Advantages and disadvantages of solar energy application:
1. Advantages
(1) Universal: the sun shines on the earth, without geographical restrictions, no matter land or sea, no matter mountains or islands, they are available everywhere and can be directly developed and used without the need for mining or transportation.
(2) Harmless: The development and use of solar energy will not pollute the environment. It is one of the cleanest sources of energy, which is extremely valuable today as environmental pollution becomes more and more serious.
(3) Huge: The energy of solar radiation that reaches the Earth's surface each year is approximately equivalent to 130,000 billion tons of coal, and its total amount constitutes the greatest energy that can be developed in the world today.
(4) Long term: based on current energy rateNuclear power generated by the sun, hydrogen storage is enough to last for tens of billions of years, and life on Earth is also about billions. of years. In this sense, we can say that the energy of the sun is inexhaustible.
2. Disadvantages
(1) Dispersion: Although the total amount of solar radiation reaching the Earth's surface is large, the energy flux density is very low.
(2) Instability: due to the limitations of natural conditions such as day and night, season, geographic latitude and altitude, as well as the influence of random factors such as clear , cloudy, cloudy, rain, etc., reaching a certain ground Solar irradiation is both intermittent and extremely unstable, which makes the large-scale application of solar energy more difficult.
(3) Low efficiency and high cost: at the current level of development of energy usesolar, certain aspects are theoretically feasible and technically mature. However, some devices using solar energy have low efficiency and high cost. Generally speaking, the economy cannot compete with conventional energy sources. For a considerable period, the future development of the use of solar energy will be limited mainly by economic reasons.
Briefly describe the main advantages of developing solar energy resources, including environmental friendliness, renewable nature and economic benefits.
1. Environmentally friendly
Solar energy is a clean and pollution-free source of energy. Compared to traditional fossil energy, its use does not produce waste gases or pollutants. because the waste residues will not have a negative impact on the environment. Resource developmentSolar energy can reduce global greenhouse gas emissions and reduce the risk of environmental pollution, which is of great significance for protecting the earth's ecological environment.
2. Renewability
Solar energy resource is a renewable energy source that will not be depleted or reduced due to its use. The reserves of solar energy resources are huge and can meet the needs of human beings for long-term use. Compared with non-renewable fossil energy, the development of solar energy resources can reduce dependence on limited resources and reduce the risk of energy shortage, which is of great significance for achieving sustainable development.
3. Economic benefits
The development of solar energy resources has economic benefits. With continued advancements in technology andlarge-scale production, the manufacturing cost of solar equipment is gradually reduced, and the use of solar resources can save the consumption of other energy, thereby reducing the cost of energy consumption. In addition, solar energy resources can also be used in various fields, such as electricity, transportation, construction, etc., to provide various supports and promotions for economic development.
Notes on the use of solar energy resources:
1. Installation angle and location
When installing solar panels, you must choose the appropriate angle and position. Solar panels should be placed in the direction of the rising sun to maximize absorption of solar energy. At the same time, the best installation angle of solar panels should be determined based on geographic latitude and location.solar altitude angle. Generally speaking, solar panels should be installed in a ventilated, sunny and dry place, and ensure that they do not affect the use of surrounding buildings and facilities.
2. Safety Measures
When using solar energy resources, you should pay attention to safety. Solar energy resources use energy from solar radiation. Therefore, when installing solar panels, the human body should avoid direct contact with its surface to avoid burns. Additionally, solar panels can produce sparks while in use, so avoid placing flammable and explosive objects near them to avoid fires or explosions.
3. Maintenance
Solar energy resources require regular maintenance. The surface cleanliness of solar panels should be checked frequently and dustSafety and dirt must be removed promptly to maintain their photoelectric conversion efficiency. At the same time, the supports and fixings of solar panels must be checked regularly to ensure their strength and reliability. Additionally, cables and wires should be checked regularly to prevent them from being chewed by rats or vandalized, causing leaks or short circuits.