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First Solar, Inc. Message Board

  • jackgotney jackgotney Dec 10, 2012 4:33 PM Flag

    $0.45 per watt and 20% PCE Thin Film Solar Breakthrough

    Is this of interest to FRSL? I know FSLR has been whittling away at costs:
    Global Photonic Energy Corp unveils potential grid parity GaAs solar cell - they are an IP licensing company.
    Dec 10, 2012
    The cell which reuses gallium arsenide is 20 percent efficient and is ultra-lightweight and flexible and has a potential of $0.45 per watt
    Global Photonic Energy Corporation ("GPEC"), a developer of a sustainable Organic Photovoltaic technology, has demonstrated a thin-film solar cell that could provide electricity at grid parity, or the cost of traditionally provided electricity.

    Stephen R. Forrest of the University of Michigan says the breakthrough, presented at the Fall Meeting of the Materials Research Society, is the result of substantially reduced production costs.

    It is based on a patent-pending invention that reuses the same GaAs wafer multiple times to produce solar cells. This unlimited wafer reuse approach to conventional "epitaxial lift off" technology typically leads to wafer damage. Hence a very limited number (1 to 2) of wafer reuses, has the potential to reduce the cost of a typical GaAs solar cell to below $1 per Watt (peak).

    "This exciting development implies that ultra-high efficiency solar cells based on gallium arsenide can eventually produce electricity at or below grid parity." Forrest states. "Using integrated solar concentrators and our adhesive-free, cold-weld bonding technology to plastic substrates, we estimate electricity could be produced as low as $0.45 cents per Watt, compared to traditional grid parity of $1 per Watt."

    "This is a historic development for GPEC," states Dean Ledger, President and CEO of GPEC. "In addition to its dramatically reduced cost structure, this demonstration in the University of Michigan laboratories can be used for numerous applications because these high-efficiency solar cells, deployed on roll-up plastic sheets, are ultra-lightweight and flexible. These applications include use in off-grid locations, spot powering of vehicles, mobile military equipment and satellites." Ledger says GPEC will commercialise its technology through licensing of its intellectual property, becoming part of its foundational portfolio of more than 425 patents.

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    • FSLR could choose to use the technology. Notice it states it could reach .45 cents per watt. I believe FSLR is shooting for .65. I question the use of plastic in high temp settings. Most plastic I see tend to cloud up after a few years. FSLR may also take a look at Corning's new bending glass that can be put on a roll.

      • 2 Replies to gar4one
      • Thanks for the responses - maybe a lot of new apps wll appear as cells become flexible and light weight and more efficient. Maybe there should be a focus on bringing down the installation costs! It would seem that would be easier than even improving solar manufacturing costs. The payback would not be to the OEM except indirectly as demand would increase if the end user could afford it all in.

      • Jinko Solar have reached production costs of 0.52 $/Watt and Polysilicium costs of only 14 Cent/Watt in Q3 2012. F.e. Trina 0,24 Cent/Watt. Now 1 Billion $ new Credit from CDB.

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