144 Poly Half cut Cell 335-355W solar panel. 144 cell solar panel * KYOKUSHO.COM

4 Poly Half cut Cell 335-355W solar panel

System voltage Max 1000VDC High cell efficiency PV solar panel with quality silicon material for long term output stability and reliability Unique frame design with high mechanical strength for easy Installation

310W Poly solar panels for solar power system

260W-285W 60 Cells Poly solar panel

120Cell Poly Half-cut Cell solar panel high efficiency

Excellent Performances During Low Solar Radiation Guaranteed Positive Tolerance 0 to 3% For Each Module 25 Year Linear Power Guarantee

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Hefei Sunway Power Co.,Ltd. located in APEC High-Tech Industrial Park, Hefei National Hi-Tech Industrial Development Zone, is a professional and high-tech enterprise that engaged in wind generation, photovoltaic system and other renewable energy RD, manufacturing and marketing.

Sunway power main products are PV solar system, portable solar system, Solar panels, MPPT solar and wind controller series, PV and wind system controller series, solar inverter. Our products had many intellectual property, and gained 12 national patents, software copyright certificate, passed the testing from national testing organization and CE Certification Institution. Also we have registered brand successfully. Our company has been rated Hi-tech Enterprise and gained ISO-9001certificate since August, 2011 year.

Our unique design and superior performance win highly praise and trust from our clients. We supply products for wind turbine manufactures with so many years, export to developed countries including Germany, Italy, England, Russia, Australia, USA, Canada, Spain, as well as Middle East and Southeast Asia.

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No 767 Yulan Road, National High-Tech Industrial Development Zone, Hefei City, Anhui Pro., P.R of China
mob/whatsapp/wechat: 008618605560996
email: sales@sunway-power.com
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Advantages of Half-Cell Solar Modules

The worldwide solar market is continuously growing, and new trends are quickly becoming mainstream. Half-cell technology was a revolution in the solar game. According to statistics, there will be an increase in the half-cell solar module market share to 40% by 2028. To make everything clear, let’s discover what it is and find out the benefits it provides.

What is it?

Half-cell solar panels are exactly what their name suggests – traditional solar cells that have been cut in half with a laser cutter. In contrast to the standard modules, which contain 60 or 72 cells, a half-cell module doubles the number of cells to 120 or 144 cells per module. It has the same size as a standard cell module but with half-cut cells. The technology of doubling cells creates more opportunities to grab solar energy from the sunlight and send it into the inverter.

Advantages of half-cell solar modules

Using half-cut cells in photovoltaic solar panels can increase solar energy output.compared to traditional solar panels, a half-cut solar module provides many benefits. Let’s outline some of the most important.

Half-cut cells can help solar modules to perform better by improving efficiency, thereby boosting energy output. They accomplish this in the following ways:

Solar module characteristics

In conventional solar cells, the electrical current transport causes some power loss during the conversion of sunlight to electricity. Resistive losses are minimized due to the lower current flowing through the solar module.

Improved low-light performance

Shade and low-light conditions have no impact on half-cut cell photovoltaic solar modules, compared to traditional solar panels. The main reason is a minor variation in the wiring system of half-cell solar modules.Half-cut solar cells are connected in sequence, much like normal solar cells. They have doubled cells and cell rows. However, if a single row of the module shades is, the solar panel loses less power since only a sixth of the total module energy production is affected.

In addition to having a higher energy output, half-cell modules are more reliable due to their long-life performance. They are less sensitive to micro-cracks thanks to their compact design.With these advantages, property owners who select half-cell modules could see a faster return on investment. They are a far more realistic choice in areas where space is restricted, and shade or low light conditions are an issue.LA Solar delivers half-cell modules with the most rigorous certifications and the strongest guarantees in the market. We use only the highest quality materials and equipment throughout the production process. Each of produced modules is certified according to international standards and undergoes numerous examinations. Our company guarantees the superior quality of half-cell modules and provides a 25-year warranty for efficiency.

LA Solar – The best choice for your business.

06.10.2020 Solar energy: what you need to know? Modern systems need to adapt quickly to markets, technologies, and current requirements. This field is undergoing enormous changes, that are connected with the automation of production, process control, and the Rapid development of information technologies.

19.06.2021 RENWEX 2021 International Forum. Exhibition LA Solar kindly invites everyone to attend the RENWEX 2021 “Renewable Energy and Electric Vehicles” International Forum. Exhibition on June 22-24, where the latest generation solar equipment and innovative electric vehicles will be presented.

14.07.2021 UL CERTIFICATION From now on we kindly inform you that LA Solar has successfully passed one more essential testing. the Underwriters Laboratories (UL) certification and all of the produced products are reliable and efficient. Our company improve warranty for the whole production

24.09.2021 Which One to Choose? The Most Common Renewable Energy Type Which is the most effective energy source for houses? Let’s delve deeper and compare solar module types to see which one best fits you. We first need to cover our basis. Let’s go to find out the best one!

12.10.2021 Going Wholly Green and Solar. Is it Possible in LA? Depending on the state that you are in, you can decide which is the best type of system to pick. That’s one of the benefits of going solar in Los Angeles. They are both environmentally friendly, you can also consider the price difference.

07.11.2021 First Armenian Manufactured All-Black Solar Modules! Soon! Being the first local manufacturer of monocrystalline panels in Armenia, LA Solar Factory offers its consumers the most efficient solar panels in the field of solar energy.

25.11.2021 Advantages of PERC Cell Technology PERC technology is leading both in the world and in the local Armenian market. Armenian-made solar panels are manufactured according to international standards, standing out due to their high efficiency and competitive prices.

22.09.2022 Which type of solar panel is best for industrial use? Solar panels have already entered the lives of people living in a rapidly changing world. They have become an integral part of both people’s homes and businesses, which allows first of all to zero out the significant part of household electricity costs

29.09.2022 What is the highest efficiency solar panel? Let’s talk about some solar panels and the highest efficiency of solar panels. There are many companies in the field dealing with solar power plants and systems

06.10.2022 Is it harder to sell a house with solar panels? The main advantage of a house with solar panels is first of all significant cost savings. Solar energy is environmentally friendly, unlimited and does not harm the environment.

20.10.2022 How Do Solar Panels Lower Your Electric Bill? A modern person today is looking for solutions that will significantly simplify everyday life and reduce costs. Thanks to solar panels, it is possible to save significant amounts of money, and direct the saved funds to cover other needs

25.01.2023 LA Solar is participating in the flagship solar industry event The company LA Solar is participating for the first time in the flagship solar industry event, taking place February 14-16 at the Long Beach Convention Center in CA. We will be showcasing our high-quality solar equipment at booth number 577

21.02.2023 LA SOLAR PARTICIPATED IN THE INTERSOLAR GLOBAL EXHIBITION EXPO IN THE USA LA SOLAR, a company engaged in producing and exporting solar modules operating in the Alliance free economic zone, presented its services and products at one of the world’s leading expo exhibitions

27.06.2023 How do solar panels work? Are you curious about how solar panels work and how they’re able to generate electricity from the sun? Look no further! In this blog post, we’ll take a closer look at the inner workings of solar panels and explore the science behind their energy production

Aptos DNA-144-BF26-440W 440W Black On Black 144 Half-cell Mono Solar Panel

This line of modules is the direct result of over three decades of design, manufacturing and use. Attending to every detail in the design and manufacture of our products, our process controls and testing methods have optimized module life and electrical energy production.

Aptos Solar’s Specification

Model	10J
Series	DNA 144 Bifacial
Manufacturer	Aptos

Specification	Data
Cell Type	Mono-crystalline
Cell Arrangement	–
Dimensions	2095 X 1039 X 35mm
Weight	53.13lbs.(24.1kg)
Front / Back Glass	3.2mm, anti-reflection coating, high transmission, low iron,tempered
Frame	Anodized aluminium alloy
J-Box	IP68
Cable	4mm2 (EU)12AWG,39.37in.(1200mm)
Cable Length (Including Connector)	–

Nominal Max. Power (Pmax)	440 W
Opt. Operating Voltage (Vmp)	49.9 V
Opt. Operating Current (Imp)	11.33 A
Open Circuit Voltage (Voc)	41.0 V
Short Circuit Current (Isc)	10.74 A

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Our DNA Split-cell Series impressively combines advanced technologies to maximize performance. Produce up to 30% more energy with the bi-facial rear side generation. Our patented DNA, Dual Nano Absorber, technology allows for panel to harvest energy from all directions and operate exceptionally in high heat temperatures.

High reliabilityCell interconnections and diode placement use well-established industry practice and are field-proven to provide excellent reliability.

Produce up to 30% more energy with rear-side generation Advanced split cell technology with 9 ultra-thin busbars allows for less resistance and more photon capture Ideal solution for applications affected by shading

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Terms Conditions

US Solar Supplier Shipping Policy At USSolarSupplier, we recognize the importance of receiving your solar products promptly and efficiently. Our goal is to provide a seamless, customer-friendly experience throughout the entire shipping process. To help you better understand our shipping practices, please review our comprehensive shipping policy below.

Shipping Costs and Carriers Shipping costs are calculated based on the weight and dimensions of the product(s) in your order. We utilize FedEx or UPS for ground shipments, and trusted freight carriers for larger shipments. All of our shipments are insured for your protection. For logistical reasons, all shipments are made using our company’s shipping account.

Estimated Delivery Time For standard delivery, most orders will arrive at their destination within 7 to 10 business days. Please note that these estimates are subject to change depending on carrier’s operational capabilities and other factors beyond our control.

Inspecting Shipments Upon Delivery When your order arrives, it’s of utmost importance that you meticulously inspect your shipment upon delivery. If delivered by a freight truck, you should reach out to the freight carrier using the phone number given on the carrier’s bill. By signing the delivery receipt without noting any potential damages, issues, or if you’re unable to inspect the delivery, you are legally confirming that you’ve received the shipment in good condition. Please be advised that USSolarSupplier can’t be held responsible for any damages or missing items not listed on the delivery receipt. If you decide to accept a package that’s visibly damaged, make sure to note on the delivery receipt that you’re signing for a damaged package. However, please note that USSolarSupplier can’t be held responsible for any damages or missing items accepted via signature delivery. After receiving your shipment, it is crucial that you carefully count and inspect the contents before acknowledging delivery. In the unlikely event that your shipment has been damaged during transit, please take photos of the materials and note the damage on the Bill of Lading (BOL). If there is major visible damage, you should reject the delivery outright. In case of damages, it is required that you notify US Solar Supplier by email (kyle@ussolarsupplier.com) within 24 hours of delivery. Please include the signed BOL, as well as any additional photos or supporting documents. If the BOL is not properly noted at the time of delivery, US Solar Supplier cannot be held responsible for additional costs for replacement materials. All returned items are subject to inspection and approval.

Expedited Shipments We strive to ship expedited orders on the same day we receive them. However, orders placed after 1:00 PM Eastern Time (10:00 AM Pacific Standard Time) may not ship the same day. Expedited orders placed over the weekend or on major holidays will be processed and shipped on the following business day. Please note that carriers do not deliver on weekends or major holidays, with the exception of Saturday delivery. If you require Saturday delivery, please contact our sales department at 1 (800) 230-7004 for assistance.

Out of Stock and Backordered Items Occasionally, an item may have a lead time or be backordered after your order is received. If there is a lead time associated with your order, we will contact you to confirm whether this lead time aligns with your project deadline.

Please include this information in the order notes when placing your order, and we will do our best to accommodate your needs. For other special requirements, please call our sales department at 1 (800) 230-7004 before placing your order.

Multiple Shipments

We warehouse our products across the United States, and occasionally, we may need to ship your order from two or more different locations. In such cases, we will never charge you more for shipping than your original payment. If you require your order to arrive in a single shipment, please contact our sales department when placing your order at 1 (800) 230-7004 or add this information to the Order Комментарии и мнения владельцев box. To consolidate certain orders, we may need to bring the products into our Vista office and combine them before shipping, which may result in an additional 3-5 day lead time and additional shipping charges.

International Shipments

Currently, USSolarSupplier only ships within the United States and does not offer international shipping.

Shipping on Your FedEx or UPS Account

USSolarSupplier’s policy requires regular parcel orders (ground, air/express shipments, non-freight) to be shipped on our UPS account. We appreciate your understanding.

Freight Shipments

Certain products on USSolarSupplier must be shipped freight due to their weight, dimensions, or classification as hazardous materials. For more information, please refer to our Claims Returns Policy and Refund Policy.

Freight Shipment Products include, but are not limited to:

Large solar panels (over 90 watts in most cases)
Large Inverters (over 1kW)
Rails longer than 9 feet (108)
Flooded lead-acid batteries
Deep cycle batteries
Lithium Iron Phosphate batteries (LiFeP04)

Freight Options

When placing an order that requires freight shipping, you will need the following information:

Residential freight shipments are more expensive than commercial zone shipments due to accessibility and established routes. If your freight shipment weighs over 100 pounds and you lack access to a forklift or loading dock, you will need a lift gate to unload your pallet from the truck.

Freight can be complex; if you require assistance in selecting the appropriate shipping option, please contact our sales department at 1 (800) 230-7004 for support. The freight quotes provided on our website are approximate, and our team may be able to offer a better rate.

Please note that the shipping cost displayed at checkout is an estimate and may be adjusted at the time of shipment. Freight rates may increase while the product is in production. You can help by providing a commercial shipping address that can accommodate a semi-trailer and/or acknowledging the outlined terms and conditions.

Ground/Freight Cost Logistics Unforeseen Expenses

Any fees incurred by a shipping carrier due to a lack of delivery information (address or location) will automatically be billed to the customer. Please ensure you check your order confirmation for accurate information.

When placing an order by phone, inform the sales representative of any shipping irregularities (inaccessible areas for shipping carriers, such as narrow driveways, rural locations, steep hills, dirt/gravel roads, or missing address information and signage).

By placing an order with USSolarSupplier, you agree to our shipping policy. If you have any questions or concerns about shipping, please feel free to contact our friendly and knowledgeable customer support team. We are always here to help and ensure that your experience with USSolarSupplier is a positive one.

Restocking Fee

Please note that a 40% restocking fee will be applied to panels, inverters, and batteries once the order has been processed and delivery has been attempted. This fee is in place to cover the costs associated with processing, handling, and restocking returned items.

If you need to cancel an order, please contact our customer support team as soon as possible. If the order has not yet been shipped, we will make every effort to cancel it without incurring additional costs. However, if the order has already been shipped, you will be responsible for the return shipping costs and the 40% restocking fee mentioned above.

Claims Returns Policy

If you receive damaged, defective, or incorrect products, please contact our customer support team within 5 business days of receiving the shipment. We will work with you to find a suitable solution, which may include issuing a refund, replacing the product, or providing technical support to resolve the issue.

To initiate a return, you must first obtain a Return Merchandise Authorization (RMA) number from our customer support team. Please note that returns without an RMA number will not be accepted. When returning products, they must be in their original packaging, with all accessories and documentation included. The customer is responsible for return shipping costs, and the 40% restocking fee will apply.

Refund Policy

Refunds will be issued to the original payment method within 14 business days of receiving the returned product(s). The refund amount will be the purchase price minus the 40% restocking fee and any shipping charges incurred during the initial shipment and return process.

Lost or Stolen Packages

USSolarSupplier is not responsible for lost or stolen packages confirmed to be delivered to the address entered for an order. Upon inquiry, we will confirm the delivery to the address provided, date of delivery, tracking information, and shipping carrier information for the customer to investigate.

What is half-cut solar cell technology?

Half-cut solar photovoltaic cells were pioneered by REC Solar in 2014 and were designed to increase the energy output of solar panels. We will detail more about how they work below, but you can think of a half-cut cell as two separate panels in one.

In this article, we will explain how half-cut solar PV modules work, why their design improves the performance of standard solar panels, which manufacturers use them, and the potential future of half-cut solar cell technology.

How do half-cut solar cells work?

Half-cut solar cell technology increases the energy output of solar panels by reducing the size of the cells, so more can fit on the panel. The panel is then split in half so the top operates independently of the bottom, which means more energy is created. even if one half is shaded.

That’s the general overview. below, we break the process down.

Traditional monocrystalline solar panels usually have 60 to 72 solar cells, so when those cells are cut in half, the number of cells increases. Half-cut panels have 120 to 144 cells and are usually made with PERC technology, which offers higher module efficiency.

The cells are cut in half, very delicately, with a laser. By cutting these cells in half, the current within the cells is also halved, which essentially means that resistive losses from traveling energy via current are reduced, which, in turn, equals better performance.

Since the solar cells are cut in half, and are thereby reduced in size, they have more cells on the panel than traditional panels do. The panel itself is then split in half so that the top and bottom portions operate as two separate panels. generating energy even if one half is shaded.

The key to half-cut cell design is a different method of “series wiring” for the panel, or the way the solar cells are wired together and pass electricity through a bypass diode within a panel. The bypass diode, indicated by the red line in the images below, carries the electricity that the cells generate to the junction box.

In a traditional panel, when one cell is shaded or faulty and does not process energy, the entire row that is within the series wiring will stop producing power.

For example, let’s take a look at the traditional 3-string series wiring method:

With the traditional full cell string series wiring, shown above, if a solar cell in Row 1 does not have ample sunlight, every cell within that series will not produce energy. This knocks out a third of the panel.

A half-cut, 6-string solar panel works a bit differently:

If a solar cell in Row 1 is shaded, the cells within that row (and that row only) will stop producing power. Row 4 will continue to produce power, generating more energy than a traditional series wiring because only one-sixth of the panel has stopped producing power, instead of one-third.

You can also see that the panel itself is split in half, so there are 6 total cell groups instead of 3. The bypass diode connects in the middle of the panel, instead of on one side like the traditional wiring above.

What are the advantages of half-cut cells?

The advantages of half-cut cell panels are numerous.

They improve the power output and performance of solar modules because they offer a higher shade tolerance due to their unique wiring system. This means that if your home has some trees that cast shade onto your roof at certain times during the day, your entire solar panel will not be unusable, like it would with a traditional solar panel.

Another benefit is the fact that they usually offer a higher wattage than traditional panels, even up to 380 watts for the REC Alpha versus traditional panels which are typically within the 250-watt range, meaning they produce more power per square foot.

Additionally, the effects of hot spots are less severe on your solar panels with half-cut cells. Hot spots are the shifting of excess heat on a panel, say from a very hot part to the shaded, cooler section. With a half-cut cell, hot spots will not be as damaging because there are more cells to spread the excess heat to.

Half-cut cells also reduce power loss suffered by traditional panels by reducing internal resistance. Internal series resistance occurs just by the nature of energy traveling through the panel via electric current. But because solar cells are cut in half, there is less current generated from each cell, meaning less resistive losses.

Although half-cut cells offer many advantages, they are more expensive because they are more challenging to manufacture, with increased soldering steps and laser cutting. Ultimately, it is up to you to decide if the overall benefits make the increased cost worth it.

What manufacturers use half-cut cell modules?

Ever since REC Solar pioneered half-cut cell technology, many solar companies have followed suit. Some of the more well-known manufacturers are Panasonic, Trina Solar, Q CELLS, Jinko Solar, and LONGi Solar panels.

If you are interested in half-cut cell solar panels, work with your installer to find the best option for your specific roof’s solar installation. Whichever option you choose, traditional versus half-cut, going with a reputable manufacturer and trustworthy local installers is your best option.

Are half-cut panels the future of solar?

Half-cut cells are really great for improving the solar power energy yield of panels, but they are more challenging to manufacture. This makes it hard for traditional manufacturers to switch to producing half-cell solar modules, it is not as simple as just adding half-cut cells to a production line.

In many cases, traditional solar panels can still work for you, like if your roof has ample sunlight throughout the day.

But if you need every ounce of energy you can get because you live in a shady area or you want to maximize your net metering benefits, half-cut cells make sense. Ask for half-cut cells if you have a small surface area that needs to generate all the solar power it can. Otherwise, you should be fine with traditional panels even if you might need a few more of them on your roof.

Perhaps when the manufacturing of half-cut cells becomes more streamlined and easier to adopt, they will become cheaper and more widespread. Your solar installer will help you decide if half-cut cells are the right choice for your rooftop solar array.

Half-Cut Solar Panels: Pros Cons | Worth Your Investment?

Half-cut solar cell technology is a new and improved design applied to the traditional crystalline silicon solar cells. This promising technology reduces some of the most important power losses in standard PV modules, allowing the solar panels and a PV system, in general, to perform better.

The advantages of half-cut solar cells are great and there are no remarkable disadvantages to this technology when compared to traditional modules. In this article, we will provide a detailed explanation of half-cut solar cell technology, how it works, its advantages disadvantages, and even compare it against traditional and PERC technology.

What is a half-cut solar panel?

Half-cell modules or commonly known as half-cut solar panels are the new trend in manufacturing technology. If you are wondering what is a half-cut solar panel? Here we explain it in detail:

Components and materials of the half-cut solar cell

Half-cut solar cell modules are not a technology developed with new and innovative chemical components added to the cell. Actually, the half-cut solar cell technology is based on the traditional crystalline silicon (c-Si) solar cells. This means that the components and materials used to manufacture a half-cut solar cell are the same as the ones for c-Si solar cells, which are the following:

Printed silver paste (front contact).
Anti-reflective coating or anti-reflective glass.
A doped semiconductor made with c-Si (P-N junction).
Back Surface Field
Print aluminum paste (rear contact).

While the half-cut solar cell itself shares the same technology as the traditional ones, the fact that sets them apart is a change in the design, which focuses on improving performance and reducing electrical losses from traditional panels.

Cutting in half of the solar cell

Half-cut solar cells start to differ from regular cells because they are cut in half with a process called cleaving, applied to monocrystalline and polycrystalline solar cells. The cleaving process uses high-tech laser technology to cut the cell in half, with the cell delivering the same voltage but half the current.

Since this technology is based on cutting a traditional crystalline silicon solar cell, this means that the conversion efficiency for the half-cut solar cell is theoretically the same as the traditional c-Si cell. Other types of solar cells like PERC and bifacial can be used to manufacture half-cut solar cells.

Structure of half-cut solar panel

A half-cut solar cell panel allocates twice the cells in the same area of a regular module. This means two times the arrays of solar cells within one module, with half-cut solar cells having half the width, keeping the area of the panel the same.

Generally, modules with 60 solar cells include three substrings of 20 cells in series. The equivalent half-cut solar cell modules have 120 solar cells, divided into six substrings of 20 cells. Each side of the half-cut solar panel has three substrings in parallel, with both sides also connected in parallel. Besides, there is one bypass diode per substring pair. The same case is analog for panels with 72 solar cells or more.

Working mechanism

A half-cut solar panel works the same way a whole-cell one, but it has a few more substrings. Arrays of half-cut solar panels can be connected as well in series or parallel, replacing traditional whole-cell modules, with the voltage being the same in both cases.

Major differences from halving solar cells and increasing the substrings are the production of less current per cell which translates in reduced losses, and the increased tolerance against partial shading.

Advantages of half-cut solar panels

Are you wondering what are the benefits of half-cut solar panels? Here we will list and explain the benefits achieved by implementing half-cut solar cell technology:

Reduced power losses

The main improvement of half-cut solar cell modules is the reduction of electrical losses caused by Joule’s Law, which is based on the following equation:

Since half-cut solar cell produces half (1/2) the current per cell, and Joule’s Law considers the square current to calculate losses, these cells produce one-fourth (1/4) the power losses, or about 75% less electrical losses. On the other hand, when evaluated at the module level, there is an increased overall current output of 2-4%, which also increases the power output by that same percentage.

Increased partial shading tolerance

When a PV module is partially shaded, this causes major power losses for the module and the array. Half-cut solar cells include twice the substrings, meaning that shading a single area of a panel will cause reduced losses. Studies show that half-cut solar cell panels produce up to 50% fewer power losses in an array.

Reduced hot spots and temperature in general

Hot spots are a consequence of partial shading in solar panels. When some cells are shaded, instead of producing power they act as resistances, consuming electricity and therefore increasing their temperature. Half-cut solar cells reduce the current per substring, which in turn reduces the temperature of hot spots, this technology can reduce the peak temperature of hot spots by up to 20ºC.

Higher Cell-to-Module power

While conversion efficiency for a single half-cut solar cell depends on the type of solar cell technology, half-cut solar cells have a higher Cell-to-Module power (CTM) which translates into higher power output. Traditional PV modules have a 94.8% CTM power while half-cut solar cells have a 99.4% CTM power before factoring laser-cut losses, or 98.4% after factoring them.

Integration with different solar cell technologies

Half-cut solar cell technology is a modification in the manufacturing process of PV modules that uses solar cells manufactured under the traditional c-Si technology. As a consequence, half-cut solar panels can be manufactured in combination with PERC and/or bifacial technologies, which can translate as PV modules with fewer power losses, a higher power output, and several other advantages.

How about their disadvantages?

Half-cut solar cell technology is quite beneficial; however, there are a couple of disadvantages to consider:

Manufacturing of Half-cut solar cells represents a large investment in manufacturing equipment

To manufacture the same number of half-cut solar cell modules compared to whole-cell modules, manufacturers need to invest in doubling their tabber stringers and acquire a piece of equipment to cleave the solar cells. Studies show that half-cell modules cost 0.6-1.2% more than whole-cell modules, but thanks to the power increase, their cost per watt is reduced by 0.8-1%.

Increased probability of bad contacts or cell-inherent defects

Manufacturing half-cut solar cell modules means twice the soldered connections, which translates as twice the probability of bad contacts. Halving the solar cell also increases the probability of causing defective cells which is a downside to the technology for manufacturers. While this is a problem to consider, a manufacturer with proper quality control will not be greatly affected by this.

Half-cut vs. Standard solar panels (Comparison table)

To fully understand the scope of half-cut solar cell technology, it is important to compare it against the standard Al-BSF technology. In this section, we compare both technologies, considering aspects like the number of cells, voltage, current, and others.

Traditional c-Si solar panels use a simple technology that produces several losses and has poor CTM power. Since half-cut solar cell technology is an improvement of traditional crystalline silicon solar technology, reduces loses, increases CTM power, and it provides additional benefits.

Half-cut solar technology reduces electrical losses by 75%, increases CTM power by 3.6%, increases the resistance of the module against partial shading, reduces the operating temperature by handling less current per cell, and reduces hot spot by up to 20ºC. The main disadvantage of half-cut solar cell technology is the slightly higher cost and reduced aesthetics of the module (although for all-black solar panels is barely noticeable).

Half-cut vs. PERC solar panels

PERC solar technology improves the structural design of Al-BSF c-Si solar cells. This technology reduces losses due to the surface recombination process, increases the efficiency by implementing a reflecting metal at the rear surface of the cell, and reduces heat absorption. Comparing PERC against half-cut solar cell technology can provide an insight into which is the best one.

While half-cut solar panels produce 2-4% more power than standard modules, PERC solar cells increase this output by 6%. While this is an important advantage, it is its only point in favor of PERC against half-cut solar cell technology.

Even though PERC technology absorbs less heat from the sun, this technology shares the same shading intolerance and electrical losses as the standard solar panels. Half-cut solar panels might not have the same increased performance as PERC solar modules due to the surface recombination process, but they perform better when partially shaded and have an important reduction in ohmic losses. over, the potential reduction in energy losses caused by shading is something that PERC technology cannot compete with, particularly for the residential sector applications where major obstructions and trees can cause high shading.

However, the good news is that there is no need to choose between PERC and half-cut cells because both technologies can be integrated. This means that a PERC mono half-cut solar panel can be manufactured, including reduction of electrical losses, a higher tolerance against partial shading, reduced heat absorption from the sun, improved efficiency due to reducing surface recombination, and an increased CTM power, all at the same time.

Are half-cut solar panels worth your investment?

Half-cut solar technology is one of the latest attempts of the solar industry to achieve higher efficiency for PV modules. The technology only costs 0.6-1.2% more than standard c-Si PV modules, but it represents a higher power output of 2-4%. This makes it better for limited spaces requiring fewer PV modules.

Implementing half-cut solar panels is not only better for locations with limited space, but also provides better performance in areas that are being frequently shaded. By including more substrings, the system can be partially shaded without causing the large losses that some regular systems have.

While you might worry that with smaller solar cells, the PV module will also be more delicate, this is not the case. Since modules are covered with protecting glass, mono half-cut solar panels will have the same durability as a regular solar panel, making it one of the best investments that can be made in the solar panel industry.

Sources:

https://www.solarsunever.com/144-poly-half-cut-cell-335-355w-solar-panel_p89.html
https://lasolarfactory.com/en/blog/advantages-of-half-cell-solar-modules
https://ussolarsupplier.com/products/aptos-dna-144-bf26-440w-440w-black-on-black-144-half-cell-mono-solar-panel
https://www.solarreviews.com/blog/half-cut-solar-cell-technology-explained
https://solarmagazine.com/solar-panels/half-cut-solar-panels/

144 Poly Half cut Cell 335-355W solar panel. 144 cell solar panel