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Solar Energy Help ASAP

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John has used a solar simulator setup to measure the relation between the voltage and the current of a small photovoltaic cell (40 cm long and 40 cm wide). The measurement setup maintains the standard measurement conditions: the temperature is controlled to 25oC, the incident spectrum is the AM1.5 spectrum and the incident power density is 1000W/m2. The result is illustrated in the figure below.



Calculate the short-circuit current density (in mA/cm2).


John determined that the maximum power he could get out of this module is 19.5 W. Calculate the fill factor of the module (in %).


What is the efficiency of the module (in %)?


John decides to connect two of these modules with strips. This results in an additional 2mΩ series resistance loss. Which is the new fill factor (in %)? (Hint: use the voltage drop at the maximum power point).

  • Solar Energy Help ASAP -

    first answer is 25

  • Solar Energy Help ASAP -

    Can you also give the rest of the answers?? thanx

  • Solar Energy Help ASAP -

    Help on the rest???? Thanks

  • Solar Energy Help ASAP -

    None of the other answers are 6...

  • Solar Energy Help ASAP -

    Someone can give me a hand?

  • Solar Energy Help ASAP -

    second answer: 81.25
    third answer: 12.187

  • Solar Energy Help ASAP -

    Just need the last one now....Someone???? the fourth answer

  • Solar Energy Help ASAP -

    someone can help???

  • Solar Energy Help ASAP -

    4th ans is 62.

  • Solar Energy Help ASAP -

    Solar simulators are used to study the performance of solar cells in the lab. In the figure below (left picture), the spectral power density of a solar simulator is shown with the blue line. The spectral power density of this solar simulator is given by:

    P(λ)=7.5∗1015λ−2.25∗109 [Wm−2m−1] for 300nm<λ<500nm

    P(λ)=2.25∗109−1.5∗1015λ [Wm−2m−1] for 500nm<λ<1500nm

    Where the wavelength λ is expressed in meters.



    a) calculate the irradiation I of the solar simulator (in Wm−2 )

    incorrect
    b) What is the photon flux of the solar simulator (in 1021m−2s−1)?

  • Solar Energy Help ASAP -

    Hi Ratan how did get 62 for the 4th answer?

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