalent to reducing carbon dioxide emissions by approximately 2.26 billion tons.

In the first quarter of this year, the water energy utilization rate of major river basins in China was 99.8%, the average utilization rate of wind power was 96.8%, and the average utilization rate of photovoltaic power generation was 98%.

Energy enterprises seize the opportunities for renewable energy development and increase their efforts in planning project construction: This year, National Energy Group plans to complete and put into operation offshore wind power projects such as Bozhong in Shandong, Sheyang in Jiangsu, and Xiangshan in Zhejiang, as well as a batch of photovoltaic base projects such as Ningdong in Ningxia and Ganquanbao in Xinjiang; Huaneng Group plans to start construction of over 30 million kilowatts of new energy throughout the year, with an investment of over 100 billion yuan... The relevant person in charge of the National Energy Administration introduced that this year we will vigorously promote the construction of major renewable energy projects. The installed capacity of wind power, solar power generation, and hydropower is expected to be around 430 million kilowatts, 490 million kilowatts, and 423 million kilowatts, respectively.

At the same time as the large-scale development of renewable energy, technological innovation efforts continue to increase, and industrial competitiveness continues to consolidate.

The height of the hub center is 146 meters, equivalent to 50 floors; The impeller has a diameter of 252 meters and a sweeping area of about 7 football fields; The wind turbine rotates once and can generate electricity for a family of three for about 7 days. This year, China's independently developed 16 megawatt offshore wind turbines have been put into mass use, which makes Wuhan Iron and Steel, the chairman of Goldwind Technology, proud to participate in the research and development.

The 16 MW offshore wind turbine has overcome a series of key technical challenges such as ultra long flexible blades, localization of large spindle bearings, and miniaturization of ultra large capacity generators, breaking the world record for the largest single unit capacity and maximum impeller diameter. "Wuhan Iron and Steel said that the enterprise will continue to adhere to independent technological innovation and improve the stability and reliability of wind turbines.

Only through innovation can one strengthen oneself and compete for the first place. Currently, the focus of the global new energy industry is further shifting to China, with key components such as photovoltaic modules, wind turbines, and gearboxes produced in China accounting for 70% of the global market share; The conversion efficiency of the silicon heterojunction battery independently developed by photovoltaic enterprise Longji Green Energy has reached 26.81%, setting a world record; In 2022, the contribution of equipment made in China to global renewable energy emissions reduction exceeded 40%.

Continuous optimization of development layout, with new models and formats emerging in competition

The sunlight shines on the southern Taihang Mountains, and the blue photovoltaic curtain wall extends like waves. In Peizhai Industrial Park, Huixian City, Henan Province, factory construction is in full swing. After installing photovoltaic curtain walls in the factory, it can generate approximately 330000 kilowatt hours of electricity annually, saving about 300000 yuan in electricity costs. The remaining electricity can also bring additional benefits to the grid, which has attracted multiple enterprises to sign contracts and settle in, "said Guo Dongwei, Secretary of the Party Committee of Zhangcun Township, Huixian City.

Fully utilize resources such as mountainous terrain, farmers' roofs, and factory buildings to promote distributed photovoltaic construction. It is expected that by the first half of this year, the number of household photovoltaic installations in Huixian City will exceed 20000, and the number of industrial and commercial photovoltaic power stations will reach 150.

Both centralized and distributed development are promoted, and the layout of renewable energy development is optimized.

The construction of large-scale wind power and photovoltaic bases, with a focus on deserts, Gobi, and desert areas, is progressing smoothly. As of April this year, the first batch of 97.05 million kilowatt base projects have been fully started, and the project grid connection work has been actively promoted, striving to complete and put into operation before the end of this year. The second batch of base projects have started construction, and the list of the third batch of base projects has been issued and implemented.

Small and beautiful, distributed development has become the main way of wind power and photovoltaic development. On the roofs of buildings, courtyards, and fields, wind turbines rotate and photovoltaic panels shine brightly. In the first quarter of this year, there were 33.66 million kilowatts of newly installed photovoltaic power connected to the grid, of which 18.13 million kilowatts were distributed photovoltaic power generation, accounting for over 53%.

The relevant person in charge of the National Energy Administration stated that currently, China is focusing on desert, Gobi, and desert areas, accelerating the construction of new energy bases on seven continents, including the upper reaches of the Yellow River, the Hexi Corridor, and the Yellow River bends; Coordinate the development and construction of the two major water and scenery comprehensive bases in Sichuan, Yunnan, Guizhou, Guangxi, and Southeast Tibet; Promote the large-scale development of offshore wind power and the demonstration of far-reaching offshore development.

New models and formats are emerging, and renewable energy application scenarios are being integrated and innovated.

The construction site of the Three Gorges New Generation Grid Friendly Green Power Station Demonstration Project in Ulanqab, Inner Mongolia is bustling with enthusiasm. Under photovoltaic panels, cold and drought resistant plants such as alfalfa and sheep grass have been planted, and a green development model of "power generation on the board and planting under the board" is being formed.

Photovoltaic panels can reduce surface water evaporation and improve vegetation growth rate. The first phase of the project will be completed and put into operation by the end of 2021, and the second and third phases are planned to be completed by the end of this year, "said Zhang Xiaolong, Deputy Director of North Construction Management of the Three Gorges Energy Construction and Management Branch.

In Qinghai, the National Power Investment Corporation has integrated "ecological photovoltaic+energy storage+heat storage" to meet the power and heating needs of over 30000 farmers and herdsmen in Guinan County; In Xinjiang, the Sinopec Kuche Green Hydrogen Demonstration Project has entered the sprint stage of production, utilizing the abundant solar energy resources in the local area to produce up to 20000 tons of green hydrogen annually... New models and formats such as photovoltaic+agriculture, photovoltaic desertification control, and renewable energy hydrogen production have formed a new situation of multi energy complementarity, local adaptation, and diversified integrated development.

Accelerated construction of transmission channels and strong improvement in consumption level

Most of China's wind and solar resources are distributed in the "Three North" regions, and the electricity load is mainly concentrated in the central and eastern regions and southern regions, resulting in significant pressure on cross provincial transmission; In addition, there is intermittent fluctuation in wind and photovoltaic power generation, which will pose challenges to the smooth operation of the power system due to the large-scale and high proportion of access in the future. Therefore, renewable energy needs to be developed on a large scale and consumed at a high level.

Build transmission channels to assist in the "generation" of new energy.

The Sichuan Tibet Plateau is rich in hydropower and new energy resources, with huge reserves. In the next 20 years, large-scale hydropower bases such as the Jinsha River and Lancang River, as well as surrounding large-scale photovoltaic bases, will be developed and constructed one after another, with a total installed capacity of over 100 million kilowatts. "Zhou Xinfeng, Deputy General Manager of State Grid Hubei Electric Power, introduced. As the first ultra-high voltage direct current project to enter the hinterland of the Sichuan Tibet Plateau, the Jinshang Hubei project can replace over 17 million tons of coal annually and reduce carbon dioxide emissions by about 34 million tons, significantly increasing the proportion of green electricity in central China.

The on-site equipment of the Sichuan Chongqing 1000 kV ultra-high voltage AC project is roaring. After the project is completed, the voltage level of the main grid of China's Southwest Power Grid will be increased from 500 kV to 1000 kV, and the annual clean electricity transmission capacity will exceed 35 billion kilowatt hours; The Zhumadian Wuhan 1000 kV ultra-high voltage AC project is steadily advancing, which will assist in the large-scale transmission of clean energy in the western and northern regions, meet the rapidly growing electricity demand in central China... The construction of transmission channels is accelerating, effectively improving the consumption level of renewable energy electricity.

Promote energy storage construction and promote the "good use" of new energy.

Nanning, Guangxi, accelerated the construction of the first pumped storage power station in South China during the 14th Five Year Plan period. At present, the excavation work for the second floor of the underground powerhouse has been completed, and it is expected to complete the excavation and support of the powerhouse by the end of this year, and start the installation of mechanical and electrical equipment. "said Liu Cao, Manager of the Engineering Department of the Engineering Construction Management Branch of South Grid Energy Storage Company.

In 2022, the construction of pumped storage energy in China has significantly accelerated. There are 48 newly approved pumped storage projects nationwide, with an installed capacity of 68.9 million kilowatts, exceeding the total approved scale during the 13th Five Year Plan period. Throughout the year, 8.8 million kilowatts were newly put into production, setting a new historical high. This year, State Grid of China plans to start construction of 5 more pumped storage power stations and put them into operation; Southern Power Grid will continue to accelerate the construction of four main pumped storage power stations, including Nanning, Meizhou Phase II, Zhaoqing Langjiang, and Huizhou Zhongdong.

The growth of new energy storage installations such as lithium-ion battery energy storage, compressed air energy storage, and liquid flow battery energy storage continues to accelerate. As of the end of 2022, the installed capacity of new energy storage projects in China has reached 8.7 million kilowatts, an increase of over 110% compared to the end of 2021. The relevant person in charge of the National Energy Administration introduced that currently and in the future, we will accelerate the construction of peak shaving capacity in power systems such as pumped storage, peak shaving gas power, and new energy storage, vigorously improving the elasticity of residential and commercial electricity loads, and providing strong support for the development of wind power, photovoltaic, and other industries.

Low carbon energy development is crucial for the future of humanity. The development of renewable energy in China is in a period of promising strategic opportunities. We will deeply implement the new energy security strategy, firmly promote the large-scale, high proportion, market-oriented, and high-quality development of renewable energy, and gradually spread the beautiful China's animation industry.

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