It depends on several factors
1. Windmill configuration
2 Wind conditions
For example, if the diameter is 60 meters, the wind speed is greater than 38 kilometers per hour, the capacity of Power generation can also reach 2,000 kilowatts.
Generally speaking, level 3 wind power is valuable for use. However, from an economic and reasonable point of view, wind speeds above 4 meters per second are suitable for electricity generation. According to measurements, a 55 kilowatt wind turbine has an output power of 55 kilowatts when the wind speed is 9.5 meters per second; when the wind speed is 8 meters per second, the power is 38 kilowatts when the wind speed is 6 meters; per second, only 16 kilowatts; and when the wind speed is 5 meters per second, it is only 9.5 kilowatts. It can be seen that the greater the forcethe stronger the wind, the greater the economic benefits.
As mentioned in the answer, only when the wind speed is greater than 4 meters/second can it have the value of generating electricity.
The name wind energy is equivalent to wind. wave speed and height at 10 meters on flat, open terrain. Terrestrial Physics Symptoms
Level meters/second kilometers/hour nautical miles/hour (meters)
0 Calm wind 0-0.2. <1 <1 - Calm, smoke going straight up
1 Gentle wind 0.3-1.5 1-5 1-3 0.1 Smoke can indicate wind direction
< p>2 Light breeze 1.6-3.3 6-11 4-6 0.2 Leaves make a slight noise3 Breeze 3.4-5.4 12-19 7-10 0.6 Leaves and small branches tremble
4 Zephyr 5.5-7.9 20-28 11-16 1.0 Dust and shredded paper are kicked up and small branches tremble
5 Cool wind 8.0-10 .7 29-38 17-21 2.0 The little branches swayed and there wasit small waves on the water surface
6 Strong wind 10.8-13.8 39-49 22-27 3.0 Large branches swayed and power lines blew.
7 Gale 13.9-17.1 5.0-61 28-33 4.0 The whole tree shakes and it is difficult to walk against the wind
8 Strong wind 17.2-20.7 62- 74 34-40 5.5 The branches are broken and the resistance to walking against the wind is very strong
9 Strong wind 20.8-24.4 75-88 41-47 7.0 Minor damage to buildings occurred
10 Strong wind 24.5-28.4 89-102 48-55 9.0 Some trees were uprooted and damage to buildings was severe
11 Storm 28.5-32.6 103-117 56-63 11.5 Rarely encountered, with widespread damage
12 Hurricane 32.7? 118? 64 14.0
Wind trees cannot replace real trees. Large-scale commercial use of trees has a negative impact on ecology.
The impact of wind energy projects on the green environmentlogic:
1. The construction of the project will affect the local ecological environment, such as destroying vegetation, changing topography, and creating water and soil. erosion.
2. This has effects on insects and livestock. Many birds and insects die, as do humans, when they see the turbine spinning.
3. Produce noise pollution. Wind turbine noise mainly comes from the noise generated by the generator, gearbox and blades cutting through the air.
4. Project operations will produce electromagnetic radiation effects.
5. Acquisition of project land may lead to social problems.
6. The construction of the project may have a landscape impact on local cultural remains.
7. Affect bird habitat and migration. As the capacity of the wind turbine increases, its swept area and height increase. When wind turbines are installedin the flight path of birds, they can hit the moving blades during flight and die.
8. Some foreign environmental protection workers oppose the construction of wind turbines in coastal areas and pastoral areas, saying it would destroy the coastal and pastoral landscape and constitute a kind of visual pollution.
9. The impact on ecology, water and atmosphere caused by project supporting projects, such as roads, living areas, etc., must also be considered. Building a wind power plant requires occupying land to build wind turbine foundations and roads, transmit wind energy into electricity, and erect transmission lines, etc., which will have a certain impact on the lives of local residents.