The initial investment in wind energy production is relatively large. The investment per unit kilowatt of wind power generation is much higher than that of thermal power generation and hydropower generation, so the price of grid-connected wind power is also higher than that thermal energy. However, in the current energy shortage situation, it still has incomparable advantages compared with nuclear power, hydropower, thermal power, etc. The technical state and actual exploitation of wind energy show that the cost of building a wind farm is much lower than that of a hydroelectric power plant, thermal power plant or nuclear power plant. Wind power is a clean natural energy, without the environmental pollution problems associated with coal, oil and nuclear power. The pWind power generation does not require the coal, oil, and other fuels needed to produce thermal power or the nuclear materials needed by nuclear power plants to produce electricity. There is no consumption other than routine maintenance.
Compared with other methods, the construction period of wind power is generally very short. The transportation and installation time of a wind turbine does not exceed 3 months. The construction period of a 10,000 kilowatt wind farm is less. more than a year, and the installation of a can A unit is put into production; the installed capacity is flexible and can be large or small according to actual needs, or can be determined according to the amount of funds, making fundraising easier. ; the operation is simple and can be completely unattended; the actual area is small, and the monitoring unit and substation et other buildings only occupy about 1% of the wind farm's land, and the remaining sites can still be used for grazing. , fish farming and crop cultivation; the area requirements are small and can be built in hills, seasides, river banks, deserts and other terrain conditions.
In addition, wind power has the characteristics of diversified power generation methods. It can be operated over the Internet, as a complementary system with diesel generators or independently, which can solve the problem of power consumption in remote areas. without electricity. Offers realistic possibilities. Wind power generation devices can be purchased in any location where the wind is strong and suitable enough to produce electricity. Therefore, the current application of wind power can be considereddefined as quite extensive, such as in mountainous areas, islands, isolated areas and camps. , floating islands, construction sites, lighthouses, radio stations, relay stations, etc. Used as a stand-alone power supply or auxiliary power supply for lighting, electrical instruments, electrical appliances, irrigation, communications, air conditioning, heating, etc. These characteristics of wind energy constitute its advantages.
Wind power plays an important role as an auxiliary energy source, but wind turbines still have some shortcomings. First, energy production is unstable, especially the utilization rate of large wind turbines is low, and they are not yet qualified as independent energy sources; second, the safety and reliability of wind turbines are not fully guaranteed; Wind turbines are not enough to compete with fossil fuels in the short term. CepeHowever, with humanity's increasing demand for energy and the development of science and technology, the above problems will eventually be solved.
Contemporary science and technology can already use wind energy to produce electricity on a large scale. Although current wind power generation accounts for less than 1% of the world's total electricity generation, with continued advancements in wind power technology innovation, it is expected that by 2020 , it will be able to supply 10% of global electricity demand and create 1.7 million jobs and reduce more than 10 billion tonnes of carbon dioxide emissions globally.