Exploring Bifacial Solar Panels: What You Need to Know

In the ever-evolving world of solar energy, bifacial solar panels are becoming a topic of interest. These panels are unique because they capture sunlight from both sides, offering a potential boost in energy efficiency. But what exactly are bifacial solar panels, how do they work, and are they right for every installation? Let’s take a closer look at their benefits and limitations, and compare them to traditional solar panels to help you decide what’s best for your project.

What Are Bifacial Solar Panels?

Bifacial solar panels are designed to generate power from sunlight hitting both the front and back sides of the panel. Unlike traditional monofacial panels, which only capture light on one side, bifacial panels can absorb reflected light from surfaces like rooftops or the ground beneath them.

These panels usually feature a transparent backsheet or dual glass to allow light to pass through to the rear side. The result is an increase in power output, especially in environments where the ground is highly reflective, such as snowy regions or light-coloured rooftops.

How Do Bifacial Solar Panels Work?

Bifacial panels operate similarly to standard monofacial panels, but with an added efficiency boost due to their dual-sided nature. Sunlight that hits the front of the panel is converted into electricity through photovoltaic (PV) cells, just like with regular panels. However, the back of bifacial panels also contains PV cells, enabling the system to capture ambient light that’s reflected off the ground or surrounding surfaces.

Key Features of Bifacial Solar Panels:

  • Increased Energy Production: The ability to capture sunlight on both sides can lead to a 5-30% increase in energy output, depending on environmental conditions.
  • Durability: Bifacial panels often come with dual-glass construction, making them more durable and resistant to harsh weather conditions.
  • Installation Flexibility: These panels can be installed in various orientations, such as on elevated surfaces, carports, or even as building facades, to optimize rear-side light capture.

Where Are Bifacial Solar Panels Used?


Due to their increased efficiency in capturing sunlight, bifacial panels are often used in commercial and utility-scale projects, where the surface reflectivity can be maximized. For instance, bifacial panels are ideal in:

  • Open fields: Where sunlight can reflect off the ground or water.
  • Snowy regions: Where snow-covered ground enhances reflection.
  • Roof installations: Especially on white or reflective surfaces that bounce more light toward the back of the panel.

Bifacial vs. Regular Solar Panels: What’s the Difference?

While bifacial panels offer some unique benefits, they’re not always the best fit for every project. Here’s how they compare to traditional solar panels.


1. Efficiency

  • Bifacial Panels: Can generate more energy due to dual-sided capture, particularly in high-reflection environments.
  • Traditional Panels: Provide consistent energy generation but capture sunlight only from the front, which works perfectly in standard residential settings.

2. Cost

  • Bifacial Panels: Typically more expensive due to their advanced technology and dual-glass structure.
  • Traditional Panels: More affordable, with a lower upfront cost, making them ideal for homeowners and small-scale commercial installations.

3. Installation Complexity

  • Bifacial Panels: Require careful placement to maximize the benefits of reflected light, which may involve higher installation costs and considerations like spacing, tilt angles, and ground type.
  • Traditional Panels: Easier and quicker to install, fitting seamlessly into most rooftop and ground-mount systems.

Evaluation: Are Bifacial Solar Panels Right for You?


While bifacial panels offer enhanced energy production in the right settings, they may not be the most practical choice for every installation. Their potential depends heavily on environmental factors like surface reflectivity and available space for elevated installations. For many residential and smaller commercial projects, the added cost and complexity may outweigh the benefits.

For most customers, traditional solar panels remain an excellent choice. They are cost-effective, easy to install, and provide reliable energy generation, especially in everyday residential or commercial environments. At Smart4Solar, we offer high-quality regular solar panels that are designed for maximum efficiency and durability, making them a smart and affordable solution for a wide range of applications.


Conclusion

Bifacial solar panels are an exciting advancement in solar technology, offering increased efficiency and versatility in the right circumstances. However, for most residential and small-scale commercial projects, traditional solar panels remain the more practical and cost-effective option. Smart4Solar provides a range of standard solar panels designed to meet your needs with reliability and ease of installation.


If you're considering a solar installation and want to explore which type of panel is right for your project, contact us today for expert advice.

Back to blog