GRD Tile Roof Mounting is designed with great suitability for installing framed and framless panels on the roof, which are applied to both commercial and residential roof system.
Innovative design, pre-assembled clamp and standard components make the installation simple to save your installation time and cost.
Different hooks are compatible with various tile roofs.
Color steel roof mountings is suitable for large area color steel roof, need to match aluminum alloy clamping hook respectively according to different types of color steel roof, which including standing seam roof, angle break type roof, buckle type roof, fixed part connection type roof, to achieve the most stable installation effect.
This kind of fixed way will not damage the waterproofing of the original building, and can be effectively combined with the original roof.
Standing Seam Roof Mounting is designed with exclusive clip lock kit for metal roof sheet with non-penetration solution.
Which makes the roof sheet be beyond rust, keep the roof intact and better water proof.
It eliminates the need for traditional L feet, just need bolt to fix, save labor time and reduce materials used in installations.
With GRD highly pre-assembled structure, can make the installation steps much easier.
Asbestos / Metal Roof Mountings
Asbestos / Metal Roof Mounting is designed with innovative rail, standard components and highly pre-assembled clamps, which make the installation to be simple with great flexibility.
Trapezoidal Roof Mountings GRD-SS04 / GRD-SS07
GRD-SS04 mountings kit and GRD-SS07 mountings kit are both mini rail sulutions, which are designed for trapezoidal shape metal sheet roof.
The mini Rail is unity of rail and hook, which can work as rail and hook.
It can be fixed on roof to hold solar panels directly without rails, which can save installation time, suitable for large-scale installation.
Solar mounting systems, it is used to fix solar panels to various surfaces such as solar rooftop mounting system, solar ground mounting system, BIPV waterproof carport, etc.
Solar mounting systems help hold solar panels or arrays in place and work as the support structure for the solar modules. Solar mounting systems are usually made of steel or aluminum supports that can hold solar panels in place under extreme loads from wind, snow and frost.
GRD solar rooftop mounting system includes Tile Roof Mountings, Color Steel Roof Mountings, Standing Seam Roof Mountings, Asbestos / Metal Roof Mountings, Trapezoidal Roof Mountings GRD-SS04 / GRD-SS07, Flat Roof Mountings, Asphalt Roof Mountings.
GRD BIPV waterproof carport is a derivative of GRD BIPV photovoltaic building integration, suitable for the installation of industrial and commercial photovoltaic modules, GRD BIPV waterproof carport has the function of traditional photovoltaic carport, effectively improve space utilization.
With the aluminum alloy mountings waterproof design, it will lower the maintenance cost and longer the system life.
We achieved good trust from customers because of our stable and excellent products, and we will try our best to become a world leading level of photovoltaic racking solutions supplier.
Solar PV (photovoltaic) systems are a popular way to generate clean, renewable energy from the sun. However, to ensure the optimal performance and longevity of a solar system, a reliable and robust mounting system is needed. The mounting system holds the solar panels in place and positions them at the correct angle to capture the maximum amount of sunlight. When choosing a solar PV mounting system, there are several factors to consider. Here are the top 5:
Type of surface: The type of surface the solar panels will be installed on will impact the choice of mounting system. For example, if the solar panels will be installed on a flat roof, a ballasted mounting system may be a good option. Ballasted systems use weights to keep the mounting structure in place, rather than penetrating the roof with bolts or screws. If the solar panels will be installed on the ground, a pile-driven system may be more appropriate, as it can be easily driven into the soil.
Load-bearing capacity: The mounting system needs to be able to support the weight of the solar panels, as well as any additional load, such as snow or wind. The load-bearing capacity of the mounting system should be able to withstand the most extreme weather conditions in the installation area. For example, if the area is prone to heavy snow, the mounting system should be designed to withstand the weight of the snow.
Orientation and tilt: The orientation and tilt of the solar panels are important factors to consider, as they impact the amount of sunlight the panels receive. In the Northern Hemisphere, solar panels should face south to receive the most sunlight, while in the Southern Hemisphere, they should face north. The tilt angle of the panels should also be adjusted based on the latitude of the installation site to ensure the panels receive optimal sunlight throughout the year.
Materials: The materials used to construct the mounting system should be durable, weather-resistant, and able to withstand the weight of the solar panels. Common materials used in solar mounting systems include aluminum, steel, and concrete. The materials should be selected based on the specific needs of the installation site, such as the local climate and weather conditions.
Installation and maintenance: The installation and maintenance of the solar PV mounting system should be done by qualified professionals. The installation process involves securing the mounting system to the roof or ground, connecting the panels to the mounting system, and wiring the system to the inverter and electrical grid. Proper maintenance is also important to ensure the longevity of the system and the safety of the people and property around it. The maintenance should include regular inspections of the mounting system and solar panels, as well as cleaning and repairs as needed.
In conclusion, choosing the right solar PV mounting system is crucial to the performance and longevity of a solar system. The type of surface, load-bearing capacity, orientation and tilt, materials, and installation and maintenance are all important factors to consider when choosing a mounting system. By taking the time to consider these factors and working with qualified professionals, a solar PV system can be installed safely and efficiently, providing clean and renewable energy for years to come.
A high quality solar mounting system design takes advantage of all the environmental factors in order to maximize energy output for the project owner’s energy usage requirements. The advantages of choosing the right solar mountings are:
Efficiency of the Solar System
The life of a solar PV system may be seriously affected by galvanic corrosion. Atmospheric conditions such as moisture and chlorides can cause serious structural failures in racking and mounting components. A solar panel efficiency is referred to as the fraction of sunlight energy that is converted into electricity. This has a direct bearing on what kind of mountings you use for your solar modules. The installer has to be careful in choosing the right material for solar mounting structures which is an important in lowering the total cost of ownership over the project term of 25 years.
Average Production / Yield
Photovoltaic mounting structure design is an important part of PV power plant design and its design principles. The conversion efficiency of a solar panel is directly related to the amount of direct solar irradiance that strikes the surface of a solar cell or panel. Apart from the effect of atmospheric attenuations, solar power absorption is also affected by the earth’s distance from the sun and the earth tilt angle with respect to the sun.
The durability of the System
Assessing solar mounting’s durability is critical as the equipment is expected to be exposed to extreme environmental conditions. When choosing the correct solar mountings, the following questions should be taken into consideration:
Will it be located near the corrosive sea air of a coastal area?
Can it handle the extreme heat of a desert?
Can it sustain the wind loading of that particular location?
Even if the environmental exposure is minimal, durability is still important due to the stresses imposed on the system over time.
Ease of Installation & Maintenance
A good mounting system should be modular in design to reduce installation time and cost. A pre-assembled mounting structure also decreases the risk of accidents to installers when they are operating on rooftops, carports. In such cases, they spend comparatively less time during installation and need fewer tools, so their exposure to the risk of injury and liability is reduced.
Solar power is growing faster than all other electricity sources in the U.S., representing 50% of the generation capacity installed in 2022. According to the latest Solar Market Insight Report, the U.S. installed 700,000 home solar systems last year, and the country now has enough solar capacity to meet the energy needs of 25 million homes. High-quality solar panels come with a 25-30 year product warranty, and homeowners paying high electric tariffs can achieve a payback period of less than six years.
One of the most important decisions when going solar is deciding where to install the photovoltaic (PV) array and inverter. Many homeowners choose roof-mounted systems, since they can take advantage of unused space. However, a solar carport is also a viable option: you get both a clean energy system and shaded parking areas in the same piece of land.
In simple terms, a solar carport is a canopy with photovoltaic panels that is installed above a parking area. Solar carports accomplish a dual function, providing a roof for your vehicles while generating electricity for your home. If you own an electric vehicle, a solar carport can also be combined with an EV charging station.
Solar carports work just like ground-mounted PV systems, since the racking structure is anchored directly to the ground in both cases. However, solar carports use a taller structure than ground mounting systems, since they must provide enough space to park vehicles.
Solar Carport vs. Traditional Solar Installation
Traditional solar installations take advantage of existing roof areas, and their racking system is attached directly to your roof structure. On the other hand, a solar carport is an independent structure anchored directly to the ground, which generates electricity while acting as a roof for your vehicles. Each type of system has advantages and disadvantages.
Benefits of a Solar Carport
A solar carport is slightly more expensive than a rooftop PV system of the same capacity, since you need a dedicated structure. However, solar carports also offer several benefits.
You can convert unproductive parking space into a renewable energy system.
Your vehicle is covered from rainfall, snow and UV rays.
Solar panels and inverters can be accessed more easily for cleaning, inspections and maintenance.
A solar carport can be designed with an orientation that maximizes the sunlight reaching your PV modules, increasing their electricity output.
The gel battery was invented in 1957. Gel batteries are one of two sealed lead acid batteries, the other being an AGM battery. Sealed lead acid batteries are distinct from other lead acid batteries in that they are maintenance-free.
Gel batteries are a maintenance-free alternative to flooded cell deep cycle batteries. They contain a silica-based gel in which battery electrolytes are suspended, allowing electrons to flow freely between plates. The nice thing about spill-proof gel batteries is that they don't leak even if the battery case is broken. These batteries also fight against corrosion and prevent overcharging.
The combination of Gel electrolyte along with highly porous glass micro fiber separator ensure reducing short circuit, higher capacity, longer service life,leak proof operation in any position. Brava advanced GEL Lead acid batteries approved with UL1989, CE, IEC60896, IEC61427, IEC60254, IEC60079 certificates provide maintenance-free and deep cycle performance for UPS, solar/wind, telecommunications, cathodic protection, navigation aids, remote monitoring, RV/marine, golf cart, switchgear, cellular radio etc.
gel battery applications
What's a gel battery?
A gel battery is a dry battery since it doesn't use a liquid electrolyte. In a gel battery, the electrolyte is frozen with silica gel. This keeps the electrolyte inside the battery, preventing it from evaporating or spilling.
This design stabilizes the battery and gives it a low self-discharge. This is a handy feature for batteries that lie idle for long periods.
10 Advantages of a gel battery
Maintenance-free. Because the batteries are comprised of gel instead of liquid, there is little to no maintenance to keep the battery working properly.
6-year lifespan.
Better performance until its end of life then performance drops off sharply.
You can install it sideways since it's spill-proof.Gel batteries have the advantage of being able to be used in virtually any position, because they don’t leak and are generally maintenance free. This greatly increases the number of applications gel batteries can be used for.
Better heat tolerance.
No Leaks: Even though wet cell batteries are sealed in a plastic encasement there is still the chance that it will leak. Gel batteries are also sealed but with a valve that removes excess pressure. This means that between the gel substance and the removal of pressure, there is nowhere for the mixture to go.
Minimal Risk: When damage occurs to a traditional lead-acid battery you are faced with a massive and dangerous clean up (not to mention the impact on anything the battery acid may come into contact with during the process). Gel batteries will not leak out if the casing becomes damaged, so there is a reduced risk of harm coming to the equipment and clean up hazards.
Vibration Resistant: One of the biggest complaints with wet cell batteries is that they are very susceptible to extreme vibration and other impacts. Gel batteries absorb the impact and vibrations, making them great batteries for items such as four wheelers.
No Fumes: Because these batteries are comprised of a gel substance there are minimal fumes created as a result of use. This means that there is a reduced need for ventilation which increases the potential applications gel batteries can be used for, as well as making them easier to charge anywhere.
Resistant To Discharge Death: When using a wet cell battery it’s important that you don’t allow the battery to discharge too much. Otherwise, it will never recharge. Gel cell batteries aren’t that way. They are deep cycle batteries which means that they can discharge more and still be recharged like new.
Disadvantages of a gel battery
You need to store it in a charged condition although this is less critical than as for a flooded lead acid battery.
It requires some ventilation as it releases gas when pressure builds up.
Sensitive to overcharging though this is less so than AGM batteries.
AGM is cheaper and can handle higher loads.
How Does a gel battery Work?
A gel battery (often referred to as a gel cell battery) is a lead-acid battery that is valve regulated. When the electrolyte is mixed with sulphuric acid and silica, it becomes a relatively stationary gel substance.
This gel mixture allows the battery to utilize the acid and electrolyte in the same way it would with a traditional lead-acid battery, just without the added maintenance.
When should you choose a gel battery?
Gel batteries are an alternative to flooded lead acid. They're suited for a battery backup system or an off-grid home. If you don't mind the extra expense, a gel battery is a better option if you're looking into lead acid batteries. This is because you won't have to worry about maintenance.
Are gel batteries better than AGM batteries?
Absorbent Glass Mat (AGM) batteries are the other sealed lead acid battery. How do gel batteries compare to AGM batteries?
For starters, gel batteries can be more expensive. They also need specific chargers to prevent overcharging. Not using these chargers reduces the batteries lifespan.
They're also don't work as well with appliances that need a higher current because they have a higher internal resistance.
On the other hand, gel batteries have a longer lifespan. This is because:
They hold more acid because of their design.
They have a better temperature tolerance. They have improved heat transfer to the outside. The gel moves heat, whereas the absorbent glass mat of the AGM acts as an insulator.
They also maintain their performance over a longer period. AGM batteries gradually fade as they get older.
Feature
Gel batteries
AGM batteries
Cost
Expensive compared to AGM batteries
Less expensive compared to gel batteries
Charge
The battery can be ruined even if it is brand new if you make one charging mistake, like overcharging or using a tapering charger
Hold their charge well and charge quickly
Technology
Gel paste suspends the electrolyte in the battery case of a gel battery
Internally, the electrolyte is wicked into a glass matt to prevent leakage
Life expectancy
You can fully discharge gel batteries up to 90% and still get a much longer cycle life than you would with AGM batteries
Discharging your AGM battery more than 50% and up to 70% is okay, but doing so frequently will significantly shorten the battery’s cycle life
Are gel batteries better than flooded batteries?
A flooded lead acid battery is a wet battery since it uses a liquid electrolyte. Unlike a gel battery, a flooded lead acid battery needs maintenance by topping up the water in the battery every 1-3 months.
Gel batteries are the safer lead acid batteries because they release less hydrogen gas from their vent valves. This makes them safer to install where there is limited ventilation. Hydrogen release or gassing is a minor safety concern with flooded lead acid batteries.
Because of how they're made, they can be oriented in any way. They can be stacked pancake-style which may improve cycle life. Flooded lead acid batteries are kept upright to avoid acid spills.
What Is A Deep Cycle Gel Battery?
A deep cycle battery is a type of battery that can use to provide power for extended periods.
It stores more energy than conventional batteries, and it’s able to withstand the repeated charging and discharging cycles necessary in solar installations or other renewable energy systems.
Deep cycle gel batteries are among the most popular types of deep-cycle batteries on the market today because they’re designed with safety in mind while still providing high performance.
What Is The Difference Between A Deep Cycle Battery And A Gel Battery?
It is not uncommon for people to confuse deep cycle batteries and gel batteries. They are very different in many ways, but the most important distinction is that a deep cycle battery can be used regularly while a gel battery cannot.
So this is the big difference that I have shared with you between the deep cycle and gel batteries. Furthermore, the difference is;
Deep cycle batteries are made of lead-acid cells, which produce an electric current when they react with sulfuric acid and water.
A deep cycle battery is typically used in a boat or RV. It can be discharged more without damaging it than many other batteries, but it’s typically heavier and less expensive.
While A gel battery has additives that help prevent the electrolyte from leaking out of the cell when it’s overcharged.
This makes them safer to use in certain situations, like on motorcycles or scooters, often exposed to extreme temperatures.
Gel batteries also cost more than most types of lead-acid batteries, which means you’ll usually only see them in higher-end products.
Knowing this information will help you find the best type of battery for your needs!
How Long Do Deep-Cycle Gel Batteries Last?
When peoples buy an expensive battery, they want the time of lasting the batteries should extend. However, you can use deep cycle batteries for over 6 years or more if you charge properly and care about it.
It is totally up to you how you are keeping this battery to taking care of and whats your charging routine is to charge your battery.
Because, as you know, if you charge the battery over time, the battery may damage.
How Do You Revive A Dead Gel Battery?
Because gel batteries are sealed, unlike fluid-based batteries, the cells cannot access them.
The best technique to repair and recover a gel battery is fully discharged it and then slowly charge it again.
Are Gel Batteries Worth It?
Gel batteries are worthwhile since their performance is maintained throughout their lifespan. Its build custom, according to Battery University, produces a dome-shaped curve in its power output. There is no declining voltage, which is a common problem with other batteries.
Get a Gel Battery For All Your Needs
Gel batteries offer the ability to save energy for the benefit of future generations. As the supply of electricity decreases, batteries become more important to human life as the population grows.
We recommend using a gel battery because:
There will be no need to do routine maintenance.
There will be no spills, providing no considerable and hazardous risk because you will not come into contact with the acid.
Because of the low amount of corrosion, gel batteries can be used with sensitive electronic equipment.
Gel batteries are extremely durable and vibration resistant.
Because there is a reduced possibility of sulfuric acid burns, it is very safe.
The battery will last far longer than a lead-acid battery for the same amount of use because of its high lifespan.
So, what is the deal with all black-solar panels? Most solar panel manufacturing companies now have an all-black model, which is becoming more and more popular with customers. However, many people get confused about the difference between the two, and don’t know which type of panel is better for their home.
MONOCRYSTALLINE VS. POLYCRYSTALLINE
Before discussing all-black panels, we first must differentiate between monocrystalline and polycrystalline panels. In summary, polycrystalline panels are less efficient because some crystal formation occurs when they are being made. These crystals make it harder for electrons to flow through the cells. On the other hand, a lack of crystal formation in monocrystalline panels allows fir easy electron flow, making these panels more efficient. Because they are more efficient, they are also more expensive. Additionally, monocrystalline panels are darker in color, while polycrystalline panels have the traditional blue color.
Here is the visual difference between the two: monocrystalline is on the left and polycrystalline is on the right.
BLACK SHEETS AND FRAMES
There is a difference between a traditional dark-colored monocrystalline panel and these all-black models that we are talking about. Regular monocrystalline panels still have a white sheet and frame, while all-black panels have black sheets and frame. Below you can see the difference. The picture on the left shows traditional monocrystalline panels up close. The photo on the right shows a whole array panels with black sheets.
EFFICIENCY COMPARISON
Although the black sheets and frame gives these black panels a sleeker look, this does slightly decrease efficiency. All-black panels not only heat up more quickly, but also allow for less light trapping. Both factors decrease efficiency. On panels with white sheets, unused light is reflected then trapped to be used by the solar cell. This increases the cell’s current and makes cells with white sheet slightly more efficient. However, overall, all black panels are only 0.5% less efficient, so it is not a huge difference.
THE ROLE OF AESTHETICS
So, as it turns out, the major difference between all black panels and traditional, white-framed ones is simply the aesthetic. Many customers are concerned about how the solar array will look on their house, and for that reason they decide on the all-black panels. So, if you want a sleeker aesthetic from your array, the choice seems to be all-black array, as long as you are okay with sacrificing a little efficiency. However, if you want the most efficient and best deal for your investment, then traditional, white-framed panels are the way to go. All our most popular manufacturers sell both all-black and traditional models!
What is HJT technology? Heterojunction technology (HJT) is a N-type bifacial solar cell technology, by leveraging N-type monocrystalline silicon as a substratum and depositing silicon-based thin films with different characteristics and transparent conductive films on the front and rear surfaces respectively.
Combining with the benefits of crystalline silicon and amorphous silicon thin-fim technologies, HJT technology has excellent photoabsorption and passivation effects, as well as outstanding efficiency and performance. HJT panels are one of the technologies to improve the conversion rate and power output to the highest level, also represent the trend of the new generation of solar cell platform technology.
Why choose solar panels with HJT technology?
1. High conversion efficiency:
The homojunction cell type used in PERC technology uses crystalline silicon for the PN junction. Compared to conventional crystalline silicon solar cells using PERC technology, HJT solar panels are unique. HJT is a junction composed of two unique semiconductor substances.
It functions similarly to conventional solar cells, but the HJT cell is more effective at converting sunlight into electricity thanks to a thin layer of amorphous silicon.Currently, the average PERC efficiency of many PV manufacturers is over 22%, and the average HJT efficiency is over 22.5%.
In addition, HJT solar cells are made to have a module bifaciality of over 93%, which means they can produce electricity from both sides of the module. For instance, the Swiss company Ecosolifer has created a commercial bifacial HJT solar cell with a 24.1% efficiency.
2.Low temperature coefficient:
Compared to conventional crystalline silicon cells, thin-film solar energy produced by HJT solar panels has a lower temperature coefficient. At temperatures below 200 °C, HJT solar panels have an efficiency of over 23%.
Additionally, they have a low temperature coefficient of -0.2%/K, which boosts the efficiency and output of photovoltaic systems while lowering their cost.
This indicates that HJT solar panels can function effectively even in warm environments, enabling them to generate more energy in hotter environments. As a result, large-scale power generation using these high-performance cells is made possible.
3. Fewer production steps:
HJT solar panels are produced with fewer process stages than conventional solar panels made with PERC technology, which facilitates a smoother production process. HJT solar panels require only 8 processes for the production of solar photovoltaic modules as opposed to the roughly 13 processes needed by PERC technology. As a result, it is becoming more financially feasible, which is encouraging for the development of solar energy. This is because the price of the required equipment is continuing to drop.
4. Long service life:
HJT solar panels are renowned for their toughness, which means they last longer and require less upkeep, which lowers costs. The typical lifespan of solar panels is 25 years. However, under normal circumstances, HJT solar panels can last up to 30 years.
This is due to the protective barrier function of the amorphous silicon layer, which slows degradation and prevents the emergence of the PID effect. HJT batteries have a longer life as a result.
What is the HJT technology’s development trend?
The market’s most well-liked and desirable solar cell technology is PERC technology. It is regarded as the least complicated option because upgrading the production line only necessitates the addition of new machinery. The production of HJT solar panels, however, necessitates the acquisition of an entirely different set of production tools.
When it comes to solar cell development, HJT solar panels are far more effective and sophisticated than solar panels using PERC technology. Because of the high power generation efficiency of HJT solar panels, cell manufacturers and suppliers are becoming more and more interested in them. The future market will determine customer preferences, which will be a major factor in the development of HJT solar panels.
The solar industry is undergoing a revolution thanks to HJT (Heterojunction) technology, which increases energy output while also improving efficiency. To get around the drawbacks of conventional solar panels, HJT solar panels combine amorphous and crystalline silicon layers. This makes a variety of solar energy applications possible.
How many kWh of electricity a 25KW solar power system can produce in a day depends on many factors, including light intensity, temperature, season, and shade. The following will introduce in detail the calculation formula of the standard daily power generation of a 25KW solar power system and the impact under different circumstances. In different regions and different seasons, the sunlight duration and the conversion efficiency of solar panels will change, so the daily power generation will also vary.
1. The influence of light intensity on power generation
Light intensity is one of the key factors affecting the power generation of solar power system. Light intensity refers to the light intensity per unit area, usually in watts per square meter (W/m²).
Daily power generation (kWh) = 25kW x light intensity (W/m²) x power generation efficiency x running time (hours)
If the light intensity of a 25KW solar power system is 1000W/m², the operating time is 8 hours, and the power generation efficiency is 15%.
Temperature is also one of the factors that affect the power generation of solar system. When the temperature rises, the power generation efficiency of solar cells will decrease, thereby affecting the power generation of solar system. Generally speaking, when the temperature increases by 1°C, the power generation of solar system will decrease by 0.4-0.5%.
Daily power generation (kWh) = 25kW x light intensity (W/m²) x power generation efficiency x running time (hours) x (1-0.004 x (temperature-25))
If the light intensity of a 25KW solar power system is 1000W/m², the operating time is 8 hours, the power generation efficiency is 15%, and the temperature is 25°C.
It can be seen that temperature has a significant impact on the power generation of solar power system.
3. Seasonal influence on power generation
Seasons also have an impact on the power generation of solar power system. Generally speaking, the higher of light intensity in summer, the power generation will increase accordingly. While the lower light intensity in winter, the power generation will decrease accordingly.
Daily power generation (kWh) = 25kW x light intensity (W/m²) x power generation efficiency x running time (hours) x seasonal coefficient
The seasonal coefficient is generally between 0.8-1.2. For example, when the light intensity is 800W/m², the operating time is 8 hours, and the power generation efficiency is 15%, the seasonal coefficient is 1.2 in summer and 0.8 in winter.
Daily power generation in summer (kWh) = 25kW × 800W/m² × 15% × 8h × 1.2 = 23.04kWh
Daily power generation in winter (kWh) = 25kW × 800W/m² × 15% × 8h × 0.8 = 15.36kWh
It can be seen that seasonal factors also have a greater impact on the power generation.
4. The impact of shadow occlusion on power generation
If the photovoltaic power plant is blocked by shadows, its power generation will decrease accordingly. Shading will affect the power generation efficiency of some solar cells, thereby affecting the overall power generation.
Daily power generation (kWh) = 25kW x light intensity (W/m²) x power generation efficiency x running time (hours) x shading factor
Assume that the shading coefficient of the solar system is 0.9, the light intensity is 1000W/m², the running time is 8 hours, and the power generation efficiency is 15%.
It can be seen that even if only a part of the photovoltaic cell is shaded, its power generation will be affected.
According to the above, the standard daily power generation of a 25KW solar power system can reach 30-35kWh under ideal conditions. However, the actual situation is affected by many factors, so the power generation may be reduced. For example, if it is cloudy or the temperature is too high, the power generation may be reduced accordingly. Therefore, in order to improve the power generation efficiency of solar power system, it is necessary to avoid shading as much as possible, and to plan well in terms of site selection and components.
Select your solar power system from here: https://www.higonsolar.com/solar-solution
The average solar buyer probably is not paying attention to whether solar panels are made with p-type or n-type solar cells. But since you know there has N-type and N-type solar panel, you may start wondering what exactly difference between them and how they may affect solar panel buying in the future. A conventional crystalline silicon (c-Si) solar cell is a silicon wafer doped with various chemicals to encourage power production. The main difference between p-type and n-type solar cells is the number of electrons. A p-type cell usually dopes its silicon wafer with boron, which has one less electron than silicon (making the cell positively charged). An n-type cell is doped with phosphorus, which has one more electron than silicon (making the cell negatively charged).
Compared with P-type polycrystalline silicon wafers, the technical performance advantages of N-type monocrystalline silicon wafers are very firm：
N-type cells/modules unaffected by boron-oxygen-related photodegradation；
N-type substrates are more tolerant of common metallic impurities such as iron；
N-type silicon wafer-based cells allow for bifacial cell designs that can absorb backside illumination to produce higher power；
It is also worth noting that N-type monocrystalline silicon wafers provide the substrate for a truly high-efficiency cell structure.
What is the future of N-type and P-type?
Looking ahead, it is more difficult to improve the efficiency of PERC cells,and the N-type technology with higher efficiency, lower attenuation rate and better low-light performance is recognized as the next generation photovoltaic cell technology. As far as the specific technical route is concerned, the three cell technologies of TOPCon (tunneling oxide passivation contact), HJT (intrinsic thin film heterojunction) and IBC (interdigital back contact) are widely sought after. Among them, TOPCon and HJT technology are the focus of industrial investment and market attention.
Considering the cost, TOPCon is one step ahead. It is reported that the theoretical maximum efficiency of TOPCon can reach 27.1% (single-sided) / 28.7% (double-sided). The advantage of TOPCon is that the production line is compatible with the existing PERC production line, which has also become the preferred iteration technology for large PERC capacity producers. With mass production, TOPCon companies claim that the cost of battery modules is expected to be equal to that of PERC within a year, and the cost of BOS will be significantly reduced.
According to the forecast of CPIA, in 2030, the market share of N-type batteries may reach about 56%, and the prospects are very broad.
