Current situation and future development of China'

2022-07-24
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In 2017, China's wind power industry is changing the operating principle of the experimental machine. There is a fundamentally fixed collet shape on the body of the experimental machine and analysis of the future development trend.

wind power is a clean and stable new energy. Today, with the increasingly serious environmental pollution and greenhouse gas emissions, wind power generation is recognized as a globally recognized scheme that can effectively mitigate climate change, improve energy security and promote low-carbon economic growth, It has been highly concerned by governments, institutions and enterprises of various countries. In addition, wind power is a clean and stable new energy. Today, with the increasingly serious environmental pollution and greenhouse gas emissions, wind power generation, as a globally recognized program that can effectively mitigate climate change, improve energy security and promote low-carbon economic growth, has received high attention from governments, institutions and enterprises. In addition, wind power has become one of the fastest growing energy sources in the world in recent years due to its relatively mature technology and higher cost-effectiveness and resource efficiency

1. Overview of the development of the global wind power industry

the wind power market in 2016 was led by China, the United States, Germany and India. The performance of France, Turkey and the Netherlands exceeded expectations. Although 2016 failed to surpass the record year 2015 in terms of new installed capacity, it still reached a fairly satisfactory level. According to the annual report on global wind power development issued by the Global Wind Energy Council, in 2016, the new installed capacity of global wind power was 54600mw, a year-on-year decrease of 14.2%, of which China's new installed capacity of wind power reached 23328mw (provisional data), accounting for 42.7% of the new installed capacity of global wind power in 2016. By the end of 2016, the cumulative installed capacity of global wind power had reached 486749mw, a cumulative year-on-year increase of 12.5%. By the end of 2016, the total installed wind power in China had reached 168690mw (provisional data), accounting for 34.7% of the total installed wind power in the world

cumulative installed capacity of global wind power in the year

data source: compilation of public data

based on the cumulative installed capacity of wind power at the end of 2016, the top five wind power markets in the world are China, the United States, Germany, India and Spain. From 2001 to 2016, the average annual compound growth rate of cumulative installed capacity of wind power in the above five countries is shown in the following table:

data source: compilation of public data

2 Overview of China's wind power industry

at present, China has become the largest and fastest-growing market for wind power generation in the world. According to the statistics of the Global Wind Energy Council, the cumulative installed capacity of global wind power increased from 23900mw as of december31,2001 to 486749mw as of december31,2016, with a compound annual growth rate of 22.25%, while the cumulative installed capacity of China's wind power increased by 49.53% over the same period, ranking first in the world; In 2016, China's newly added wind power installed capacity was 23328mw (provisional data), accounting for 42.7% of the global newly added installed capacity that year, ranking first in the world

(1) overview of China's wind energy resources

China has a vast territory, a long coastline, a land area of about 19.6 million square kilometers whose service life is less than 5/5 of the average service life of industrial products, and a coastline (including islands) of 32 to ensure the geometric accuracy of the whole machine, 000 kilometers. It has rich wind energy resources and has great wind energy development potential. According to the latest assessment results released by the China Meteorological Administration in 2014, the technological development of wind energy resources with a wind power density of more than 150 W/m2 at a height of 70 meters on land in China is 7.2 billion kw, and the technological development of wind energy resources with a wind power density of more than 200 W/m2 is 5 billion kw; The technological development of wind energy resources with a wind power density of more than 150 W/m2 at a height of 80 meters is 10.2 billion kw, and the technological development of wind energy resources with a wind power density of more than 200 W/m2 is 7.5 billion kw

① regional distribution of wind energy resources

China's wind energy resources are widely distributed, of which the relatively rich areas are mainly concentrated in the southeast coast and nearby islands, as well as the northern (northeast, North and northwest) regions, and there are also some wind energy rich points in the interior. In addition, offshore wind energy resources are also very rich

a. the coastal and island regions are rich in wind energy: the coastal and island regions include the coastal areas of Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, Guangdong, Guangxi and Hainan provinces (cities) with a width of nearly 10 kilometers. The annual wind power density is more than 200 Watts/square meter, and the wind power density line is parallel to the coastline

b. wind energy rich zone in the northern region: the wind energy rich zone in the northern region includes three provinces in Northeast China, Hebei, Inner Mongolia, Gansu, Ningxia, Xinjiang and other provinces (autonomous regions) with a width of nearly 200 kilometers. Wind power density is more than w/m2, and some can reach more than 500 W/m2, such as Alataw pass, Dabancheng, Huitengxile, huitengliang in Xilinhot, Chengde paddock, etc

c. inland wind energy rich areas: the wind power density is generally below 100 W/m2, but in some areas, due to the influence of lakes and special terrain, wind energy resources are also rich

d. offshore wind energy rich area: the sea area in the East with a depth of meters along the sea is vast, but limited by marine functional zoning such as shipping lines, ports and aquaculture, the actual amount of wind energy resources that can be developed by offshore technology is far less than that on land. However, in Jiangsu, Fujian, Shandong, Guangdong and other places, offshore wind energy resources are rich and close to the power load center. Offshore wind power can become an important clean energy for the future development of these areas

the geographical distribution of wind energy resources in China does not match the existing power load. The power load in coastal areas is large, but the land area rich in wind energy resources is small; The northern region is rich in wind energy resources, but the power load is small, which brings difficulties to the economic development of wind power. As most wind energy resource rich areas are far away from the power load center and the power construction is weak, large-scale development needs the support of power extension

② seasonal distribution of wind energy resources

China's wind energy resources are highly seasonal, generally rich in spring, autumn and winter, and poor in summer. However, the seasonal distribution of wind energy resources is just complementary to hydro energy resources. China is rich in hydropower resources in summer, and the rainy season in the south is about months or months. Therefore, the large-scale development of wind power generation can make up for the shortage of power and electricity generated by hydropower in winter and spring in the dry season to a certain extent

(2) the development and current situation of China's wind power industry

the construction of wind farms in China began in the 1980s. In the following ten years, it has gone through the initial demonstration stage and the industrialization establishment stage, and the installed capacity has increased steadily and slowly. Since 2003, with the bidding of the first phase wind power concession project of the national development and Reform Commission, the construction of wind farms has entered the stage of large-scale and localization, and the installed capacity has increased rapidly. Especially since 2006, the installed capacity has doubled for four consecutive years, forming an explosive growth. In recent years, the rapid development of wind power in China has benefited from the clear planning and the development goals of continuous updating and upgrading, which has strengthened the confidence of local governments, power enterprises, operating enterprises and manufacturing enterprises in the development of wind power, and has a direction and goal for efforts; The rapid development of wind power also promotes the continuous revision and improvement of the planning objectives. At the National Conference on the preliminary work of large-scale wind farm construction held in 2003, the national development and Reform Commission deployed the preliminary work of large-scale wind farm construction nationwide, requiring all regions to carry out detailed investigation of wind energy resources, wind farm planning and site selection and pre feasibility study of large-scale wind farms. Through this work, all provinces (autonomous regions and municipalities directly under the central government) have basically found out the reserves of wind energy resources, put forward their own planning objectives in combination with the site selection of wind farms, and laid a good foundation for the rapid development of wind power

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