With the promotion of carbon neutral economy, clean energy has received more and more attention. Wind power generation, in particular, has become the vanguard of new energy.
But can wind power really make money? Today we will calculate with you how many kilowatts of electricity can be generated by wind power generation in a circle, and how much money can be made in a year.
First of all, let's look at the power of wind turbines, most of the wind turbines currently in operation are 1,5MW.
The meaning of 1,5MW is that the power is 1500kW, if converted into energy, it can generate 1500 kWh of electricity in one hour. That is, 1500/60 = 25 degrees per minute can be sent. So how many turns can the impeller of a wind turbine turn in a minute?
The impeller speed of the wind turbine is transmitted to the generator via the gearbox. Then as long as we know the speed of the generator and the speed ratio of the gearbox, we can know the speed of the impeller.
Internal structure
Wind power internal structure
Let's take The Sinovel 1.5MW wind turbine as an example.
The rated speed of the generator is 1800rpm:
Because the current impeller diameter of the generator set is designed to the larger, the gearbox speed ratio is gradually getting larger, we calculate according to the gearbox speed ratio by 104,
Then the impeller speed is 17.3 rpm.
Then, if the power generation is 25 degrees per minute, the impeller can generate 1.45 degrees of electricity in one turn.
We calculate according to the on-grid price of wind power of 0.6 yuan, which means that the impeller can earn 0.8 yuan in one turn. Now the state has no subsidies, and if there are subsidies, or if you count the sale of carbon emissions, the money will become higher.
If you are idle, you can stand under the fan and count the money, a circle of 8 cents and 8 cents.
So how many kWh of electricity can a typhoon produce in a year?
Looking at the wind resources of the wind farm in this way, the current domestic wind farm is basically 2000-3000 hours a year, and we calculate it according to 2500 hours.
The annual power generation is 1500 degrees X 2500 hours, that is, 3.75 million kWh of electricity, still calculated according to 0,6 yuan / kWh, that is, 2.25 million.
In other words, a fan can earn about 2.25 million a year. However, at present, carbon emissions can be sold for money, and the actual profit in a year should be higher.