Conventional silicon photovoltaic (PV) cells have long been the standard in the solar industry. But as the technology matures and approaches hard efficiency limits, researchers and manufacturers have started to embrace a relative newcomer &#; the Passivated Emitter and Rear Contact (
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PERC
) solar cell.
In this article, we&#;ll look at the
core benefits
of PERC solar cells, how they work, how they&#;re made, and even how to sell them. But first, let&#;s get into some background about how conventional solar cells work and what limitations they present.
Traditional solar cells contain two layers of silicon, commonly called &#;n-type&#; and &#;p-type&#; for their negative and positive charge behavior. A solar panel
creates electricity
when sunlight hits the solar cells, knocking electrons loose from the n-type layer as the p-type layer accepts them.
These flowing electrons are what create an electric field &#; and by extension &#; clean solar power for the customer&#;s home or business.
Although this basic design has served the solar industry well, plain PV cells suffer from several
types of efficiency losses
, including:
Insufficient sunlight capture either due to light reflecting off panel surfaces or because of wires and other components blocking light
Excessive heat buildup, especially as light hits the back-most surface of the PV cells
Free electrons being knocked out of alignment due to scattered light refraction
Electrons recombining with the silicon material on the front and back of the solar cell
Fortunately, some of these efficiency losses can be mitigated with technology.
For example, adding a front passivation layer can help stop front-side recombination. This strategy also helps to reduce some reflection. To prevent unwanted electrons from moving through the cell and hitting the rear contact, it&#;s possible to add a back surface field layer or place all the wires on the back of the panel during the manufacturing process.
The hardest efficiency losses to manage, however, are excessive PV panel heating and back-side recombination. Because of these limits, the maximum efficiency of standard solar modules
hovers around 20%
in the field.
First
introduced in
, PERC panels are modified silicon cells that have an
additionallayer on the back. Because this extra layer is reflective, it is able to send unused light back across the n-type and p-type junctions to generate more energy. Better still, this reflective surface also helps to reduce rear recombination and prevent longer wavelengths from becoming heat that would otherwise impair the cell&#;s performance.
Early commercial implementations of PERC technology ran into trouble &#; largely due to increased
light-induced degradation
. But with
steady improvements over the years, PERC modules have since achieved solar generation efficiencies up to 12% higher than their traditional silicon counterparts.
As a result, solar PV installers are able to
save time
and
reduce costs
when using the newer PERC standard. This is because fewer panels are needed to achieve the same solar power output. Using fewer panels also helps to reduce the amount of
racking
,
wiring
, and
MLPE
devices needed to connect everything together.
For example, even if roof space is not a major concern, it may be possible to savePERC solar modules are structurally similar to other silicon panels on the market, which is a distinct advantage for manufacturers.
Even though there are additional costs when creating passivation and rear contact capping layers, panel manufacturers are able to reuse existing production equipment with minimal retooling required.
This places PERC manufacturing costs on par with conventional silicon cell production. Although PERC panels remain
slightlymore expensive, these costs are largely offset by the increased efficiency gains &#; which yield higher lifetime utility bill savings and carbon offsets for the end user. And as the technology continues to mature thanks to economies of scale and R&D, PERC cells will likely continue to benefit from even larger efficiency gains and cost reductions moving forward.
Monocrystalline solar cells are cut from a single piece of silicon, making them more efficient than polycrystalline panels. Additional PERC layers can be added to help further increase efficiency rates.
Unlike uniform monocrystalline cells, polycrystalline PERC cells are manufactured using a blend of silicon shards. This mix yields lower efficiencies, but polycrystalline cells are cheaper to manufacture.
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Just like with monocrystalline cells, adding a PERC layer can significantly increase the efficiency of polycrystalline cells without dramatically increasing their manufacturing costs. But because higher solar power output is the industry&#;s Holy Grail, the more efficient monocrystalline PERC cell is the preferred standard for most new PV installations.
Global demand for PERC modules skyrocketed in the late s and continues to see steady growth. In , the
PERC solar sales market
was estimated at around $150 billion and is projected to hit $290 billion by .
While PERC cells are undoubtedly the top panel on the market, some
industry experts
theorize that PERC cells may be phased out in the next few years, favoring N-type solar cells due to their &#;superior conversion efficiency.&#;
Pros and cons of PERC solar panels
There&#;s a reason PERC cells are the industry standard &#; they&#;re highly efficient and a much-improved type of PV technology compared to traditional solar panels. However, compared to the new development of N-type cells, there are some disadvantages. Let&#;s review the pros and cons of PERC solar panels.
Pros of PERC solar panels
More efficient compared to conventional silicon solar panels
Work better in low light and high heat conditions compared to standard solar cells
Are more affordable than N-type solar panels
Cons of PERC solar panels
Slightly more expensive compared to conventional silicon panels
Don&#;t produce as much power compared to N-type cells
Are more negatively influenced by high temperatures than N-type cells
How offering PERC solar panels can increase solar sales
The main selling point of PERC panels is their efficiency. Because they make better use of space, fewer modules are required to produce the same solar output as a standard silicon panel. For customers who may have space constraints, offering PERC panels is a compelling option. The same case goes for customers who don&#;t get as much direct roof sunlight or customers who live in high-heat areas: PERC cells perform better in these conditions compared to traditional cells.
But even if roof real estate or weather conditions aren&#;t factors, it&#;s possible to
save installation time and costs
by using PERC modules. Because PERC cells are more efficient, less panels will need to be installed.
Side-by-side cost comparison: Traditional vs. PERC Solar Panels
Cost will still be a major consideration for many clients. To seal the solar deal, it&#;s easier to outline how PERC solar panels are a better value in the long run, even if they&#;re a larger upfront investment. The table below provides a good visual.
Want to learn more about the solar industry?You&#;ll hear from industry experts on everything from what to expect for the rest of , to how AI is affecting the industry, and more.For example, even if roof space is not a major concern, it may be possible to save installation time and costs by using higher efficiency PERC modules. If a site takes 40 standard modules or 38 PERC modules to reach the desired annual production, you&#;re able to reduce the amount of racking, wiring , and MLPE devices needed to connect everything together.A knowledgeable customer is one of our best weapons when selling solar. Make sure your customers have all the information by giving them a free Solar Sales Follow Up Kit . It has all the background a customer needs on the basics of solar, and can help set their mind at ease.
Introduction
The ever-changing technology of harnessing renewable energy is a boon for modern households and businesses as it saves costs in every possible way. Solar panels are one such step that helps you to live in a clean environment and use the sun&#;s energy at an affordable price. But the journey of science has not stopped at achieving this feat of accessible renewable energy. Companies are evolving their cutting-edge technology so that you can have this sustainable energy source at the lowest cost possible.
The Mono PERC Solar Panels are a testament to technological excellence. These modules are the pinnacle in today&#;s solar energy era and the most efficient solar modules. The PERC in the name stands for Passivated Emitter & Rear Cell, which increases the efficiency of the solar modules in producing electricity. You can install these solar modules in your house or for your commercial uses to save money on energy consumption. Let&#;s examine how these panels are more efficient and reliable than others in the industry and what advantages they provide you regarding cost-efficiency and energy saving.
How Do Mono PERC Solar Panels Work?
These solar modules meet the needs of residential and business houses in attaining energy efficiency by upscaling the energy production process in the locational parameter. These modules have a passivated layer in the cell&#;s rear part that helps them produce more electricity. The light that passes through the PERC solar cell can be utilised again due to the passivated layer present at the rear of the cell. This leads to higher light absorption, which results in higher electricity production by the module.
Features of Mono PERC Solar Panels
Now that you know how these solar panels work, you may want to see their remarkable features. Like any new electronic device, the Mono PERC solar panels have futuristic designs and features that will blow your mind away. These features are the convincing point to seduce you to install them immediately. Our solar modules are an excellent value for money, an investment you will always appreciate.
These panels have M10 cells that efficiently generate higher energy through their cutting-edge technology to perform in low-light conditions. These solar panels are the epitome of solar energy generation on a perfectly sunny day.
With multiple applicability and versatility, these modules satisfy your business and residential needs. These panels can be installed as on-grid rooftops for industrial and commercial systems. These can also be installed as rooftop residential systems.
As our certifications show, our Mono PERC panels are the pinnacle of modern-day technology intertwined with innovation. These panels have approval from BIS and ALMM, which showcase our state-of-the-art quality standards.
The LCOE or Levelised Cost of Energy is very low. Simply put, it is the cost of energy or power produced by the solar over a period of time. This lower LCOE shows that you are using electricity produced by the solar modules at a low rate compared to the high costs of traditional available electricity.
PID-resistant materials ensure the durability of these modules. These modules can sustain heavy loads of snow and wind, which ensures their longer lifespan. Fused with low light performance, these panels provide the highest energy production by absorbing most of the light with their solar cells.
Here Are Some Benefits
These paragon of solar modules are a miracle in today&#;s renewable energy market. All this popularity is due to the benefits these modules entail with their cutting-edge technology and popularity in the solar product market.
The most value-for-money benefit of these solar panels is their optimum performance in low-light conditions. This element of low-light performance enables them to absorb every tiny bit of sunlight and provide more energy output, which helps you to cherish the cost-effective energy produced by such modules.
The performance efficiency of these modules is the best in the solar product market. These modules have a very long lifespan of 25 years, and their efficiency remains as high as 85% till the last of time. In the initial years, these solar modules work at an efficiency of 98%, a significant commitment displayed by the cutting-edge technology of these solar modules.
BOS is the abbreviation of Balance of System. This cost includes expenses like the cost of hardware, labour and inspection fees. Since these modules require less space for installation, their BOS cost is reduced, which further increases the product&#;s value proposition and makes this Mono PERC panel a lucrative investment in green energy.
The anti-reflective coating on these panels helps in optimum light transmission and less light loss through reflection, allowing these panels to convert most of the sunlight into electricity. This feature improves the efficiency and light absorption ability of the module.
PID stands for Potential-induced degradation, which means the potential-induced performance degradation in the photovoltaic modules. These solar modules are resistant to such degradation, which improves their energy production potential, and you can benefit from these panels for years to come due to their durability.
These solar modules help you save energy costs to a great extent and provide you with more than 20% energy efficiency. This cost-saving is possible due to its cutting-edge technology and modern design, which helps in greater energy production due to its unique solar cells. These savings will help you invest extra cash into another profitable avenue. Your investment in these solar modules will start paying off itself from day one by doing energy savings for you. The cost of a Solar Power Plant with this technology is recovered in 3-4 years. However, life is more than 25 years. The government of India also provides accelerated depreciation benefits for installing solar power plants.
Conclusion
These solar panels are the best-in-class Technology that will fulfill your energy consumption needs and save the environment. The only consideration you need to keep in mind is that the area where you install these solar modules should have maximum exposure to sunlight. These panels give more than 20% energy efficiency, a tremendous money-for-value investment. If you also want to install these state-of-the-art solar modules in your house or business premises, contact Inter Solar Systems(Since ). We are India&#;s top solar product manufacturer, and we have a wide range of solar PV panels like Mono PERC Solar panles. Our products are the change-over that your business needs. Contact us now and taste the aura of efficient electricity to power your dreams of a better life.
Are you interested in learning more about mono perc panels? Contact us today to secure an expert consultation!