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xzyHollyxyz's avatar
xzyHollyxyz
Explorer
Aug 15, 2014

Solar Panel Spec - Can Someone Please 'Splain?

I was looking again at the specs on my new flexible solar panel: 21.7 Open Circuit Voltage 6.10A Short Circuit Current 19.9% Cells Efficiency 5.70A Optimum Operating Current 17.7V Optimum Opera...
WyoTraveler's avatar
WyoTraveler
Explorer
Aug 15, 2014
mitch5252 wrote:
So, is 19.9% a good number?


There is a formula for that.

efficiency % equals power output divided by incident radiation flux times area of collector

If I recall 40% is common. Newer ones higher. Suspect soft type less efficient. JMHO

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