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Published on July 7th, 2012 | by Nicholas Brown

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Double-Sided Solar Cells from BSolar Produce Up to 50% More Energy

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July 7th, 2012 by
 
 
Double-sided (otherwise known as bifacial) solar cells are capable of generating electricity from sunlight received on their front size, but also from leftover sunlight that diffused and/or reflected by using the back side (second side) of the cell.

Solar panels of this type have been under development for decades, but they have generally been too expensive to compete with conventional solar panels. BSolar, however, recently announced that it has developed double-sided solar panels that produce 50% more power than conventional panels in vertical installations. It says that they are also more affordable than traditional double-sided panels.

According to the company, these monocrystalline panels”provide 10-30% higher energy per KWp installed in standard applications, and up to 50% in vertical installations, resulting in an equivalent cell efficiency of 21%-24% in standard applications and a total module power of 280-325 Watts for 60-cell modules.

According to GigaOM, the secret to these double-sided solar panels is the use of boron instead of aluminium. According to TreeHugger, BSolar has been able to bring the cost of these double-sided solar cells down to a competitive level, because their cells generate more electricity per square metre.

BSolar has already been called upon to provide 730 kW of panels for an installation in Japan. Several solar cell manufacturers are going to use BSolar cells in their panels, as well.

For more of the basics of how solar panels work, you may want to check out Glenn’s primer on that (linked above).

Source: TreeHugger
Photo Credit: Bsolar

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About the Author

writes on CleanTechnica, Gas2, Kleef&Co, and Green Building Elements. He has a keen interest in physics-intensive topics such as electricity generation, refrigeration and air conditioning technology, energy storage, and geography. His website is: Kompulsa.com.



  • Pingback: bSolar Introduces High-Efficiency Bifacial Silicon Solar Cells and Modules in the US

  • Dadsolar

    Too bad BP has left the PV business …

    • http://cleantechnica.com/ Zachary Shahan

      i think you misread — BSolar is not BP Solar: http://www.b-solar.com/

      • Dadsolar

        Thanks, I must have … the other fact is that because the thin-film may have a lower efficiency rate, you may be better off to add more PV modules, than use the double sided PV, especially in the mid latitudes … Sorry for the miss-read, I do appreciate that point … !

        • Dadsolar

          If they are mono-crystalline, they may have a beneficial aspect … thanks again !

        • http://cleantechnica.com/ Zachary Shahan

          No prob. I had to double-check. :D

          And yeah, I think where people have enough space, convention PV panels will trump these. But I’m not technically advanced enough to make any claims. :D

  • Dave keen

    Sound like a good idea, but it would be better just to have more solar panel mounted around the place, you never will achieve max power out of the solar cell in this setup.

    • Ross

      With the important caveat in that case that space isn’t a contraint for those planning the installation.

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