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There are many solar power generation manufacturers on the market today, and each brand of products and services has its own characteristics and advantages and disadvantages. Therefore, choosing which solar power generation is best requires a trade-off and choice based on your own needs and budget. When choosing a solar power manufacturer, you can consider the following factors:
Brand awareness and credibility: Choosing a solar power generation manufacturer with a certain reputation and good reputation can increase the reliability of the product and the guarantee of after-sales service. Product quality and performance:
Choosing reliable quality and stable performance of solar power generation products can ensure long-term stable power generation and operational benefits. After-sales service and technical support: Choose a solar power plant manufacturer that provides perfect after-sales service and technical support, and you can get timely and effective solutions when you encounter problems during operation.
**And cost-effective: Choose** together....
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Mainly look at the material, solar panels generally have a three-layer structure, the middle is a metal conductive layer, mainly by the temperature difference between the first layer and the third layer leads to the directional flow of free electrons to generate electricity, so the first layer and the third layer of materials are the key, what is good, this due to the limited knowledge of the younger brother, so there is no comment.
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Many attempts in China to concentrate power generation are to form an arc of mirrors and focus sunlight on solar panels to generate electricity, and high power generation efficiency can be obtained with very small panels! Then there is the problem of excessive heat, and many technologies are being tested.
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There are already solar power generation systems that have increased the solar energy utilization rate to 75%, but the price is high. $300,000 for a set.
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Looking at the conversion rate, the higher the better.
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Each square meter of panels is about 150W, and according to the calculation of photovoltaic design software, the optimal inclination angle of 35 degrees is 4kwh m per day. If it is a high-efficiency cell, 150W then the efficiency is about it, and the battery panel can generate 4* electricity per day, which is the kilowatt-hour of electricity.
I don't know where the data of your table comes from, it doesn't feel right, the maximum radiation should be around June, and you have a small amount of radiation in summer and a large amount in winter, so it's weird. According to your data, the result is: , it is the kilowatt-hour, a little less.
The efficiency of the entire power generation system, if it is a small system, should be about 90%, that is, the actual amount of electricity you get every day is the above two numbers multiplied by 90%, that is, the degree; Degree.
Maybe it's because of the pollution in Shenyang, the weather, or something, but I still think there's something wrong with your data. Let's take a look at it.
This table is calculated based on your data, which is really too little.
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This depends on the photoelectric conversion efficiency of the solar panel. Crystalline silicon solar cells now typically have an efficiency of 14 percent, which means 140 watts per square meter. Amorphous silicon solar cells are now generally at 6%, which means that one square meter can have 60 peak watts.
Solar energy, generally refers to the radiant energy of sunlight, which is generally used to generate electricity in modern times. The radiant energy released by the high-temperature nuclear fusion reaction inside the sun, of which about one in two billions reaches the earth's atmosphere, is the source of light and heat on the earth.
There are two ways to use solar energy: passive utilization (photothermal conversion) and photoelectric conversion. Solar power is an emerging renewable energy source. Solar energy in a broad sense is the ** of many energies on the earth, such as wind energy, chemical energy, potential energy of water, and so on.
Solar energy is produced by the fusion of hydrogen atoms inside to release a huge amount of nuclear energy, radiant energy from the sun.
Solar panel. 1. Conversion of light and heat. Such as solar water heaters, solar cookers, etc.
2. Conversion of light and electricity, such as solar panels, solar cars, boats, etc. Solar clean energy is to convert the sun's light energy into other forms of thermal energy, electrical energy, chemical energy, energy conversion process does not produce other harmful gas or solid waste, is an environmentally friendly, safe, pollution-free new energy.
Since 1615, when the French engineer Solomon de Cox invented the first machine that uses solar energy to heat air to expand and pump water, human beings have directly used solar energy as an energy source and power for more than 300 years. In China, solar energy, as an emerging clean energy, started late in the research and utilization of solar energy. However, due to the various advantages of solar energy and the support policies of the state, a preliminary solar energy industry chain has been formed in China, and it has shown good development prospects.
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1 square meter is about 140 watts, and the average daily power generation is about 500wh, which is half a kilowatt-hour.
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It depends on what type of solar panels you choose. Monocrystalline silicon, polycrystalline silicon, thin film, gallium arsenide?
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1 square crystalline silicon solar panel.
It is about 120 140w, if it is calculated according to 120w, the sun at 6 o'clock a day, that is, the lamp of 120 6, depends on how many hours a day is used, and it takes several consecutive rains, if it is used for 9 hours a day, 3 rainy days, then the panel is on 30 50w.
The cost required for different regions, different installation difficulties, different roofs, and different installation methods is slightly different. The above rolling ridge is a common installation method calculation.
Principles of power generation. A solar cell is a device that responds to light and converts light energy into electricity. There are many kinds of large permeable materials that can produce photovoltaic effects, such as monocrystalline silicon.
Polysilicon, amorphous silicon, gallium arsenide.
selenium, indium, copper, etc. The principle of their power generation is basically the same, and the process of light power generation is described by using crystalline silicon as an example. P-type crystalline silicon can be doped with phosphorus to obtain n-type silicon, forming a p-n junction.
When light hits the surface of a solar cell, a portion of the photons are covered by silicon material.
Absorb; The energy of the photon is transferred to the silicon atom, causing the electron to make a jump and become a free electron.
The potential difference is formed by accumulation on both sides of the p-n junction.
When the external circuit is turned on, under the action of this voltage, there will be a current flowing through the external circuit to produce a certain output power. The essence of this process is the process of converting photon energy into electrical energy.
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The power generation is related to the material (monocrystalline and polycrystalline, cadmium telluride, perovskite) and process (shingling, p-type n-type, heterojunction, etc.), the local lighting conditions, installation angle, the performance of the reverse tying transformer, the circuit knowledge and loss, and the later operation and maintenance. Generally, 1 watt of annual power generation can reach the degree in Guangdong, and only in Hunan.
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Ordinary solar cells generally output maximum power when the voltage of the battery cell is reached.
Under standard sunlight conditions (1000 watts m²), the output of electrical power on a 1 square meter solar panel is 130 to 180 watts, and the efficiency of photoelectric conversion averages 13% to 18%. Based on Shanghai's average of 1,100 to 1,300 hours of sunshine per year, a 1 square meter of solar panels can generate at least 143 kWh of electricity per year.
The size of the power generated by solar panels is related to two factors:
1) The intensity of the light.
2) The efficiency of the panels.
The intensity of the light can be adjusted by means of occlusion (such as clouds, or glass), unocclusion, and concentrating, and the intensity can vary by tens of thousands of times.
There are two types of efficiency of the panels: one is 6-7% for polycrystalline silicon, the other is 11-12% for monocrystalline silicon, and it is said that the most advanced can already reach 16-17%.
There is no physical and chemical change between the electrified and unenergized solar panels.
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18V, 30V, 36V solar panel itself The most common voltage is 18V, 30V, 36V; In fact, you can do it from anywhere; The above is all DC voltage, and it can also be connected in series with solar panels of the same specification to reach a higher voltage, and then through the inverter, it can be turned into AC power of about 220V for daily use Four-point contour.
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Solar panels convert heat directly into electricity.
There are two ways of solar power generation, one is the light-heat-electricity conversion mode, and the other is the light-electricity direct conversion mode.
1. The light-heat-electricity conversion mode uses the thermal energy generated by solar radiation to generate electricity, which is generally converted into the vapor of the working fluid by the solar collector, and then drives the steam turbine to generate electricity. The former process is the light-heat conversion process; The latter process is the thermal-electric conversion process.
2. The light-electricity direct conversion method is to use the photoelectric effect to directly convert solar radiation energy into electrical energy, and the basic device of light-electricity conversion is the solar cell.
Monocrystalline Silicon Solar Panels:
The photoelectric conversion efficiency of monocrystalline silicon solar panels is about 15%, and the highest is 24%, which is the highest photoelectric conversion efficiency among all kinds of solar panels, but the production cost is very large, so that it can not be widely and widely used in large quantities.
Since monocrystalline silicon is generally encapsulated with tempered glass and waterproof resin, it is robust and durable, with a service life of up to 15 years and up to 25 years.
The above content reference: Encyclopedia - solar panels.
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The power of the solar panel mold of 1 square meter of Tan socks is about 140 to 150W, which is a relatively fixed amount, but the daily light situation is a variable, rain, cloudy days, morning, evening, all affect the power generation, in theory, 1 square meter of solar panels can produce up to kWh of electricity per hour.
Advantages of Solar Panels:
1. Energy independence.
Having a solar system with energy storage allows you to continue generating electricity in case of an emergency. Living in a place where the power grid is unreliable, or is often threatened by severe weather such as typhoons, then this energy storage system is very necessary.
2. Save electricity costs.
Solar photovoltaic panels can effectively use the resources of solar energy to generate electricity, and can save a lot of electricity bills when used in homes.
3. Sustainability.
Oil and gas are unsustainable energy sources because we consume these resources as we use them. But in contrast, solar energy is sustainable because sunlight is constantly replenished and illuminates the earth every day.
4. Low maintenance cost.
Solar PV panels don't have overly complex electrical components, so they rarely break down or need to be maintained at all times to keep them running at their best. <>
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A control system means that any amount of interest or variable within a machine, mechanism or other device can be maintained and changed in the desired way. At the same time, the control system is implemented to achieve a predetermined ideal state for the controlled object. The control system makes the controlled object tend to a certain desired stable state.
Shuo Nai light energy, you can take a look, there are a lot of cases.