What are bifacial solar panels, and do they offer substantial benefits? Let’s explore their advantages, disadvantages, and costs to see if they're the right choice for you.
Solar panels may seem identical at first glance—just sleek sheets that soak up the sun. However, not all solar panels are created equal.
Some are simply superior, packing more punch and giving their owners a fantastic return on investment.
Now, you might be wondering, "How much more energy can bifacial solar panels actually generate and are they really worth the extra dough?"
In this guide, we're diving into the world of bifacial solar panels and we'll uncover whether these high-performing marvels truly deliver enough bang for your buck to make the investment worthwhile.
PS We offer MCS-certified solar panel installation nationwide. Simply answer these questions, get your fixed price and arrange your free design.
What are Bifacial Solar Panels?
Let's start with the basics: What exactly are bifacial panels?
Bifacial panels are similar to standard solar panels but with a key difference. Instead of a plain plastic back sheet, bifacial panels feature a second layer of solar receptors on the rear side.
This innovative design allows them to capture residual ambient light that bounces back from the surrounding environment, enhancing the panel's overall performance.
By utilising both sides, bifacial panels significantly increase energy efficiency compared to traditional models.
How do Bifacial Solar Panels Work?
When light interacts with a solar cell, it activates electrons within the cell's material. This activation generates energy, which is then harvested as DC current.
While solar cell efficiency is generally consistent across various panels, the power output is constrained by the physical size or the number of cells on the panel.
To overcome this limitation, some manufacturers have ingeniously utilised the back of the panel.
This innovation increases the surface area exposed to light, thereby boosting the energy harvested.
The most effective bifacial panels enhance light absorption by incorporating clear intersections or cell dividers.
A prime example of this technology is REA's Fusion2 solar panels, which are among the leaders in maximising light utilisation and energy efficiency.
Explore a Solar Case Study: Check out an insightful Q&A session featured in one of our detailed case studies on domestic solar panels. Hear directly from a Heatable customer in the UK and gain valuable perspectives on their experience here.
The image above shows a 23-panel solar installation, carried out by the MCS-certified solar team at Heatable, featuring the bifacial REA Fusion2 solar panels.
How much more energy can you gain vs monofacial panels?
This very much depends on the ratings of the panel and the quality of manufacturing.
However, Heatable installed a standard monofacial panel as a temporary measure on one of our installations and saw a 20% decrease in power production when compared to the REA Fusion2 Bifacial panels.
PS You can learn all about bifacial solar panels in our YouTube video below:
Pros & Cons of Bifacial Panels
Bifacial solar panels are quickly gaining popularity across the UK. However, like any product, they come with their own set of advantages and drawbacks.
We’ve summarised the pros and cons in the table below:
Pros of Bifacial Solar Panels: | Cons of Bifacial Solar Panels: |
Fully enclosed cells with two sheets of glass, front and rear | This increases weight a little by 2kg per panel |
Up to 20% more energy generation compared to monofacial | Bifacial panels are around 15% more expensive compared to standard panels of equivalent quality |
For every 5 panels, the 6th is free (when you consider the extra performance) | The price may be the same for 6 standard panels as it is 5 bifacial panels |
Bi-facial panels have a longer warranty (25 years) | True, but they are 15% more expensive to buy |
Advantages of Bifacial Solar Panels
Enhanced Durability
Bifacial panels feature fully enclosed cells, sandwiched between two layers of tempered glass on both the front and the rear.
This tempered glass is not only weather-resistant but also UV-resistant, capable of withstanding high temperatures and strong winds.
Thanks to their robust construction, bifacial solar panels are expected to boast longer lifespans.
Get your best solar deal now, or find out more about how much energy solar panels produce.
Increased Efficiency
In comparison to standard monofacial designs, you can expect up to 20% more energy generation with bifacial designs.
Disadvantages of Bifacial Solar Panels
More Expensive than Monofacial Panels
Bifacial panels are generally more expensive than traditional monofacial panels, but due to the increased power generation, they are a worthy investment.
These higher costs include higher manufacturing costs due to the need for more advanced materials and technology.
Maintenance & Cleaning
Both sides of bifacial panels need to be kept clean to ensure optimal performance, which can double the maintenance efforts compared to monofacial panels.
Dirt, snow, and other debris on the backside can significantly reduce their efficiency, so their performance will need to be monitored and any potential obstructions will need to be removed.
Find out more about which brands offer the most efficient solar panels in the UK.
Bifacial Solar Panels FAQ
Which manufacturers offer bifacial solar panel designs?
Currently, only a select few solar panel manufacturers offer bifacial models, including industry leaders like REA, LG, Canadian Solar, Longi, Trina Solar, and Yingli Solar. However, the solar industry is dynamic and continuously evolving.
As demand for bifacial panels grows, it's likely that more manufacturers will begin to offer these advanced, efficient options in the near future. Keep an eye on this space for exciting developments as this technology becomes more mainstream.
If you are researching solar panel companies, you may find our resources valuable. Check out our comprehensive comparison of the best solar panel companies in the UK, learn about the Distribution Network Operator (DNO) process, and explore our detailed solar panel guide and solar advice section for expert insights and recommendations.
Next Steps For Your Solar Journey:
When planning to install solar panels for your home, there are several important factors to consider. Make sure to refer to the following guides to help you make informed decisions:
To dive deeper into these topics, head over to our advice section, check out our YouTube channel for informative videos, or read a customer case study to see how others have benefited from their solar installation.
Get a Quote for Solar Today
Without boasting you should get your solar installed with us, here's why:
Thousands of Happy Customers: We boast an average score of 4.9 on Trustpilot, outperforming the market leader.
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MCS Accredited: Our accreditation by the Microgeneration Certification Scheme (MCS) ensures high-quality standards.
Exclusive Panels: We offer REA Fusion solar panels, available only through Heatable.
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Save Your Quote: You can save your quote and decide later.
Bespoke Design Tool: Draw your own conclusion (literally) on whether solar is worth it for you, here.
