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Solar panel angle

Discussion in 'Photovoltaics' started by Gymy Bob, Dec 26, 2004.

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  1. Gymy Bob

    Gymy Bob Guest

    Would the power output from a solar array be linearly relative to the cosine
    of the angle error between the current perpendicular to the sun angle, and
    actual solar panel placement angle ?

    Is there other factors or is it that simple? Anybody doen some experiments
    or logged some results?
     
  2. A starting resource is:
    http://rredc.nrel.gov/solar/

    There are three basic components to sunshine:
    - Direct Beam, varies as you state
    - Diffuse sky, reflections from clouds, the blue sky. There are
    several mathematical models for this.
    - Ground reflection (albedo)

    The output of a solar array is also temperature dependent. Ambient
    temperature and temperature rise due to the heating by the sunshine
    must be considered, along with cooling by wind.
    Bill Kaszeta
    Photovoltaic Resources Int'l
    Tempe Arizona USA
     
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