1:100. The gearbox in the wind turbine is an important mechanical component. Its main function is to transmit the power generated by the wind wheel to the generator and obtain the corresponding rotation speed. The ratio of the main gearbox of Chinese wind power is 1: 100. The rotation speed of the main gearbox is 100 times that of the generator. This ratio can improve the efficiency of the entire wind power generation system.
How much does a small wind power station cost?
The process of converting the installed wind power capacity into the amount of electricity that can be generated is as follows:
The amount of electricity that can be generated = the installed capacity of wind power × the power of the wind turbine Working hours
Example:
A wind power station with an installed capacity of 200MW has a total working hours of 2000 hours a year, then its power generation capacity is: 200MW*2000 =400,000MW. That is to say, the wind power station can generate 400 million kWh of electricity per year.
Currently, wind power plants are built in mountainous areas or plains, and the cost per kilowatt is 7,000 to 8,000 yuan. If you invest in offshore wind power, the cost is much higher, with the cost per kilowatt being 10,000 yuan or even higher. Nowadays, small wind power plants have an installed capacity of 50,000 kilowatts, and the investment is 350 to 400 million yuan. The above refers to investment by state-owned enterprises, but there are also individuals who invest in the construction of wind power. The more important consideration for individuals in building wind power is to reduce investment indefinitely. When land acquisition, local officials and ordinary people will also understand that they cannot be treated equally with state-owned enterprises, which can save a lot. Design The government will pay more attention to optimized design and will not focus on face-saving projects like state-owned enterprises. In addition, manufacturers that are not the most well-known may be selected in the bidding process. Based on the above factors, the cost of kilowatts invested by individuals will be 10% to 20% lower than that invested by state-owned enterprises. The cost of a small wind power plant with an installed capacity of 50,000 kilowatts is 270 to 300 million yuan.
Not necessarily accurate, for reference only.