The wind is caused by the different heating of the sun on the surface of the earth. The temperature difference causes the formation of atmospheric motion. Although only 2% of solar energy reaching the earth is converted into wind energy, the total amount is very considerable. The world can actually use 2X1O'MW of wind energy, which is 10 times larger than the total amount of water energy that can be exploited and utilized on the earth. At present, the use of wind energy is mainly the generation of electricity. Wind power has the fastest growth in the new energy and renewable energy industries, with an annual increase of 35%. The annual growth in the United States, Italy, and Germany is as high as 50%.
German wind power has accounted for 3% of total power generation, and Danish wind power has exceeded 10% of total power generation. The installed capacity of wind power in the world has reached more than 25,000 MW, and it can meet the electricity demand of 15 million households, that is, 38 million people. Although Europe accounts for more than 70% of the total installed capacity of wind power in the world, other countries are actively opening up the market and more than 50 countries are actively promoting the development of wind energy. Due to the relative maturity of wind power generation technology, many countries have invested a lot and developed rapidly, so that the price of wind power is continuously declining. At present, the cost of wind power generation is 0.4-0.7/KWH. Considering environmental protection and geographical factors, plus government tax incentives and related support, Some regions can already compete with thermal power and other energy sources. In the global context, wind power has formed an industry with an annual output value of over 5 billion U.S. dollars. The main investment in the construction of wind farms is wind turbine equipment, which accounts for more than 80% of the total investment. Wind turbines from 100w-1MW, there are many kinds of specifications. Small and medium-sized wind turbines operate independently from the grid, and large and medium-sized wind turbines form wind farms or wind farms to generate electricity. At present, grid-connected power generation is dominated by 500KW-750KW units, and a small number of 12MW units are also in use. The largest single-unit capacity for trial operation has reached 2.5.3 MW. Of course, some people are also developing SMW wind turbines. Now, not only wind farms are built inland, islands and coasts. Experiences of some European countries such as the United Kingdom and the Netherlands have shown that when wind farms are built on the sea, economic, environmental and social benefits are even more pronounced.
According to the “Wind Energy 100†report formulated by the World Energy Organization in 1999, it was revised in 2002 as “12 wind energy reports. After scientific estimation, the annual growth of wind power generation will be over 30% in the future, and it is predicted that by 2020, the total installed capacity of wind power in the world The capacity will reach 1260 GW, and the annual power generation will reach 12% of the world's total electricity demand. China is rich in wind energy resources, with reserves of 3.2 billion kilowatts, and an installed capacity of approximately 25.3 billion kilowatts, ranking the first in the world. It has the same magnitude as hydropower installed capacity of 380 million kilowatts that can be developed, and has the potential for commercialization and large-scale development. China’s government attaches great importance to the wind power industry. The “Wind Wind Project†formulated in 1996 aims to encourage the improvement of manufacturing technology and localization rate of medium and large wind turbines. The original plan was to invest 1.5 billion yuan in the wind power industry during the “10th Five-Year Plan†period. . Due to certain business opportunities and market prospects, some local governments and people are also actively involved in wind power. At present, nearly 200,000 small-scale wind turbines have been installed nationwide to play an important role in solving the problems of production and living use of farmers and herdsmen in the western electricity-free region. Twenty-six wind farms have been built in Guangdong, Fujian, Zhejiang, Liaoning, Inner Mongolia, Xinjiang, and other regions. The stand-alone capacity ranges from 200 kilowatts to 1300 kilowatts and the total installed capacity is nearly 400,000 kilowatts.
In terms of equipment, China has been able to develop more than 10 types of small wind turbines from 100 watts and 1 kilowatts. The localization rate of self-developed 200-300 kW wind turbines has exceeded 90%, and the localization of 600 kW turbines has been achieved. It has reached 80%. The immediate goal of our country is that by 2005, the installed capacity of grid-connected wind power generation should reach 1.2 million kilowatts. Despite the rapid growth of wind power generation in China in recent years, the annual growth rate is about 50%. However, both the level of equipment manufacturing and the total installed capacity still have a large gap compared with some developed countries in Europe and the United States, and India also has obvious differences with its neighboring countries. gap. The installed capacity of wind power in China accounts for only 0.11% of the total installed capacity of power in the country, showing how huge the potential for wind power in China is! Guangdong boasts an abundance of wind resources and has built wind farms such as Shantou Nan'ao Island. Shenzhen has conditions and should also take a solid step in wind power.
German wind power has accounted for 3% of total power generation, and Danish wind power has exceeded 10% of total power generation. The installed capacity of wind power in the world has reached more than 25,000 MW, and it can meet the electricity demand of 15 million households, that is, 38 million people. Although Europe accounts for more than 70% of the total installed capacity of wind power in the world, other countries are actively opening up the market and more than 50 countries are actively promoting the development of wind energy. Due to the relative maturity of wind power generation technology, many countries have invested a lot and developed rapidly, so that the price of wind power is continuously declining. At present, the cost of wind power generation is 0.4-0.7/KWH. Considering environmental protection and geographical factors, plus government tax incentives and related support, Some regions can already compete with thermal power and other energy sources. In the global context, wind power has formed an industry with an annual output value of over 5 billion U.S. dollars. The main investment in the construction of wind farms is wind turbine equipment, which accounts for more than 80% of the total investment. Wind turbines from 100w-1MW, there are many kinds of specifications. Small and medium-sized wind turbines operate independently from the grid, and large and medium-sized wind turbines form wind farms or wind farms to generate electricity. At present, grid-connected power generation is dominated by 500KW-750KW units, and a small number of 12MW units are also in use. The largest single-unit capacity for trial operation has reached 2.5.3 MW. Of course, some people are also developing SMW wind turbines. Now, not only wind farms are built inland, islands and coasts. Experiences of some European countries such as the United Kingdom and the Netherlands have shown that when wind farms are built on the sea, economic, environmental and social benefits are even more pronounced.
According to the “Wind Energy 100†report formulated by the World Energy Organization in 1999, it was revised in 2002 as “12 wind energy reports. After scientific estimation, the annual growth of wind power generation will be over 30% in the future, and it is predicted that by 2020, the total installed capacity of wind power in the world The capacity will reach 1260 GW, and the annual power generation will reach 12% of the world's total electricity demand. China is rich in wind energy resources, with reserves of 3.2 billion kilowatts, and an installed capacity of approximately 25.3 billion kilowatts, ranking the first in the world. It has the same magnitude as hydropower installed capacity of 380 million kilowatts that can be developed, and has the potential for commercialization and large-scale development. China’s government attaches great importance to the wind power industry. The “Wind Wind Project†formulated in 1996 aims to encourage the improvement of manufacturing technology and localization rate of medium and large wind turbines. The original plan was to invest 1.5 billion yuan in the wind power industry during the “10th Five-Year Plan†period. . Due to certain business opportunities and market prospects, some local governments and people are also actively involved in wind power. At present, nearly 200,000 small-scale wind turbines have been installed nationwide to play an important role in solving the problems of production and living use of farmers and herdsmen in the western electricity-free region. Twenty-six wind farms have been built in Guangdong, Fujian, Zhejiang, Liaoning, Inner Mongolia, Xinjiang, and other regions. The stand-alone capacity ranges from 200 kilowatts to 1300 kilowatts and the total installed capacity is nearly 400,000 kilowatts.
In terms of equipment, China has been able to develop more than 10 types of small wind turbines from 100 watts and 1 kilowatts. The localization rate of self-developed 200-300 kW wind turbines has exceeded 90%, and the localization of 600 kW turbines has been achieved. It has reached 80%. The immediate goal of our country is that by 2005, the installed capacity of grid-connected wind power generation should reach 1.2 million kilowatts. Despite the rapid growth of wind power generation in China in recent years, the annual growth rate is about 50%. However, both the level of equipment manufacturing and the total installed capacity still have a large gap compared with some developed countries in Europe and the United States, and India also has obvious differences with its neighboring countries. gap. The installed capacity of wind power in China accounts for only 0.11% of the total installed capacity of power in the country, showing how huge the potential for wind power in China is! Guangdong boasts an abundance of wind resources and has built wind farms such as Shantou Nan'ao Island. Shenzhen has conditions and should also take a solid step in wind power.
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