Solar Panel Question

Solar Panel Question

If a solar panel says 300 watts but has a cell efficiency of 21.65 and a module efficiency of 18.33% then do the efficiency numbers matter more or the watts? Or are the watts and the efficiency indicating the same thing?

I read and understood it as they rate the panels based on 1 square meter with 1000 watts of light shining on it if it produces 300 watts that means an efficiency of 30% but I guess this isn't always the case?

Ex. http://ift.tt/2xBMhrA

submitted by /u/Nyxtia
[visit reddit] [comments] http://ift.tt/2jVCpnu

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