Since the beginning of summer this year, power supply in many places in southern China's cities and coastal areas has been tight, especially Sichuan, which has even had to "stop work and limit power" and "leave electricity to the people". Against this background, many people have moved I thought about how to solve the problem of shortage of electricity in my home.
Someone had an idea. If the hydraulic power is not good, we can use wind power. If you buy a civilian wind motor and install it at the air outlet, no matter how small the power is, it can solve some urgent problems, right?
So, is the wind motor really worth installing? What other things to pay attention to?
What is household small wind power equipment ?
As a clean energy source, wind power has now been widely used in power generation. wind power generation is distinguished from the power. If it exceeds 750KW, it is large-scale wind power generation, and if it is less than small and medium-sized wind power generation. Among them, large wind power accounts for 99.5% of the entire market, while small and medium-sized wind power accounts for only 0.5%.
In my country, wind power generation equipment below 100KW is called small wind power generation equipment, mainly used in rural power construction, mobile communications, etc. in homes and electricity-free areas. According to its structural principle and applicable environment, it is divided into horizontal axis and vertical axis.
Horizontal shaft wind turbine rotates fast and has a high noise, but its power generation power coefficient is relatively large, and its power generation environment requirements are also high. It is necessary to install the power generation equipment in a wind farm environment with an average annual average of 5 meters per second to 15 meters per second per second , the best power generation performance can be achieved. Vertical shaft wind turbines have slower speeds and are much less noise, but their power generation is also smaller than the previous ones. The vertical axis type has no location installation restrictions, and power generation can be started even in low wind speed environments, so it has been widely used in my country.
Currently, in my country, small household wind turbine is mainly used in the following fields: household farm irrigation, water well pumping, battery charging when fishing boats are moored, power supply for snow melting equipment, auxiliary when police stations or fire stations encounter disasters Power supply, etc.
Can household wind turbines solve the problem of tight electricity consumption?
Currently, the actual holding of small wind power generation equipment in my country is about 200,000 units. According to the calculation that each unit can generate 500W of power, the electricity capacity of 200,000 units plus one unit only accounts for 0.0126% of the national installed wind power generation capacity. It can be said that my country's small wind power industry has almost become a forgotten corner, and its impact on the national economy can almost be ignored. The annual power generation of all small wind turbines is 182.5 million kWh, accounting for 0.0053% of the total power generation in the country, that is, 0.53% of ten thousand. Whether in terms of installed capacity or power generation, the small wind power generation industry accounts for a tiny share in my country's power supply and green energy! So it is undoubtedly a drop in the bucket to expect small-scale solutions to the entire power shortage caused by drought.
So for individual families, can it solve the electricity use problem of a family? Let’s take a look at the personal experiences of Americans before.
As the main consumer market for small household wind turbines, the cumulative power generation of the device in the United States reached 80MW as early as 2008. Many of them should not worry about electricity use, right?
However, things went against my expectations. Many residents in areas with poor wind conditions said: Its effect is not that good. Although it has been turning non-stop, it has no way to send out any electricity.
After all, the principle of household wind power generation is to use natural wind power to drive the windmill blades to rotate, and then increase the rotation speed through the speed increaser to promote the generator to generate electricity. Although a breeze of three meters per second can drive the blades to rotate, it is a different matter to actually send out electricity.
A 1000W household wind turbine can theoretically generate 24 kWh of electricity per day, which can be affected by actual wind, wind direction and weather conditions. It is ideal to generate 19 kWh of electricity per day.
Social benefits brought by household wind turbines
However, although household wind turbines cannot solve the problem of large-scale power shortage, the social benefits it brings cannot be ignored.Now my country's small household wind turbines have a relatively stable market, with sales volumes of about 30,000 units recently.
In many relatively remote areas, about 1.5 million farmers, animal husbandry and fishermen have achieved home electrification through household wind turbines, allowing lights and TVs to enter farmers, herdsmen and fishermen's families. People can not only watch TV, VCD, but also With the use of refrigerators and washing machines, the living standards of local residents have been significantly improved.
From the 1980s to the present, my country can only produce small units of 100W from the beginning, and now 10KW wind turbines can be promoted and applied. It can be said that household wind turbines have brought modern civilization to many electricity-free areas in our country.
Not only that, the emergence of electricity has deepened their connection with the outside world, allowing them to get more commercial information by listening to and watching TV and radio, so as to sell their agricultural and sideline products at a more reasonable price and increase their income. Another more important point is that the emergence of household wind turbines has changed the original energy structure of coal and charcoal, and the proportion of renewable energy has increased, thus allowing many places to truly achieve green and environmental protection.
The market prospects of household wind turbines
my country has a vast land and abundant wind energy resources. According to statistics from the National Geological Administration, the areas where wind energy can be used in my country account for 76% of the total national area. However, due to the unbalanced economic development of my country, there are still about 3 million households without electricity and more than 11.4 million people without electricity. These people urgently need them. Household wind turbines and other power generation equipment to solve their electricity needs.
In addition, electricity usage is even more tense in remote military outposts in our country. Many places still use diesel or kerosene generator sets to supply power, and the cost is very high, and in some places it even exceeds 3 yuan/kwh. Most of these places are located in areas with relatively abundant winds. Instead of letting the soldiers and soldiers suffer from the whistling wind, it is better to use the rich wind energy resources to allow our soldiers and soldiers to live a happy and stable life.
. For market investment, small household wind turbines require low R&D funds and low investment risks. But the challenges and difficulties faced are still quite large. First of all, the attention is not high. After all, because its power generation efficiency is poor and not suitable for large-scale development, it is still a niche product in the market.
Therefore, how to provide the most appropriate services for niche markets and accurately enter the target market will also be a topic that small household wind turbine operators need to actively face research.
. For consumers, the biggest difficulty is that the small household wind turbine market lacks an effective product quality supervision system. Although my country also has product standards and testing standards for small wind turbines, they are not mandatory standards, and there is no corresponding market access system , so it is impossible to effectively ensure the quality of products sold on the market.
, especially small household wind turbines, are difficult to judge the actual power generation effect from the appearance. After buying them, I found that they were counterfeit and shoddy products. I wanted to find a manufacturer again, but they might have already left the building empty. In this regard, the country needs to introduce a complete testing system as soon as possible to improve the testing and certification capabilities. On the other hand, it is also necessary to effectively trace the source of the product so that criminals have nowhere to hide.
