In the wave of modern energy transformation, solar panels have gradually become a popular renewable energy solution. In this article, you will learn the basics of solar panels, how they work, their types, and their advantages.
How Solar Panels Work
Solar panels rely primarily on the photovoltaic effect to convert sunlight into electrical energy. When sunlight hits the silicon material on the panel, the energy of the photons causes electrons to break free from atoms, forming electron-hole pairs. The electric field inside the panel pushes these free electrons into the circuit, ultimately generating an electric current.
Related: How do solar panels work
Components
Solar panels are mainly composed of the following parts:
- Solar cells: usually made of monocrystalline silicon or polycrystalline silicon.
- Protective layer: used to prevent external factors (such as rain and dust) from affecting the battery.
- Backplane: provides structural support for the battery panel.
- Connector: used to connect the battery panel to the power grid or energy storage device.
Types of Solar Panels
Classification by material
Monocrystalline silicon solar panels: Made of monocrystalline silicon, they have the characteristics of high efficiency and low temperature coefficient, but the price is relatively high.
Polycrystalline silicon solar panels: Made of polycrystalline silicon, they have high efficiency and low price.
Amorphous silicon solar panels: Made of amorphous silicon, they are relatively low in price, but the efficiency is relatively high.
Classification by conversion method
Thin-film solar panels: Using thin-film technology, solar panels are made into thin films with small volume, lightweight, and good flexibility, and are suitable for flexible combinations.
Crystalline silicon solar panels: Made using traditional silicon wafer technology, they have high conversion efficiency and reliability, but have certain restrictions on size and shape.
Organic solar panels: Made using organic materials, they have low cost and can be made flexible and translucent, but they have low efficiency.
Advantages of solar panel power generation
1. Solar energy is inexhaustible and inexhaustible. the solar radiant energy received by the surface of the earth is enough to be 10.000 times the current global energy demand. As long as solar energy is installed in 4% of the world’s deserts, it can meet global needs. It is safe and reliable. Affected by the energy crisis and unstable fuel market.
2. Solar energy is available everywhere, no long-distance transportation is necessary to avoid the loss of long-distance transmission lines.
3. Solar power generation has no moving parts, it is not easy to be damaged, and the maintenance is simple.
4. It is not easy to produce polluting waste during the process of solar power generation, which is an ideal clean energy.
5. The solar power generation system has a short construction period and is convenient and flexible. The solar array can be added or reduced arbitrarily according to the increase or decrease of the load to avoid waste.
Advantages of ITEHIL Foldable Solar Panels
1. Versatility: portable solar panels can be adapted to different functions or activities. For example, solar panels can be used in fixed locations as well as mobile use.
2. High waterproof level: Most small and foldable portable solar panels are waterproof, but not all of them are waterproof, so they can be placed anywhere. Waterproof portable solar panels, such as the ITEHIL 100w 18v solar panel, are all-round waterproof. You can go to the ITEHIL website for details.
3. High efficiency: Many portable solar panels in the market are made of monocrystalline silicon, and there are few polycrystalline silicon and thin films because the photoelectric conversion rate of polycrystalline silicon solar panels and thin film solar panels is not as good as that of monocrystalline silicon solar panels.
4. Overcharge protection: Many portable solar panels have a charge controller, which will provide overcharge protection for the device you are charging. In addition, some of these charge controllers allow fast charging and other functions. Essentially, they control the flow rate of the battery current. If there is no charge controller, the device may be damaged. Therefore, when purchasing portable solar panels, be sure to choose a brand with a charge controller. Here we recommend ITEHIL 100w 18v solar panels (not only 100w but also larger ones).
5. Low maintenance cost: Because the portable solar panels are small in size, and they are foldable, and not always placed outside, you don't need to spend a lot of time and manpower to maintain them.
FAQ
How to deal with the temperature rise and ventilation problems of solar panels?
The output power of solar panels will decrease as the temperature rises. Ventilation and heat dissipation can improve the efficiency of power generation. The most commonly used method is natural wind ventilation.
Will solar panel power generation have electromagnetic radiation hazards to users?
Solar panels convert solar energy into electrical energy according to the principle of voltaic effect produced by light. There is no pollution and no radiation. Electronic devices such as inverters and power distribution cabinets have passed the EMC (electromagnetic compatibility) test, so there is no harm to the human body.
Is there a noise hazard in solar panel power generation?
The solar panel converts solar energy into electric energy without noise. The noise index of the inverter is not higher than 65 decibels, and there is no noise hazard.
What issues should be paid attention to in the fire protection and fire protection of household distributed solar panels?
It is forbidden to stack flammable and explosive materials near distributed solar panels. In the event of a fire, the loss of personnel and property will be immeasurable. In addition to basic fire safety measures, solar panels are also reminded to have self-detection and fire protection functions to reduce In addition to the possibility of fire, it is necessary to reserve fire protection and maintenance channels every 40 meters, and there must be an emergency DC system disconnect switch that is easy to operate.
The above is the little knowledge of solar panels, there is more to it! If you want to know more about solar panels, please continue to follow itehil.
