Source: CCTV news client
Yesterday, the 2024 Beijing International Wind Energy Conference opened. As the "weather vane" and "barometer" of China's wind power industry, the conference attracted 120,000 professional visitors from 45 countries and regions around the world.
This year's wind energy conference focused on the whole wind power industry chain, and comprehensively demonstrated the advanced technologies and solutions of key components such as wind turbines, blades, gearboxes, bearings, as well as engineering hoisting, operation and maintenance. At the same time, the exhibition also set up three theme displays, including hydrogen energy, offshore engineering and equipment, and new energy storage, bringing a new exhibition experience to the audience, and at the same time, showing the future development direction of the mainland wind power industry.
According to the latest report of the Global Wind Energy Council, the new installed capacity of global wind power will reach 117 GW in 2023, a year-on-year increase of 50% and a record high. Among them, China accounted for nearly 65% of the world's total new installed capacity with 75 GW of new installed capacity. From January to August this year, the mainland's wind power generation capacity was close to 600 billion kWh, accounting for nearly one-tenth of the country's total power generation, and has become the third largest source of electricity in the mainland.
Qin Haiyan, Secretary-General of the Wind Energy Committee of the China Renewable Energy Society: China's cumulative wind power lifting capacity has exceeded 500 million kilowatts, and the global cumulative installed capacity is a little more than 1 billion kilowatts, and China basically accounts for half of the world's installed capacity. China's wind power will play an increasingly important role in the development of global wind power, the global energy transition and the response to climate change.
Reporter's visit: The world's largest wind power equipment at this conference
On the first day of the opening of the 2024 Beijing International Wind Energy Conference, the biggest feeling of CCTV reporters at the scene was that the speed of innovation of exhibited products was getting faster and faster, and second, the scale of wind power equipment was getting bigger and bigger. Let's follow the reporter to take a look at a number of the world's best at this conference.
01:21
CCTV reporter Gu Junling: The world's largest 26-megawatt offshore wind turbine just rolled off the assembly line last week, with a power equivalent to 2~3 times that of the current mainstream wind turbines, and a unit can generate 100 million kilowatt-hours of electricity a year, which can meet the electricity demand of more than 55,000 households for a year.
The world's longest wind turbine blade that has rolled off the assembly line is more than 147 meters long, which is equivalent to the length of two A380 passenger aircraft. Longer blades mean more swept area, which produces more electricity. This extreme length also puts forward higher requirements for the performance of the blade material.
From the cross-section of the blade, we can see that its interior is hollow, this main beam part is black high-strength carbon fiber, and the main body of the blade is green high-performance glass fiber. With this combination, the blades can be made longer and stronger.
The world's tallest wind turbine tower is 185 meters, equivalent to more than 60 floors high. Even if you take the elevator from the bottom, it will take more than ten minutes. So why build so high? According to the staff, as the blades are now getting longer and longer, the height of the tower should also match them. At the same time, the wind at high altitudes is stronger and more stable, and the power generation efficiency is naturally higher.
(Source: CCTV News Client)