Since the second half of 2023, Guangzhou Investment Group has fully implemented the spirit of the mobilization meeting for the construction of Guangxi's first offshore wind power demonstration project, with the goal of building high-quality projects, green projects, and clean projects, with a clear-cut focus on hard work, strong effectiveness, and implementation, and coordinating multiple resources , strengthened the work force, so far the cumulative investment has exceeded 1 billion yuan, and many milestone construction nodes such as the hoisting of the first wind turbine have been completed. The project construction has accelerated and achieved new results.
Progressing simultaneously on land and sea, engineering construction has achieved new breakthroughs
In terms of offshore engineering, the construction team of Guangzhou Investment’s offshore wind power project in the third quarter The hoisting of 2 wind turbines was successfully completed, and the 220kV submarine cable, land cable, and 66kV submarine cable were successfully offline and shipped. After more than five months of hard work by hundreds of workers day and night, the modular offshore booster station with the largest single capacity in China has been completed and shipped to the Beibu Gulf to start commissioning. We strive to successfully transmit power back to the offshore booster station by the end of the year. In terms of onshore engineering, the project plans to build a 220kV onshore centralized control center. At present, the main body of the electrical building has been capped, and the installation and commissioning of electrical equipment is being carried out steadily and orderly.
Be prepared for rainy days and effectively respond to extreme weather
In order to effectively respond to extreme weather such as typhoons, the Guangzhou Investment Offshore Wind Power Project construction team based The number, type and characteristics of wind power construction and operation and maintenance ships, combined with the characteristics of Beibu Gulf waters, scientific layout and advance planning of sheltered waters for each ship, keeping information flowing with the marine meteorological department, timely release of weather information, and continuous tracking of ships through independent monitoring platforms Dynamic to ensure that all types of ships are evacuated in time before the arrival of severe weather. The project construction team conducted various gale weather prevention operations a total of 4 times, evacuating more than 30 ships and more than 500 people in total, effectively improving the ability to prevent and respond to extreme weather.
Using practice as combat, emergency response capabilities are comprehensively improved
In August this year, the Guangzhou Investment Offshore Wind Power Project Construction Team and Fangchenggang The Municipal Maritime Search and Rescue Center and Fangchenggang Municipal Maritime Safety Bureau jointly held Guangxi’s first offshore wind power demonstration project anti-wind burst emergency drill. By carrying out regular drills and unplanned drills, they improved the pertinence, operability and practicality of various emergency plans at sea, and strengthened Collaborate as a whole, speed up the filling of shortcomings, and comprehensively improve the emergency response capabilities of wind power practitioners. This activity is the first multi-subject, large-scale, multi-scenario and high-difficulty large-scale practical comprehensive emergency joint drill in Guangxi waters.
It is reported that Guangxi’s first offshore wind power demonstration project is the world’s first all-wind turbine foundationThe offshore wind power project uses a rock-embedded jacket as its foundation. The geological structure of the sea area is a typical rock foundation seabed. The seabed topography and geology are complex, and the rock hardness of the sea area is high, which brings challenges to the construction and hoisting of wind turbine foundations. The project invested in advanced rock-socketed drilling rig equipment and auxiliary facilities, forming the first domestic engineering case of basic rock-socketed three-pile jacket and rock-socketed submarine cable, providing reliable reference for domestic offshore wind power construction in similar rock-socketed terrain.
The wind turbine unit of this project has the largest impeller diameter in its class. A single blade is 111.5 meters long and weighs 42 tons. The impeller sweep area is 40,627 square meters; the height of the hub center from the sea surface is 133.4 meters. It is equivalent to a height of 45 stories. The unit uses glass fiber epoxy resin composite blades, which have the characteristics of large size, lightweight, strong wind catching ability, good aerodynamic performance and high power generation efficiency. It can effectively cope with the complex offshore environment and is more suitable for the characteristics of wind energy resources in the Beibu Gulf. Under rated operating conditions, the blade tip speed is 95.3 meters/second. A single fan rotates once to generate 17.0 watt-hours, which is equivalent to the electricity consumption of a family of three for nearly 4 days; a single fan can generate 25 million kilowatt-hours per year. Clean electricity can meet the annual electricity needs of 15,000 households. After the project is fully completed, the annual grid-connected electricity will be approximately 2.06 billion kilowatt-hours, which can meet the basic electricity needs of 2 million households. It can save 620,000 tons of standard coal consumption and reduce 1.64 million tons of carbon dioxide emissions every year.
At the critical moment when the first batch of offshore wind power units are connected to the grid for power generation, Guangzhou Investment Group will continue to keep a close eye on the nodes, accelerate progress, go all out in all aspects of project construction, and use practical actions to assist Achieve "zero breakthrough" in offshore wind power in Guangxi and make greater contributions to striving to create a new era of magnificent Guangxi.
