WAYIN: Your Premier Solar Panel Manufacturer
Rich Experience
We have been developing in the new energy industry, especially the solar energy industry, for more than ten years. We have a strong team that specializes in designing and developing green energy products, and constantly launches unique upgraded products on the market.
One Stop Solution
We provide one-stop solutions for customers in the new energy industry. Whether you need solar panels, inverters, batteries, home solar, industrial solar, or agricultural solar, our engineers and labs are here to help you research solutions, implement your ideas, and optimize your costs.
Professional Service Team
Our professional service team is committed to providing customers with professional, efficient and reliable services. We provide progress tracking at each stage according to the order to ensure customer interests and support customers in handling after-sales issues and market analysis strategies.
Fast Delivery
We have our own factories, warehouses and logistics centers, and can reasonably arrange production and shipment, even if you are an overseas partner. This helps you produce and ship new products as quickly as possible and update products in your store.
Type of Solar Panel
A solar panel is a device that converts sunlight into electricity by using photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light. The electrons flow through a circuit and produce direct current (DC) electricity, which can be used to power various devices or be stored in batteries. Solar panels are also known as solar cell panels, solar electric panels, or PV modules.
Solar panels are usually arranged in groups called arrays or systems. A photovoltaic system consists of one or more solar panels, an inverter that converts DC electricity to alternating current (AC) electricity, and sometimes other components such as controllers, meters, and trackers. A photovoltaic system can be used to provide electricity for off-grid applications, such as remote homes or cabins, or to feed electricity into the grid and earn credits or payments from the utility company. This is called a grid-connected photovoltaic system.
Solar panels collect clean renewable energy in the form of sunlight and convert that light into electricity which can then be used to provide power for electrical loads. Solar panels are comprised of several individual solar cells which are themselves composed of layers of silicon, phosphorous (which provides the negative charge), and boron (which provides the positive charge). Solar panels absorb the photons and in doing so initiate an electric current. The resulting energy generated from photons striking the surface of the solar panel allows electrons to be knocked out of their atomic orbits and released into the electric field generated by the solar cells which then pull these free electrons into a directional current. This entire process is known as the Photovoltaic Effect.
An average home has more than enough roof area for the necessary number of solar panels to produce enough solar electricrity to supply all of its power needs excess electricity generated goes onto the main power grid, paying off in electricity use at night.
The 4 Main Types of Solar Panels
Monocrystalline Solar Panels
Also known as single-crystal panels, these are made from a single pure silicon crystal that is cut into several wafers. Since they are made from pure silicon, they can be readily identified by their dark black color. The use of pure silicon also makes monocrystalline panels the most space-efficient and longest-lasting among all three solar panel types. However, this comes at a cost - a lot of silicon is wasted to produce one monocrystalline cell, sometimes reaching over 50%. This results in a hefty price tag.
Polycrystalline Solar Panels
As the name implies, these come from different silicon crystals instead of one. The silicon fragments are melted and poured into a square mold. This makes polycrystalline cells much more affordable since there is hardly any wastage, and gives them that characteristic square shape. However, this also makes them less efficient in terms of energy conversion and space, since their silicon purity and construction are lower than monocrystalline panels. They also have lower heat tolerance, which means they are less efficient in high-temperature environments.
Passivated Emitter and Rear Cell (PERC) Panels
PERC solar panels are an improvement of the traditional monocrystalline cell. This relatively new technology adds a passivation layer in the rear surface of the cell that enhances efficiency in several ways:
●It reflects light back into the cell, increasing the amount of solar radiation that gets absorbed.
●It reduces the natural tendency of electrons to recombine and inhibit the flow of electrons in the system.
●It allows greater wavelengths of light to be reflected. Light waves over 1,180nm can’t be absorbed by silicon wafers and simply pass through, so they end up heating the cell’s metal back sheet and reduce its efficiency. The passivation layer reflects these higher wavelengths and stops them from heating up the back sheet.
Thin-Film Solar Panels
Thin-film panels are characterized by very fine layers that are thin enough to be flexible. Each panel does not require a frame backing, making them lighter and easier to install. Unlike crystalline silicon panels that come in standardized sizes of 60, 72, and 96-cell counts, thin-film panels can come in different sizes to suit specific needs. However, they are less efficient than typical silicon solar panels.
Benefits of Residential Solar Panels
Solar Panels are Increasingly Affordable
Residential solar is more affordable than ever, especially with the extension of the federal residential solar tax credit. Taxpayers can claim a 30% tax credit on the cost of solar systems on their income taxes. There are also a number of different financing options to make purchasing solar systems easier and with less money upfront.
You Can Save Money by Going Solar
Solar offers great potential to save money on your monthly utility bill, and with utility bills trending upward, solar is likely to remain a good money-saving option for years to come. The amount you save depends upon how much electricity you consume, the size of your solar energy system, and how much power it is able to generate.
You Can Keep the Lights on When the Grid Goes Down
Generating your own solar power can give you the freedom to keep the lights on if there’s a disruption in power. Residential solar energy systems paired with battery storage - generally called solar-plus-storage systems - provide power regardless of the weather or the time of day without having to rely on backup power from the grid.
Solar Will Often Increase the Value of Your Home
Buying a solar energy system will likely increase your home’s value. A Berkeley National Laboratory study found that solar photovoltaic panels are viewed as upgrades, just like a renovated kitchen or a finished basement, and home buyers across the country have been willing to pay a premium for a home with an average-sized solar array.
Solar Systems Work in a Variety of Climates
Solar panels only need one thing to generate electricity -- sunshine! Even in the winter when there are fewer hours of daylight, there is still a sufficient amount to power the average American home. That makes solar viable even in Alaska with longer, colder winters.
Help the Environment and Help Us All
Solar power systems derive clean, pure energy from the sun. Installing solar panels on your home helps combat greenhouse gas emissions and reduces our collective dependence on fossil fuel. When fossil fuels are burned to produce electricity, they emit harmful gases that are the primary cause of air pollution and global climate change.
Solar Panel: Basic Solar Energy Applications
Solar Water Heating
Solar water heating is becoming an eco-friendly alternative to traditional water heaters. Active water systems in solar water heating include direct circulation systems and indirect circulation systems. Additionally, solar water heaters are commonly used in hotels, hospitals, guest houses, and more.
Solar Heating for Buildings
Space heating a building depends on whether or not a large building requires heat in its living spaces. For buildings with heat, solar heating needs to come from fans, ducts, radiators, or otherwise.
Solar-distillation
The solar-distillation method requires ample sunlight to transform saline water into distilled water. Once the solar radiation turns into heat, it creates purified water for cooling purposes. Distilled water is normally expensive in other electrical avenues, but solar distillation makes this type of electrical energy more cost-effective.
Solar-pumping
Solar pumping uses water to increase irrigation and power. This solar energy application is most efficient during the harvest season and warmer seasons when crops will require more water.
Solar Drying for Agriculture
Using solar energy to dry agricultural and animal products improve airflow and fruit quality, protecting sensitive agricultural products from harsh sunlight and preventing low moisture.
Solar Electric Power Generation
Photovoltaic (PV) cells generate electricity through direct sunlight. Solar electric power generation is most beneficial for irrigation, commercial-grid power systems, public transportation, and more.
Solar Green Houses
Solar greenhouses keep harmful external elements away from plants, bringing positive CO2 air inside instead. Glass or plastic also covers the greenhouse to maintain controlled indoor temperatures and provide an ideal growing environment for plants year-round.
Solar Outdoor Lighting System
Solar lighting systems can also generate adequate electricity for outdoor landscapes. Each solar outdoor lighting system comes with a rechargeable battery and can now operate throughout the night.
Main Components of a Solar Panel
Solar Cells
Solar cells are the building blocks of solar panels. Thousands of cells come together to form a solar panel. These Solar Cells are stringed together to make Solar Panels which involves soldering, encapsulating, mounting them on a metal frame, testing etc.
Solar Glass
Solar Glass is another important component of a solar panel. It is the outer most layer on the solar panel and has to be sturdy and shiny for better performance of the panel. The main function of solar glass is to protect the solar cells from harsh weather, dirt and dust.
EVA
The EVA sheet or the “ethylene vinyl acetate” is a highly transparent (plastic) layer used to encapsulate the cells. It provides laminated layering on top of the cells to hold them together. It should be durable as well as tolerant to withstand extreme temperatures and humidity.
Back Sheet
Backsheet is the rear-most layer of the panel providing both mechanical protection and electrical insulation. It is essentially a protective layer.
Aluminum Frame
The aluminum frame is also a crucial component as it provides structural strength to the panel. It is recommended to use a frame made of strong but lightweight material. It should be stiff and able to withstand extreme conditions like high wind and external forces. It generally comes in two makes - silver and anodised black.
Junction Box
A junction box is fixed at the backside of the panel. It is the central point where cables interconnect with the panels.
Interconnector
Interconnectors help solar panels connect with one another. These should be extremely weather-resistant and should enable secure connections.
Silicon Glue
Silicon is the most commonly used adhesive in a solar panel. Silicon creates strong bonds and is resistant to chemicals, moisture, and weather conditions. Hence silicon glue is used for solar panels.
Building the Solar Cells
The primary components of a solar panel are its solar cells. P-type or n-type solar cells mix crystalline silicon, gallium, or boron to create silicon ingot. When phosphorus is added to the mix, the cells can conduct electricity. The silicon ingot is then cut into thin sheets and coated with an anti-reflective layer. Then, narrow slits are cut in the cells to funnel the flow of electricity.
Solder Solar Cells Together to Create a Panel
After the phosphorus gives the silicon wafers their electrical charge, metal connectors link each solar cell in a process called soldering. The number of cells soldered together depends on how big the solar panel is manufactured. For reference, 60 cell-panels are standard size, and 72-cell panels are generally used for commercial projects.
Install a Back Sheet, Front Glass Layer, and Frame
Next, a thin glass sheet is installed on top of the solar cells to filter the sunshine into the solar cells. These parts are held together by ethylene vinyl acetate (EVA) glue. All these components are confined by a metal frame that latches onto mounting clamps on your roof.
Install the Junction Box
The junction box protects a solar panel's wiring from damage to keep the flow of electricity moving from the panel to its inverter, preventing electricity from reversing direction. This functionality is essential when a solar panel isn't producing electricity because that panel will try to consume energy instead. The junction box doesn't allow any reversal of electric flow, so your solar panels can function correctly.
Quality Testing
Each solar panel to hit the market is tested under Standard Test Conditions (STC) to ensure that the panels meet their projected outputs, efficiencies, and everything else the manufacturer promises in their technical specification sheet.
If your panels are tilted, you’re in luck: rainfall will actually clear away debris that's accumulated on them. However, during the dry season or extended periods without rain, it's important to clean them manually.
It is generally recommended that you perform solar panel cleaning between two and four times per year. While that might seem like a lot, the good news is that this doesn’t require much work. All you really need is a leaf blower or a quick spray with a garden hose, and your panels will be clean and in top condition.
In winter, you may need to clean your panels after a heavy snowfall. If you're using water to clear the snow away, make sure it's lukewarm. You can also use a squeegee with a long handle.
It is important to note that you should never use hot water when clearing snow off the panels. The panels are made of tempered glass, and the extreme temperature disparity between hot water and cold panels can crack them.
●Ground-Mounted Panels vs. Rooftop Panels - Is There a Maintenance Difference?
When it comes to maintenance, the only real difference between ground-mounted solar systems and rooftop solar systems is that ground panels are easier to access, and therefore easier to keep clean. If you notice a buildup of snow or other debris, you can simply sweep it off with a soft-bristled broom.
How to Choose a Solar Panel?
Solar Panel Cost
This is probably the first factor people consider when comparing solar panels. The solar panel cost is determined by different variables: the size (in Watts), the physical size, the brand, the quality of the materials, the durability (or warranty period) and any certifications the solar panel might have.
Solar Panel Quality
This takes into account how the panel is manufactured and the quality of the materials used to build the solar panel. There are different types of manufacturers producing panels that differ in quality, price, and efficiency. When choosing your solar panel supplier it is wise to check the companies’ reviews or history and see what experiences clients had with each of them.
Energy Efficiency
Solar panel efficiency is how much of the light the panel receives is converted into electrical energy and hence, how much power your system will generate. The more efficient, the better (and more expensive). It is not always the best choice to get the biggest and most efficient solar panel, since you might end up spending more money than you should to cover your energy needs.
Temperature Coefficient
This refers to the impact that heat has on a solar panel’s operational efficiency after installation. Since solar panel overheating accelerates their ageing, the lower the percentage per degree Celsius, the better.
Durability
Usually, solar panels have a 25 year warranty (as long as the company operates). If the manufacturer does not offer a long warranty period, you could suspect that their product is not very good and hence they don’t want to take any responsibility.
Size
This takes into account the physical size and the size in Watts. You should make sure to install a solar panel system that is big enough to power all your appliances, and also that you have the space required to install it. The physical size of the panel will vary depending on how powerful the system is (the more Watts, the bigger) and the type of solar cells used to build the panel.
Types of Solar Cells Used
There are different types of solar panels with different efficiencies. Monocrystalline silicon offers high efficiency and good heat tolerance characteristics with a small footprint. Polycrystalline (or multi-crystalline) silicon cell based solar panels are now the most popular choice in residential installs. There are also Amorphous (or thin-film) silicon cells, which use the least amount of silicon and are not very efficient. For an equivalent wattage, a crystalline panel will be smaller than an amorphous panel.
Our Warehouse
We have our own factories, warehouses and logistics centers, which enable us to produce and deliver new products to customers as quickly as possible and help customers develop larger markets.
Our Certificate
We are committed to the development and production of green energy-related products, and have obtained relevant certificates, such as CE certificates, and patent certificates, to provide customers with high-quality, reliable products.
Ultimate FAQ Guide to Solar Panel
Q: What is a solar panel simple definition?
Q: What exactly do solar panels do?
Q: What is the use of solar panel?
Q: What are the 3 types of solar panels?
Q: Are solar panels worth it?
Q: How long do solar panels last?
Q: What are cons of using solar panels?
Solar panels don't work for every roof.
Solar isn't ideal if you're about to move.
If your electricity costs are low, your solar savings will be too.
If you can't access financing, up-front solar costs can be intimidating.
Q: What is a disadvantage of using solar panels?
Q: Do solar panels need power?
Q: What's inside a solar panel?
Q: Why should I install solar panels?
Q: How many solar panels needed to power a house?
Q: How many solar panels do I need?
Q: Do solar panels need to be cleaned?
Q: Are solar panels a lot of maintenance?
Q: Will hail damage solar panels?
Q: Do solar panels work at night?
Q: How long does it take to install a solar panel?
Q: What happens to solar panels after they go bad?
Q: Do solar panels make a noise?
Q: Are solar panels cheaper than electricity?
Q: Can I install my own solar panels?
Q: How often do you have to clean your solar panels?
Q: Are solar panels waterproof?
We're well-known as one of the leading solar panel manufacturers and suppliers in China. Please rest assured to wholesale custom made solar panel from our factory. Good service and quality products are available.
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