I am currently reviewing an existing solar power system for the Huntington Lighthouse. Our system is powered by three Solar module SM46 panels. installed as "spares" by the USCG during their last rework of the power for the light itself. The light is still an official and active aid to navigation.
My issue is the current output of these panels. They are rated for 46 watts or 3.15 amps at 14.6 volts. However, the Voltage-current characteristic curve (at same irradiance) indicates a current of half this value.
Does anyone know why this discrepancy exists? Is there some other factor I am unaware of?
My issue is the current output of these panels. They are rated for 46 watts or 3.15 amps at 14.6 volts. However, the Voltage-current characteristic curve (at same irradiance) indicates a current of half this value.
Does anyone know why this discrepancy exists? Is there some other factor I am unaware of?
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