What Is a Good Solar Panel Efficiency? | The 2023 Updates

Solar panel efficiency is a measure of how well a solar panel can convert sunlight into electricity. Usually expressed as a percentage, it can range from 6.8% for old technology to 22.8% for more modern, high-efficiency panels. There are several factors that determine the efficiency of a solar panel, including the type of material used, the design of the panel, and the manufacturing process. 

Nonetheless, what is good solar panel efficiency, and how do you get the best solar panels for your business? That the highest number will mean the most efficient panel, and seemingly that looks like the best option. However, it might not make the best monetary or managerial sense for you.  

Factors That Affect Solar Panel Efficiency

The design of the solar panel is an aspect that will impact its efficiency. The layout of a solar panel may influence how sunlight is absorbed as well as the panel’s temperature. Keeping the panels cool under the scorching sun is the key to getting the most out of them. That’s why the ‘temperature coefficient’ is an important aspect to look for when solar shopping. Also, a panel that is made to reduce shade, for instance, will function more efficiently than one that does not.

The efficiency of a solar panel can also be impacted by how it is made. A solar panel that is made with high-quality components and cutting-edge methods will be more effective than one that is made with inferior components or less sophisticated methods. Most solar panels used at the moment around the globe are mostly made of silicon, but the difference is in the way it is laid out. There are two types of silicone-made solar panels mainly, which are –  

  • Monocrystalline solar panels– Made from solid silicon ingots 
  • Polycrystalline solar panels – Made from small crystals of silicon 

However, it is important to note that while efficiency is an important factor, it is not the only factor to consider. Other important factors to consider are the cost of the panel, the warranty, and the overall quality of the panel. 

solar panels type

Recent Developments in Solar Panel Technology

Significant strides in solar cell technology have been made recently, resulting in higher efficiency. For instance, multi-junction cells integrate many layers of semiconductor material to absorb various solar spectrums, leading to better efficiency. Perovskite solar cells are a novel technology as well. Perovskite cells can potentially be even more effective than silicon cells since they are constructed of a substance that is less expensive and simpler to create. 
Researchers are also looking for methods to make the current solar cell technology more efficient in addition to these new ones. For example, scientists are exploring ways to improve the way that sunlight is absorbed by solar cells, as well as ways to reduce the amount of heat that is generated by the cells.

How To Increase Solar Panel Efficiency

Here are some methods-


Utilizing concentrators is another approach to boost the effectiveness of solar panels. Sunlight is focused onto more compact solar cells using concentrators that employ mirrors or lenses. This has the potential to dramatically enhance the quantity of energy generated by a solar panel, but it also necessitates the use of exact tracking technologies to guarantee that the sunlight is always directed onto the cells.


Using a process known as “doping” is another way to boost performance. Doping is the process of introducing minute quantities of contaminants to the semiconductor substance used in solar cells. This may alter the material’s electrical characteristics, enabling it to absorb more sunlight and generate more power.

Anti-reflection Coating

Another way to increase the efficiency of solar panels is by using a technique called “anti-reflection coating.” Anti-reflection coating involves coating the solar cells with a thin layer of material that reduces the amount of sunlight that is reflected away from the cells. This can significantly increase the amount of electricity produced by a solar panel.

Light Trapping

By adopting a method known as “light trapping,” solar panels may also be made more effective. Utilizing a textured surface on solar cells to capture more light and direct it toward the active layers of the cell is known as light trapping. A solar panel’s ability to produce more power may be considerably increased by doing this.
Additionally, employing strategies like back contact cells, which do away with the metal grid lines that can occasionally block some of the sunlight that strikes a solar cell, can boost the efficiency of solar panels. This increases the amount of sunlight that reaches the active layers of the cell, increasing the amount of electricity produced. Utilizing strategies like bifacial cells, which can collect sunlight from both the front and the rear of the cell, can increase the effectiveness of solar panels. The quantity of energy produced rises as a result of more sunlight being able to reach the cell’s active layers.
Finally, it’s critical to remember that solar panel efficiency is not the only aspect to consider when selecting a solar panel. Other crucial factors to consider are the panel’s price, warranty, and general quality. The solar panel’s effect on the environment must also be considered, and it must be produced in a sustainable and ethical manner.
Which solar panel is the most efficient for business

Which Solar Panel Is the Most Efficient for Business

The most efficient solar panel for a business will depend on a variety of factors, including the specific needs of the business, the location of the business, and the budget of the business. However, some of the most efficient solar panels currently available on the market include the following: 

  • SunPower X22: This panel has an efficiency of 22.8%, which is one of the highest efficiencies available for a commercial solar panel. 
  • LG NeON R: This panel has an efficiency of 22.4%, and it is designed to perform well in low-light conditions, making it a good option for businesses in areas with less sunlight. 
  • Jinko Solar Cheetah HC: This panel has an efficiency of 21.2%, and it is a good option for businesses that have limited space for solar panels, as it has a high power density. 
  • Canadian Solar: This panel has an efficiency of 20.5%, and it is designed to perform well in high-temperature conditions, making it a good option for businesses in hot climates. 
  • Trina Solar TALLMAX Plus: This panel has an efficiency of 20.4%, and it is designed to be durable and long-lasting, making it a good option for businesses that want a reliable solar panel. 

It’s important to note that efficiency is not the only factor to consider when choosing a solar panel for a business. Other important factors include cost, warranty, and overall quality of the panel. It is also important to consult with a solar energy professional to determine the best solar panel solution for your specific business needs. 

How Solar Panels Work

Solar panels, also known as photovoltaic (PV) cells, convert sunlight into electricity. They consist of a layer of semiconductor material, typically silicon, that is sandwiched between positive and negative layers. When sunlight strikes the panel, it causes a flow of electrons within the semiconductor material, generating a direct current (DC) of electricity. 

The DC electricity is then sent through an inverter, which converts it into alternating current (AC) electricity. The AC electricity can then be used to power your businesses or be fed back into the grid. The process of converting sunlight into electricity is known as the photovoltaic effect. When sunlight, which is made up of photons, strikes the semiconductor material, it causes the electrons in the material to become excited and move around. This movement of electrons generates an electrical current. 

It’s important to note that solar panels only produce electricity when they are exposed to sunlight, so they are typically combined with a battery storage system to ensure a consistent power supply even during periods of low sunlight, such as at night or on cloudy days. 

Overall, solar panels are a clean and renewable source of energy that can help reduce dependence on fossil fuels and lower the overall environmental impact of electricity generation. They have a wide range of applications, from powering homes and businesses to providing electricity to remote areas without access to the traditional power grid. 

Want to enjoy all the amazing perks of solar? Get in touch with us today to unlock a FREE of cost consultation session with the industry’s best engineers.  

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