The wind level is divided into 18 levels.
The wind scale (wind scale), called wind level, is a method of expressing wind intensity. Wind force refers to the force exerted by wind blowing on an object. Generally, wind force is divided into 13 levels according to different phenomena caused by wind blowing over objects on the ground or water surface. The minimum is level 0 and the maximum is level 12. Winds at level 12 are particularly dangerous.
According to the national standards released by China in June 2012, based on the wind speed at a height of 10 meters at the standard weather observation site, the wind power level is divided into 18 levels. The commonly used units for expressing wind speed are nautical miles per hour, meters per second and kilometers per hour, respectively. Commonly used units forr forecast of typhoons in China are meters per second. Wind is an important resource.
Advantages of wind energy
1. Environmental protection: Wind energy is a renewable and clean energy that does not produce pollutants or emit greenhouse gases. and has a low impact on the environment. Compared to traditional fossil fuel-based electricity generation, wind energy is more environmentally friendly.
2. Energy Diversity: Wind energy is an abundant energy source that is not limited by geography or resources and can be widely used around the world. Wind energy can provide a diversified energy supply, reduce dependence on fossil fuels and improve energy security.
3. Economic Benefits: Wind power is an economically feasible source of energy. With theWith advancements in technology and the achievement of economies of scale, the cost of wind energy has gradually decreased, becoming a competitive energy source. At the same time, wind energy can also generate jobs and tax revenue for the local economy.
4. Promote the development of renewable energy: Wind energy is an important part of the development of renewable energy. By promoting wind energy, we can promote the research, development and application of renewable energy technologies and promote the transformation and upgrading of energy structure.
If the wind speed is level 3 throughout the year, it is recommended to use photovoltaic power generation
The cost should be about the same
Wind power is slightly cheaper (without subsidies, the long-term benefits are poor, because the annual durationThe current electricity generation of wind energy is about the same as that of photovoltaic energy)
But now you can still get benefits if photovoltaic is connected to the grid
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Because if you use 250 degrees daily, you need a lot of power generation equipment
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Photovoltaics requires an installed capacity of 40 kW. Excess electricity can be sold to the State Grid.
If you use it entirely for your own use, you can also receive subsidies from the State Grid.
For example, if you consume 250 kilowatt hours of electricity per day and use it yourself, the state will also subsidize you 0.42 per kilowatt hour = which means you can earn 100 yuan every day after removing the electricity bill you save
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