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What Is A Black On Black Solar Panel?

What Is A Black On Black Solar Panel?

Black on black” solar panels are created by replacing the frame of a standard monofacial monocrystalline panel, which primarily captures sunlight from one side (unlike bifacial panels), with a black frame in lieu of the standard silver one. These panels employ monocrystalline solar cells, recognized for their deep blue color, which closely resembles black. The transformation extends to the replacement of the conventional white backsheet with a black one. Furthermore, all the interconnecting wires, conventionally featuring a silverish appearance, are coated with a material that matches the black backsheet. In essence, it commences with the typical deep blue or black-appearing monocrystalline cells, optimized for one-sided sunlight absorption, and culminates in a seamless all-black design achieved through these modifications. This meticulous process maintains the efficiency of the monocrystalline solar cells while enhancing the panel’s aesthetic appeal, resulting in a cohesive, all-black look.

  • What Is A Black On Black Solar Panel?
  • What Is The Efficiency Difference Between Black On Black And Regular White Back Sheet Solar Panels?
  • Conclusion
white clouds and blue sky during daytime

What Is The Efficiency Difference Between Black On Black And Regular White Back Sheet Solar Panels?

The efficiency difference between a “black on black” monocrystalline solar panel and a regular monocrystalline panel with a white backsheet is typically minimal, with the “black on black” panel being slightly less efficient. The efficiency difference primarily arises from the color and design of the backsheet, which can affect the panel’s ability to capture and convert sunlight into electricity. Here’s a general idea of the efficiency difference:

  1. Black on Black Monocrystalline Panel: The dark or black backsheet used in “black on black” panels can absorb more heat from sunlight. When a solar panel becomes hotter, it can experience a reduction in efficiency. This heat-related efficiency loss can be up to approximately 0.5% to 1%. Additionally, the black backsheet may reduce the panel’s ability to reflect and trap light, resulting in a slightly lower photocurrent and, subsequently, lower absolute efficiency. This effect can amount to an additional reduction of up to 1-2%.
  2. Regular Monocrystalline Panel with White Backsheet: Panels with a white backsheet tend to reflect more light, reducing the heat buildup in the panel. As a result, they are less prone to heat-related efficiency losses. While there is still some small loss of efficiency due to temperature, it may be slightly lower compared to “black on black” panels.

Therefore, the efficiency difference between the two types of panels is typically in the range of 1% or less. However, it’s important to note that this difference may vary depending on the specific manufacturer, design, and technological advancements they incorporate. Some manufacturers have developed ways to mitigate the efficiency losses associated with “black on black” panels by incorporating better cooling and light-trapping technologies.

When choosing between these two panel types, it’s a good idea to consider the aesthetic preferences for your installation along with the nominal efficiency difference, as the performance variation is relatively small in most cases.


Ultimately, the choice between these two panel types should consider the specific requirements and priorities of your solar installation. If aesthetics and visual harmony with your environment are crucial, “black on black” panels may be the preferred option. On the other hand, if maximizing efficiency is your primary concern and you’re less concerned about appearance, traditional white backsheet panels could be a better choice.

It’s important to evaluate efficiency ratings, technological advancements, and manufacturer specifications when making your decision. Keep in mind that the efficiency difference is generally modest, and the long-term performance and energy production of the panels can be influenced by various factors, including location, climate, and maintenance. Therefore, choosing the right panel should be based on a careful balance between aesthetics and performance that aligns with your specific needs and preferences.

Please don’t hesitate to get in touch with us here at IOTG Solar for a comprehensive discussion and access to expert advice tailored to your specific solar energy needs. It’s our passion to empower you with sustainable energy solutions.

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