Bifacial Solar Panels: Capturing Sunlight from Both Sides for Better Yields

Joe Brennan
Apr 13, 2023

Are you tired of unsatisfactory yields from your conventional solar panels? We understand the frustration, especially when we discovered that an average solar panel could generate more electricity if it's bifacial.

Dig into this blog and discover how Bifacial Solar Panels, unique in their capacity to capture sunlight from both sides, can significantly boost your energy production. Get ready for a greener future; let's illuminate every corner!

How Bifacial Solar Panels Work?

Bifacial solar panels use a unique design to harness the sun's power more efficiently. They have photovoltaic cells on both their front and back sides, allowing them to capture sunlight from two directions.

This double-sided structure enhances energy production by collecting light that is both direct and reflected. The enhanced performance of bifacial solar panels traces back to their ability to absorb sunlight using perovskite solar cells on both surfaces. In contrast with traditional or monoracial modules, which only expose the front side of the cells, bifacial PV modules interact with rays from all angles. This revolutionary solar technology has significantly improved panel efficiency and overall energy yields.

Advantages of Bifacial Solar Panels

Bifacial Solar Panels capture Sunlight From Both Sides For Better Yields. Moreover,  solar panels offer increased energy generation, more efficient use of space, and installation flexibility.

1) Increased Energy Generation

Bifacial solar panels have a unique design that allows them to generate more electricity than traditional solar panels. They can produce a significantly higher energy output by capturing sunlight from both sides of the panel.

This means homeowners who invest in bifacial solar panels can enjoy increased energy generation, leading to savings on their electricity bills and a greener future for Ireland.

With bifacial PV modules, sunlight is collected from both the front and back sides of the cells, maximising energy production. This innovative technology helps Irish homeowners harness more sunlight and convert it into usable electricity.

Whether for powering appliances or charging electric vehicles, the increased energy generation offered by bifacial solar panels ensures that households can meet their growing power needs efficiently and sustainably.

2) More Efficient Use Of Space

Bifacial solar panels offer more efficient use of space than traditional solar panels. With their unique design, these panels can capture sunlight from both sides, maximising energy generation.

This means they can produce more electricity using the same amount of space, resulting in higher energy output and lower overall costs. By utilising both the front and back sides of the panel, bifacial solar panels optimise sunlight absorption and make the most out of available space.

This makes them an excellent choice for homeowners looking to maximise their renewable energy production without compromising the limited roof or land area.

3) Flexibility In Installation

Bifacial solar panels offer installation flexibility, making them a versatile option for homeowners. These panels can be mounted on various surfaces, including rooftops and open fields.

Their ability to capture sunlight from both sides allows for more options regarding positioning and orientation. Whether you have limited space or specific aesthetic requirements, bifacial solar panels can adapt to your needs.

Additionally, their compatibility with different mounting systems makes the installation smoother and more efficient. With this flexibility, homeowners can optimise the placement of their bifacial solar panels to maximise energy generation and take advantage of available sunlight.

Installation and Utilisation Of Bifacial Solar Panels

Now let's explore the differences between bifacial and monofacial solar panels, the best practices for installation, and their applications in commercial and utility-scale projects.

Read on to discover how to maximise energy generation with these innovative solar panels.

Differences From Monofacial Solar Panels

Bifacial solar panels differ from monofacial solar panels in structure and how they capture sunlight. While monofacial panels only expose the front side of the cells to sunlight, bifacial panels have a unique photovoltaic cell structure that allows them to capture sunlight from both sides.

Bifacial panels can generate more electricity than traditional solar panels, producing higher energy. The use of membranes in bifacial PV projects also helps capture more reflected sunlight, improving the performance of these panels.

Overall, the ability to collect sunlight on both sides makes bifacial solar panels more efficient and effective at generating clean and renewable energy for your home or business.

Best Practices For Installation

To ensure optimal performance and maximise the energy output of your bifacial solar panels, it is important to follow these best practices during installation:

  1. Choose a location with maximum sunlight exposure: Install the panels in an area where they can receive ample sunlight throughout the day. Avoid shading from surrounding buildings or trees.
  2. Optimise tilt and orientation: Position the panels at an optimal angle and orientation to maximise sunlight absorption. This will vary depending on your location, so consult a professional installer for guidance.
  3. Ensure proper panel spacing: Leave enough space between each panel to minimise shading and allow for efficient airflow. This will help prevent heat build-up and improve overall system performance.
  4. Use high-quality mounting systems: Invest in sturdy and reliable mounting systems that withstand weather conditions, such as strong winds or heavy snowfall. This will ensure the longevity and stability of your system.
  5. Regularly clean the panels: Keep your bifacial solar panels clean by regularly removing dirt, dust, or any other debris that may accumulate on their surface. This will help maintain their efficiency and maximise energy generation.
  6. Monitor system performance: Install a monitoring system to keep track of your panel's performance over time. This will enable you to identify issues early on and take necessary actions to optimise energy production.

Applications In Commercial And Utility-Scale Projects

Bifacial solar panels have found wide applications in commercial and utility-scale projects. Their ability to capture sunlight from both sides significantly increases their energy generation potential.

This makes them highly attractive for large-scale solar installations, where maximising energy output is a top priority. In addition, the flexibility of bifacial panels allows for more efficient use of available space, making them suitable for commercial rooftops and utility-scale solar farms.

With technological advancements and efficiency improvements, bifacial solar panels are becoming increasingly popular as a reliable and cost-effective solution for meeting the growing demand for renewable energy in commercial settings.


Bifacial solar panels provide a promising solution for maximising energy generation and efficiency. By capturing sunlight from both sides, these panels offer higher energy yields; bifacial solar panels capture sunlight from both sides for better yields and allow for more efficient use of space.

With advancements in technology and installation practises, bifacial solar panels are becoming an increasingly attractive option for homeowners looking to harness the sun's power.

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Frequently Asked Questions

What are bifacial solar panels?

Bifacial solar panels are photovoltaic modules that can generate electricity from both the front and back sides of the panel, capturing sunlight on both sides. This design allows for increased energy production compared to traditional one-sided solar panels.

How do bifacial solar panels capture sunlight from both sides?

Bifacial solar panels have a transparent back sheet or glass cover, allowing light to pass through and reach the rear side of the cells. The rear side then reflects scattered light or captures direct radiation, enhancing overall efficiency and power generation.

What are the advantages of using bifacial solar panels?

Using bifacial solar panels offers several advantages, including increased energy output due to their ability to capture sunlight from multiple angles. They also perform better in areas with high albedo (reflectivity) surfaces, such as snow-covered ground or water bodies.

Are there any considerations when installing bifacial solar panels?

When installing bifacial solar panels, it is important to consider factors such as mounting height and tilt angle to optimise their performance. Additionally, proper cleaning and maintenance should be conducted regularly to ensure maximum efficiency by removing any dirt or debris that may obstruct light penetration on either side of the panel.

How do bifacial solar panels handle different weather conditions?

Bifacial panels can benefit from various weather conditions. In addition to direct sunlight, they can generate electricity using diffused light on cloudy days or even from the reflected light on snow-covered grounds during the winter. However, they might perform less efficiently in areas with limited sunlight and significant shading.

Are there any limitations to using bifacial solar panels?

While bifacial solar panels offer increased efficiency and yields, their performance heavily relies on the reflectivity of the surrounding surfaces. Therefore, they might not be as effective in shaded areas or places with low reflectivity. Moreover, the installation and maintenance costs for bifacial panels might be higher compared to traditional solar panels due to the additional considerations involved in their deployment.

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*FYI, parts of this blog post were drafted by artificial technlogy. But rest assured, it's been thoroughly researched, edited, reviewed and me & my team.
Author Fahad Zahid
Founder @ Going Solar

Joe Brennan, the founder of Going Solar, is dedicated to making solar power mainstream in Ireland and meet SEAI objectives. With a focus on affordability and sustainability, he is bringing renewable energy solutions to homes, reducing costs & environmental impact.