What is PERC? Why should you care?
There has been a lot of buzz about PERC solar cell technology, especially over the past year, with manufacturers large and small touting it. It has piqued the interest of many in the industry, but basic information surrounding the advanced technology has not been widely available. Here are the basics on PERC and what can be expected down the road for this technology.
Depending on which source is consulted, PERC stands for Passivated Emitter Rear Cell, Passivated Emitter Rear Contact or even Passivated Emitter and Rear Cell. First developed in Australia in the 1980s by scientist Martin Green and his team at University of New South Wales, PERC technology adds an extra layer to the rear-side of a solar cell. Manufacturers spent many years focusing on the front side of a solar cell, and less attention was paid to taking advantage of production opportunities from the backside. Incorporating PERC into a solar cell boosts generation.
In order to create a PERC cell, an additional two steps are employed to the standard back surface field (BSF) during the manufacturing process. First, a rear surface passivation film is applied. Second, lasers or chemicals are used to open the rear passivation stack and create tiny s in the film to absorb more light. Manufacturers can approach this in different ways (i.e. varying the recipe for the film and opening technique), but in every instance a dielectric passivation layer is added to the back of the cell.
In employing just two additional steps, the return is threefold: 1.) Electron recombination is significantly reduced; 2.) light is absorbed; and 3.) Higher internal reflectivity is experienced. Not all sunlight is absorbed through non-PERC solar cells (some light passes straight through). But with a passivation layer on the rear side of a PERC cell, unabsorbed light is reflected by the additional layer back to the solar cell for a second absorption attempt. This process leads to a more efficient solar cell. This is great news for those across the spectrum of the industry.
Why do solar cell and panel manufacturers care?
The investment to move to a PERC technology line requires minimal modifications to existing cell manufacturing lines. Manufacturers can easily make the jump to produce a superior product without having to outlay large capital expenditures for a complete overhaul of existing equipment. There has been a boom in adding PERC capacity to the global market and it is set to continue at a Rapid pace for the next several years. Additionally, panel manufacturers are now able to produce a more energy dense module without much of an increase in build cost.
Why do developers, designers and installers care?
A SolarTech Universal solar panel
Panels incorporating PERC technology give more freedom to developers and designers, especially when dealing with unorthodox spaces or locations that were once thought to be less than desirable for solar. PERC panels have a higher energy density per square foot and perform well under low-light conditions and high temperatures. When considering total energy production rather than peak wattage, it is clear PERC panels are superior. Designers can utilize fewer panels to accomplish total output goals where footprint is limited, or they can dramatically maximize energy output if space is not a premium. It empowers designers to be more flexible and responsive to project objectives.
This freedom also allows the option to drive down BOS costs. is being achieved with less, which can trickle down to significantly reduced soft costs. This can be the difference between a client having sticker shock and not moving forward with project to one seeing a cost-effective and manageable system. Additionally, more attractive temperature coefficients make PERC a top performer in hotter climates, and less thermal loss is experienced. This allows end users to achieve superior performance from their systems throughout the year.
Why do financiers care?
Being that PERC technology is neither new or radically different from standard cells, there is reduced risk on the financier’s side of the table to back an advanced technology. By utilizing a proven technology and modifying the standard cell, there is no change in the inherent risk of the module and its performance. Financiers should warm to the idea of panels manufactured with PERC technology. It sets a course for establishing dependable, long-term power output in a cost-effective manner for residential, commercial and utility projects. Total power generation over the lifetime of the solar system is increased without dramatically boosting the cost per watt.
What’s the future of solar cells?
Cell manufacturers were busy in 2015 expanding capacities to accommodate PERC demand from module manufacturers, and these trends have continued into 2016. PERC will be a mainstay for several years primarily because it does not require complete operation overhauls by current cell manufacturers.
There are other silicon cell types on the horizon set to propel panels into the next generation. One that has already been commercialized and is being utilized by U.S.-based PV module manufacturer SolarTech Universal is the heterojunction (HJT) bi-facial cell. The HJT cell fuses the best attributes from mono crystalline silicon cells (superior absorption) and amorphous silicon cells (excellent passivation) for a specialized cell that is immune to PID and LID. SolarTech Universal’s panels incorporating HJT cells achieve 300 watts on the front side.
About The Author
Kelly Pickerel
Kelly Pickerel has over a decade of experience reporting on the U.S. solar industry and is currently editor in chief of Solar Power World.
Комментарии и мнения владельцев
can PERC have better thermal stability compared with standard solar cells? and also can we measure the efficiency of energy conversion of the proposed solar cell model with PERC
Could you tell me your opinion on perovskites and how (or if) you believe it will ever take the place of silicon?
If perovskites SC has a better lifetime performance, and can be fabricated when exposed to air, it could be used in some flexible but small places in the future, due to the cheap materials superior increasing efficiency.
Real and honest numbers? What is the realistic power gain / perfomance gain (there is a difference!) The advantage from the reflected light shall be dependent from the cell thickness which is around 160-180 microns. What I learned, the absobtion of most of the light is at ~40 microns depth.
I know SolarWorld Americas has PERC technology, as well as a new Bifacial module available for sale….
Hi John, Nearly every panel manufacturer now has a PERC line. They’re usually pretty vocal about including the technology in their newer modules.
Mono perc solar
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- Livguard Inverter
- UTC Inveter
- Luminous Battery
- Microtek Battery
- Livguard Battery
- Exide Battery
- UTL Battery
- V Gaurd Stabilizer
- Microtek Stabilizer
- Livguard Stabilizer
- Luminous Stabilizer
- Servo Voltage Stabilizer
- OPPO
- VIVO
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- YORKUS LED
- Panel Lights
- Concealed Light
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Luminous Solar PV Panel 370w/24V 72 Cells Mono Perc
Key Feature’s Of Luminous Solar PV Panel 370w/24V 72 Cells Mono Perc Panel Type:- Mono PERC Cells type Panel.Capacity:- 370W, 24VVoltage:- Voltage at Max Power (Vmax) – 39.25V, Open Circuit Voltage (Voc) – 47.08VCurrent:- Current at Max Power (imax) – 9.43A, Short Circuit Current (isc) – 10.01AWarranty:- 25 years performance warranty. Description If you are.
Key Feature’s Of Luminous Solar PV Panel 370w/24V 72 Cells Mono Perc
Panel Type:- Mono PERC Cells type Panel.Capacity:- 370W, 24V Voltage:- Voltage at Max Power (Vmax) – 39.25V, Open Circuit Voltage (Voc) – 47.08V Current:- Current at Max Power (imax) – 9.43A, Short Circuit Current (isc) – 10.01A Warranty:- 25 years performance warranty.
Description
If you are looking for a solar photo voltaic panel 370w / 24v mono perc price then the Luminous Solar PV Panel 370w/24V 72 Cells Mono Perc will be a Greate choice for you. Unlike other brands, Luminous is known for making high-end inverters, batteries, Solar system, Online UPS, and Home UPS that are durable and extremely practical. The Luminous Solar PV Panel 370W/24V is a premium quality Panel from Luminous. Glazeimpex is a well-known e-commerce platform for a qualitative range of Solar system, Online UPS, Home UPS, Inverter, Battery. The entire Luminous Panel 370W/24V solar panel is manufactured using quality-assured material and advanced techniques, making them rise to the standard in this challenging field.
The 370 watt Mono PERC solar panel consists of 72 solar cells made from a single silicon crystal These panels are ideal for smaller roofs or roofs with tight spaces. The cells inside the solar panel are made of Grade A Anti-PID cells.
PERC is an innovation that’s currently available within the sort of Mono and Poly cells. Conventionally, solar cells have an emitter layer on the front surface and a black coating on the rear. On the opposite hand, Passivated Emitter and Back Cell (PERC) uses a dielectric passivation film on the rear surface of cells.
- Compliance with IEC standards
- Best in Class conversion efficiency
- Anti-reflective coating and back surface (BSF) for more light absorption
- Advanced EVA (ethyl vinyl acetate) encapsulation to give better protection to modules
- High strength light-weight aluminum frame design for high torsion resistance against winds and snow loads
- PID resistance Technology (Potential-Induced Degradation) for safety against substantial power loss due to stray currents triggered by certain climate conditions
- Excellent Low light performance in low visibility in clouds, evening, and morning.
Here’s Why Will You Like This?
- Mono PERC Cells type Panel.
- Advanced EVA encapsulation to give better protection to modules
- Best in Class conversion efficiency
- Anti-reflective coating for more light absorption
- Optically, mechanically and electrically tested
- High strength Aluminium frame design to offer high torsion resistance
- Compliance to IEC standards
Product Specification
| Model | LUM 24370MP |
| Wattage (Wp) | 370 |
| Panel Type | Mono PERC |
| Warranty | 144 months |
| Solar Panel Dimension (LBT) cm | 197.699.13.5 CM |
| Net weight (kg.) | 22.5 kg |
| Short Circuit Currrent, Isc (A) | 10.01 A |
| Maximum Power Voltage Vmp (V) | 39.25 V |
| Open Circuit Voltage, Voc (V) | 47.08 V |
| Maximum Power Current. Imp (A) | 9.43 A |
| Contents of Pack | 1 Solar Panel, 1 Warranty Card |
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Returns: All products sold through Glaze Impex Private Limited are generally delivered in person by our shipping partner to your doorstep. Therefore, there is no risk of product damage or operational problems. For any reason, if you want to cancel the purchase or return the product, please return it at the time of delivery. Your amount will be refunded to your bank account within 7 business days.
Cancellation policy: We accept the cancellation of your orders with the following applicable charges:
- Within 24 hours after placing the order: No penalty.
- After 24 hours: 10% of the Sale price
What is PERC? Why should you care?
There has been a lot of buzz about PERC solar cell technology, especially over the past year, with manufacturers large and small touting it. It has piqued the interest of many in the industry, but basic information surrounding the advanced technology has not been widely available. Here are the basics on PERC and what can be expected down the road for this technology.
Depending on which source is consulted, PERC stands for Passivated Emitter Rear Cell, Passivated Emitter Rear Contact or even Passivated Emitter and Rear Cell. First developed in Australia in the 1980s by scientist Martin Green and his team at University of New South Wales, PERC technology adds an extra layer to the rear-side of a solar cell. Manufacturers spent many years focusing on the front side of a solar cell, and less attention was paid to taking advantage of production opportunities from the backside. Incorporating PERC into a solar cell boosts generation.
In order to create a PERC cell, an additional two steps are employed to the standard back surface field (BSF) during the manufacturing process. First, a rear surface passivation film is applied. Second, lasers or chemicals are used to open the rear passivation stack and create tiny s in the film to absorb more light. Manufacturers can approach this in different ways (i.e. varying the recipe for the film and opening technique), but in every instance a dielectric passivation layer is added to the back of the cell.
In employing just two additional steps, the return is threefold: 1.) Electron recombination is significantly reduced; 2.) light is absorbed; and 3.) Higher internal reflectivity is experienced. Not all sunlight is absorbed through non-PERC solar cells (some light passes straight through). But with a passivation layer on the rear side of a PERC cell, unabsorbed light is reflected by the additional layer back to the solar cell for a second absorption attempt. This process leads to a more efficient solar cell. This is great news for those across the spectrum of the industry.
Why do solar cell and panel manufacturers care?
The investment to move to a PERC technology line requires minimal modifications to existing cell manufacturing lines. Manufacturers can easily make the jump to produce a superior product without having to outlay large capital expenditures for a complete overhaul of existing equipment. There has been a boom in adding PERC capacity to the global market and it is set to continue at a Rapid pace for the next several years. Additionally, panel manufacturers are now able to produce a more energy dense module without much of an increase in build cost.
Why do developers, designers and installers care?
A SolarTech Universal solar panel
Panels incorporating PERC technology give more freedom to developers and designers, especially when dealing with unorthodox spaces or locations that were once thought to be less than desirable for solar. PERC panels have a higher energy density per square foot and perform well under low-light conditions and high temperatures. When considering total energy production rather than peak wattage, it is clear PERC panels are superior. Designers can utilize fewer panels to accomplish total output goals where footprint is limited, or they can dramatically maximize energy output if space is not a premium. It empowers designers to be more flexible and responsive to project objectives.
This freedom also allows the option to drive down BOS costs. is being achieved with less, which can trickle down to significantly reduced soft costs. This can be the difference between a client having sticker shock and not moving forward with project to one seeing a cost-effective and manageable system. Additionally, more attractive temperature coefficients make PERC a top performer in hotter climates, and less thermal loss is experienced. This allows end users to achieve superior performance from their systems throughout the year.
Why do financiers care?
Being that PERC technology is neither new or radically different from standard cells, there is reduced risk on the financier’s side of the table to back an advanced technology. By utilizing a proven technology and modifying the standard cell, there is no change in the inherent risk of the module and its performance. Financiers should warm to the idea of panels manufactured with PERC technology. It sets a course for establishing dependable, long-term power output in a cost-effective manner for residential, commercial and utility projects. Total power generation over the lifetime of the solar system is increased without dramatically boosting the cost per watt.
What’s the future of solar cells?
Cell manufacturers were busy in 2015 expanding capacities to accommodate PERC demand from module manufacturers, and these trends have continued into 2016. PERC will be a mainstay for several years primarily because it does not require complete operation overhauls by current cell manufacturers.
There are other silicon cell types on the horizon set to propel panels into the next generation. One that has already been commercialized and is being utilized by U.S.-based PV module manufacturer SolarTech Universal is the heterojunction (HJT) bi-facial cell. The HJT cell fuses the best attributes from mono crystalline silicon cells (superior absorption) and amorphous silicon cells (excellent passivation) for a specialized cell that is immune to PID and LID. SolarTech Universal’s panels incorporating HJT cells achieve 300 watts on the front side.
About The Author
Kelly Pickerel
Kelly Pickerel has over a decade of experience reporting on the U.S. solar industry and is currently editor in chief of Solar Power World.
Комментарии и мнения владельцев
can PERC have better thermal stability compared with standard solar cells? and also can we measure the efficiency of energy conversion of the proposed solar cell model with PERC
Could you tell me your opinion on perovskites and how (or if) you believe it will ever take the place of silicon?
If perovskites SC has a better lifetime performance, and can be fabricated when exposed to air, it could be used in some flexible but small places in the future, due to the cheap materials superior increasing efficiency.
Real and honest numbers? What is the realistic power gain / perfomance gain (there is a difference!) The advantage from the reflected light shall be dependent from the cell thickness which is around 160-180 microns. What I learned, the absobtion of most of the light is at ~40 microns depth.
I know SolarWorld Americas has PERC technology, as well as a new Bifacial module available for sale….
Hi John, Nearly every panel manufacturer now has a PERC line. They’re usually pretty vocal about including the technology in their newer modules.
Monocrystalline vs Polycrystalline Solar Panels: What’s The Difference?
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Solar energy, once a sideline to carbon-based energy sources, is rapidly proliferating and is powering more homes than ever. Of the estimated 3 million solar installations across the country, one-third were built just in the last couple of years – with searches for the best solar companies increasing yearly.
So it pays to scrutinize all aspects of your solar energy system, especially the choice between monocrystalline or polycrystalline solar panels. Efficiency, cost and durability hinge on your choice of the type of solar panel.
THIS IS AN ADVERTISEMENT AND NOT EDITORIAL CONTENT. Please note that we do receive compensation for any products you buy or sign up to via this advertisement, and that compensation impacts the ranking and placement of any offers listed herein. We do not present information about every offer available. The information and savings numbers depicted above are for demonstration purposes only, and your results may vary.
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What a Solar Panel Is
There are two types of solar panels : thermal and photovoltaic. Thermal solar panels concentrate sunlight to produce heat. Photovoltaic (PV) solar panels capture energy from the sun and convert it into electricity.
Photovoltaic solar panels are often favored by homeowners as the best solar panels for residential use. Though they are actually less efficient than solar thermal panels, they work better on a residential scale because they do not require large facilities.
A solar panel can be likened to a picture frame. It is rectangular; it has a metal frame around it and the front has protective glass. There are several layers to a solar panel, the most important of which is the layer that contains the matrix of solar cells.
Anywhere from 32 to 96 solar cells are arranged within each solar panel, with all of the cells wired together side to side and outputting anywhere from 230 to 275 watts of electricity.
The solar cells can either be monocrystalline or polycrystalline. Monocrystalline solar cells comprise the more premium panel since they more effectively harness the sun’s rays. But polycrystalline panels are less expensive and can be a good option for high sunlight areas.
What Monocrystalline Solar Panels Are
Monocrystalline solar panels (or mono panels) are made from monocrystalline solar cells. Each cell is a slice of a single crystal of silicon that is grown expressly for the purpose of creating solar panels.
In the lab, the crystal is grown into a cylindrical log shape called an ingot and is then sliced into thin discs. Each disc is cut along the edges to form octagons.
When the solar cells are placed on the solar panel, the octagonal shapes help the solar panels fit a maximum number of solar cells into the array. It’s much like cookies on a baking sheet. Even tightly spaced round cookies always have spaces between them, but octagonal cookies can be placed tightly together with little wasted space.
Distinctive for their black color, monocrystalline solar panels typically have an efficiency range of between 15% to 20%, with some newer experimental models even reaching close to 50%.
What Polycrystalline Solar Panels Are
Polycrystalline solar panels (or poly panels) are made of individual polycrystalline solar cells.
Just like monocrystalline solar cells, polycrystalline solar cells are made from silicon crystals. The difference is that, instead of being extruded as a single pure ingot, the silicon crystal cools and fragments on its own. These fragments are melted in an oven and formed into cubes which are cut into thin wafers. So, many different crystals form this amalgam, rather than the single crystal of the monocrystalline solar cell type. It’s a less exacting production process than with monocrystalline cells, so it allows for more solar cells to be produced faster and less expensively.
The blue-colored square polycrystalline cells fit neatly side by side, eliminating any empty space between the cells. Polycrystalline solar panels operate less efficiently than monocrystalline panels because the melted fragments of silicon afford less room for the electrons to move around.
Polycrystalline panels generally have an efficiency rating of between 13% and 16%. While only a few percentage points less than monocrystalline panels, it’s a difference that can count for a lot when compounded across many solar panels.
Polycrystalline Solar Panel Pros and Cons
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Best Applications for Monocrystalline Solar Panels
Monocrystalline solar panels are best for areas where space is limited since they produce more electricity on a smaller scale than poly panels. Monocrystalline solar panels can draw out the maximum amount of energy even in areas of lower sunlight. So, they are ideal when the goal is efficiency more than cost.
Though all solar panels are bulky, monocrystalline solar panels, with their dark hue, fade into the background better than poly units.
Monocrystalline solar panels tend to have better heat tolerance than polycrystalline panels. So, they are a good choice for areas of extreme heat, such as desert environments.
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Best Applications for Polycrystalline Solar Panel
Polycrystalline solar panels are best when you need to observe the bottom line.
Because monocrystalline panels tend to cost about 0.05 per watt more, the polycrystalline units are a better value, as long as you have enough space for the panels.
Polycrystalline solar panels work better in areas that are rich in sunlight since they deliver less wattage than the panels.
THIS IS AN ADVERTISEMENT AND NOT EDITORIAL CONTENT. Please note that we do receive compensation for any products you buy or sign up to via this advertisement, and that compensation impacts the ranking and placement of any offers listed herein. We do not present information about every offer available. The information and savings numbers depicted above are for demonstration purposes only, and your results may vary.
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The bluish tint and speckled appearance of the polycrystalline panels may not suit everyone, especially when installed in large numbers in residential areas. But they do work well for rural areas or for urban areas where the panels can be conveniently tucked away, like on a rooftop or in back of the property.
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