The ocean, which accounts for about 71% of the earth’s area, is deep and mysterious, but it also provides rich resources for human beings every moment. In the current global energy crisis, climate warming, the need to accelerate energy reform, offshore wind power as a clean energy, playing an increasingly important role.

UR9KH With excellent resource endowment and market environment, offshore wind power has gradually become a “new force” for China’s implementation of carbon neutrality.

In recent years, the state has introduced a series of policies to support the development of offshore wind power. The “Action Plan for Reaching the Peak of carbon before 2030” points out that it attaches equal importance to land and sea, promotes the coordinated and rapid development of wind power, improves the offshore wind power industry chain, and encourages the construction of offshore wind power bases. The development of offshore wind power is of great significance to ensure China’s energy security, promote green and low-carbon development, especially to deal with the speed, economic, social and other multiple challenges faced under the “dual carbon” goal.

UR9KH China’s offshore wind energy resources are abundant and the development potential is huge. According to the “China Wind Power Development Roadmap 2050” report of the Energy Research Institute of the National Development and Reform Commission, China’s offshore wind energy resources are open to 500 million kilowatts at a depth of 5-50 meters and a height of 100 meters, with a total area of 394,000 square kilometers. At the same time, China has more than 18,000 kilometers of coastline, the available sea area of 3 million square kilometers, especially in the Bohai Sea rim and southeast coastal areas, the effective wind energy density is 200-300 watts/square meter or more, and the number of hours greater than or equal to 3 meters/second is about 7,000 hours a year. The number of hours greater than or equal to 6 m/s is about 4000 hours, which makes the available efficiency of offshore wind power can reach 2 times that of photovoltaic (Class II), which is about 20% higher than that of onshore wind power (Class II), and the area of offshore wind power with the same power generation is 10% smaller than that of onshore wind power and 5% smaller than that of photovoltaic land.

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UR9KH Based on this, China’s offshore wind power has developed rapidly. Data show that by the end of 2021, China’s cumulative installed capacity of offshore wind power has reached 26.39 million kilowatts, accounting for 54% of the global total, ranking first in the world. The wind blowing from the blue sea is becoming a new force to promote China to fulfill its role as a major country and move toward carbon neutrality.

Challenges and opportunities coexist, closely grasp the “big, transport, wisdom, far” industry trend

It should not be ignored that while ushering in rapid development, the harsh environment makes offshore wind power face many challenges. According to statistics, more than 50% of offshore wind power outages are directly related to electrical arteries. The challenges mainly come from three aspects: first, the equipment is far offshore, the operation and maintenance investment is large, and the “multiplier effect” leads to the operation and maintenance cost is more than 20 to 30 times that of the onshore new energy system; Second, the response speed is slow, it is difficult to judge the fault, and the “blind box effect” brings higher operation and maintenance difficulty; Third, the offshore environment UR9KH changes fast, the time is uncontrollable, and the “channel effect” makes the single failure recovery time as long as 4 to 5 times that of onshore wind power, affecting the power generation. It can be seen that how to ensure the stable operation of offshore fans has become a key factor in the development of offshore fans.

In the process of offshore wind power from the “Red Sea coastal area” to the “blue sea deep water area”, although it faces many difficulties, but under the impetus of the new energy trend, the industry opportunities are still huge, and has shown the characteristics of “large, transport, wisdom, and far”, that is, the single-machine capacity is large, and the project is expanded; Wind farm operation and maintenance to remote, centralized management; Wind farms are moving closer to digital design and intelligent operation and maintenance; The layout plan tends to be further away from the coast, and floating fans are developing rapidly.

As one of the core supports for the construction of a new power system and the formation of an integrated system of source, load and storage, offshore wind power is playing an important role in the “source” end. In the face of the opportunities and challenges of The Times, at the key nodes of promoting the transformation of the energy system, the strong cooperation and joint innovation between the industry’s leading enterprises are highly anticipated.