Renewable energy construction to speed up green development to add impetus

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 green and low-carbon development of energy.

The Maerblock Hydropower Station in Qinghai Province, located at an altitude of 3,300 meters above sea level, is busy. More than 3,600 workers have been working day and night to overcome the lack of oxygen on the plateau, and more than 87 percent of dam filling has been completed.

Kubuqi Desert, the world's largest "sand desert" wind power photovoltaic base with a total investment of more than 80 billion yuan is under construction, after completion, it can supply about 40 billion KWH of electricity to the Beijing-Tianjin-Hebei region every year;

In the southeast sea, the construction of the second phase of Liuao Offshore Wind Farm in Zhangpu, Fujian, with a site area of about 22.9 square kilometers, began, and the first batch of 16 MW and above large capacity offshore wind turbines was used.

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

The installed capacity has steadily expanded, and the industrial competitiveness has been continuously consolidated

In Yajiang County, Garze Tibetan Autonomous Prefecture, Sichuan Province, the 4600 meters above sea level Yalong River Kela photovoltaic power plant construction site, the booster station has fully entered the installation and commissioning, the builders are making final preparations for the mid-year production target. The world's largest water-light complementary power station has a construction area of more than 16 million square meters, equivalent to the size of more than 2,200 standard football fields.

According to Yang Zhiwei, project manager of Guotou Yalong River Hydropower Development Co., LTD., the project will generate an average of 2 billion KWH of electricity per year, save more than 600,000 tons of standard coal and reduce carbon dioxide emissions by more than 1.6 million tons. Through the connection of Lianghekou hydropower station, water and light can be complementary, and the randomness and volatility of photovoltaic power generation can be stabilized.

 Renewable energy is natural green energy. In 2022, China's renewable energy installed capacity steadily expanded, the new installed capacity of 152 million kilowatts, accounting for 76.2% of the country's new power generation capacity, has become the main body of new power installed capacity; The level of utilization has steadily increased, generating 2.7 trillion KWH of electricity, equivalent to reducing carbon dioxide emissions by about 2.26 billion tons.

In the first quarter of this year, the water energy utilization rate of the country's major river basins 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 opportunity of renewable energy development, and strengthen the planning of project construction: this year, the National Energy Group plans to complete and put into operation offshore wind power projects such as Bozhong in Shandong Province, Sheyang in Jiangsu Province, Xiangshan in Zhejiang Province, and a number of photovoltaic base projects such as Ningdong in Ningxia Province and Ganquanbao in Xinjiang Province. Huaneng Group plans to start more than 30 million kilowatts of new energy and invest more than 100 billion yuan... The relevant person in charge of the National Energy Administration introduced that this year to vigorously promote the construction of major renewable energy projects, wind power, solar power, hydropower installed capacity is expected to be 430 million kilowatts, 490 million kilowatts, 423 million kilowatts.

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

The center of the wheel is 146 meters high, equivalent to a 50-story building; The diameter of the impeller is 252 meters, and the sweeping area is about the size of 7 football fields. The wind turbine rotates once, and the power generation can be used by a family of three for about 7 days. This year, China's self-developed 16 MW offshore wind turbines have been approved for use, which makes Wu Gang, chairman of Goldwind Technology involved in the research and development, proud.

"The 16 MW offshore wind turbine has overcome a series of key technical problems such as ultra-long flexible blades, localization of large spindle bearings and miniaturization of ultra-large capacity generators, setting a new record for the world's largest single capacity and largest impeller diameter." Wisco said that the company will continue to adhere to independent technological innovation to improve the stability and reliability of wind turbines.