Advantages of solar energy
As a new energy source, solar energy has three major characteristics compared to conventional energy sources:
First : it is the most abundant source of energy that humans can use. Clean, pollution-free, environmentally friendly, inexhaustible. It is estimated that over the past 1.1 billion years, the sun has consumed 2% of its energy. In the future, it will be enough to supply humans on earth for billions of years. It is truly inexhaustible.
Second: There is solar energy everywhere on earth, which can be developed and used locally without transportation problems, especially for greenhouses and solar rooms, solar cookers and ovens. high temperature, seawater desalination devices, water pumps. , Thermal power generation devices and solar medical equipment. The areasRural s, islands and isolated areas where transport is underdeveloped have greater use value. Areas between 50 and 60 degrees north and south latitude, where the annual sunshine duration is 1,600 to 2,400 hours (hours), are generally thought to have abundant solar energy that can be used provided that a certain price is spent initially. A sum of money is invested to make good use of solar energy. After installing the device, energy will be delivered to your door continuously, free of charge, and only a small amount of equipment maintenance costs will be spent during this period.
Third: Solar energy is a clean energy source. During development and use, no waste residue, waste water, waste gas or noise will be produced and it will not affect the ecological balance. Absolutely no pollution or public nuisance will be caused.
Fourth: Solar energy does not add thermal load to the Earth. This is a particularly important advantage of solar energy. This is why systems that use solar energy are also called “variable energy systems.” Because when we use solar energy to do work, even though it eventually turns into heat, if we don't use it to do work, it will eventually turn into heat.
Fifth: Solar Energy Safety. Nuclear power generation poses a risk of nuclear leakage. Once a nuclear leak occurs, it will cause a huge ecological crisis. However, solar energy absolutely has no such situation and is very reliable.
Advantages of solar products:
1. Unlimited energy is widely available and energy is provided at the lowest cost. As long as there is sunshine, it can perform phototh conversionermic and operate all year round.
2. Green and environmentally friendly products. As a clean, renewable energy source, solar energy has unrivaled advantages over other energy sources: no environmental pollution and no safety risks.
3. Long life expectancy. For example, the vacuum tube, the main component of the solar water heater, has a lifespan of around fifteen years. After expiration and replacement, other components may continue to be used. for another cycle.
4. When used in conjunction with other energy sources, it can operate in all weathers.
5. Significant economic benefits. One-time investment and long-term benefits are the distinctive features of solar products.
Summary - The use of solar energy is imperative
In view of the advantages and disadvantages of using solar energysolar energy, the development of solar energy remains very desirable. Visual pollution is very subjective, and who can guarantee that a huge collector will not become a spectacular landscape, and the question of cost cannot be short-sighted. Money and space spent can be exchanged over time. thinkI think that in a few years, all non-renewable energies will be exhausted. Right now, solar power will be extremely valuable. As for the problem of poor stability, it is a fact that no one can change, just like farmers think. facing God. In life, the relationship between man and nature is not like that. The birth and death of all things have their own reasons. This is something humans cannot change. Therefore, the use of solar energy is imperative.
Technical areas of solar energy use
Human beings do not use solar energyie solar in three major technical areas, namely photothermal conversion, photovoltaic conversion and photochemical conversion. Additionally, there is energy storage technology. .
Photochemical conversion of sunlight includes: photosynthesis, photoelectrochemistry, photosensitive chemistry and photodecomposition reaction. Currently, this technical field is still at the experimental research stage.
Solar photoelectric conversion mainly includes various types of solar panels and power supply systems.
A solar cell is a device that directly converts sunlight into electrical energy.
The photoelectric efficiency of solar cells is about 10-14%, and their product types mainly include monocrystalline silicon, polycrystalline silicon and amorphous silicon. The price of domestic products (referring to the total costphotovoltaic devices) is approximately 60 to 80% yuan/peak watt.
Solar cells have a wide range of applications. For example, artificial satellites, unmanned weather stations, communications stations, television relay stations, solar clocks, electric fences, black lights, navigation beacons and railway signals.
Sunlight thermal conversion technology has the largest number of products. Such as water heaters, water boilers, dryers, heating and cooling, greenhouses and solar rooms, solar cookers and high temperature ovens, seawater desalination devices, pumps water heaters, thermal power generation devices and solar medical equipment.
What are the advantages of solar water heaters
Advantages of solar energy: As a new source of energyergie, solar energy has three major characteristics compared to conventional energy sources: First: It is the most powerful Energy Source that humans can use. Abundant energy It is estimated that over the past 1.1 billion years, the sun has consumed 2% of its own energy. In the future, this will be enough to supply humans on earth. years. It is truly inexhaustible...
As a green, renewable and clean energy, solar energy is fully used in the field of domestic hot water and heating is without any doubt became. a new star in the water heater industry; Compared with electric water heaters and gas water heaters, solar water heaters have many advantages. Below, the editor will briefly describe to you what are the advantages of solar water heaters?
Advantage 1: Renewable green energy
Energy solaris Renewable energy, compared with conventional energy, has the characteristics of being inexhaustible and inexhaustible as long as there is sunshine, solar water heaters can carry out photothermal conversion, and solar water heaters can operate all year.
Advantage 2: Significant economic benefits
One-time investment and long-term benefits are the main features of solar water heaters. Under normal circumstances, households using solar water heaters can save 90% on daily electricity and gas bills used for heating water and reduce household costs. Household expenses can be fully recovered in 1 at 4 years old.
Advantage 3: Use with other energy sources
Solar water heaters can be used with other energy sources and can operate 24 hours a day. For example,e solar floor heating, solar heaters, solar lawn lights, solar panels, etc.
Benefit 4: Green and environmentally friendly
As a clean and renewable energy source, solar energy is pollution-free environmental or safety risks. If everyone in the province uses solar water heaters, the average temperature can be reduced by 1°C. Therefore, using solar energy to make the sky bluer, the mountains greener, the water clearer and the air fresher is an effective measure for. green environmental protection.
Advantage five: safety, long life
There is a safety problem in gas water heaters and electric water heaters at present used in large quantities. There is no poisoning when using solar energy. It is very safe and presents no dangerer hidden from electric shock. The lifespan of the main components of the solar water heater can reach more than fifteen years.
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