First of all, wind speed. Here we need to study the geography of the wind farm site and the wind distribution: average annual wind speed, maximum wind speed and minimum wind speed. To determine how many hours of effective wind speed are available in a year, or refer to the local capacity factor. If the available wind speeds are too low or unstable, the project is not worth it.
Also, is this wind project connected to the Internet or not? So how far is it from the nearest power plant? How long should the cable be?
The surrounding environment (residents, land, etc.) and the impact on it must also be taken into account.
That's all I can think about right now. .
Advantages and disadvantages of wind energy
Wind energy requires a significant initial investment. Investment per kilowatt uper unit 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 of thermal power . 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. Wind power generation does not require coal, oil and other fuels needed to produce energy.thermal energy or 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 and other buildings only occupy about 1% of the wind farm land, and the remaining sites can still be usedfor grazing. , fish farming and crop cultivation; the area requirements are small and can be built in terrain conditions such as hills, seashores, river banks and deserts.
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. 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 considered quite extensive, such as in mountainous areas, islands, isolated areas and camps. , fl islandsfloating, 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; In addition, the cost of wind turbines is not high enough to compete with fossil fuels in the short term. However, with increasing human 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.
1. (1) Advantages of wind energy: huge accumulation, wide distribution, renewable and pollution-free.
(2) Disadvantages of wind energy: low density, instability, large regional differences, dispersion over large areas and randomness of wind energy, and low energy densityergetic!
2. Wind power generation: The advantages of large-scale systems are high power supply reliability and low operation and maintenance costs. The disadvantage is the high cost of the system. .
The advantages of small systems are high energy production, low system costs and low operation and maintenance costs.
The disadvantage is the low reliability of small wind turbines. .
Since solar energy and wind energy are highly complementary, hybrid wind and solar power generation systems compensate for the lack of resources of independent wind and photovoltaic systems.
Trapped.
A wind turbine is an energy conversion device that converts wind energy into mechanical energy.
As shown in Figure 1-4, the wind engine consists of five parts:... Its disadvantage is that it is difficult to start. ...The capacity of small wind turbines is not large, the power is generally from a few watts to several kilowatts, and most of them have the advantages of simple structure and easy transportation. ..In the use of wind energy, energy storage is an important issue. ...
3. The advantages of wind power generation are:
The cost of solar power generation is too high, the technology content is high, and bad weather conditions will affect power generation. ;
However, wind power generation means that the worse the weather conditions, the stronger the wind, the better the electricity production.