What happens to a panel with sun on it when not connected?

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ollyomm
ollyomm Registered Users Posts: 10 ✭✭
in Solar Beginners Corner #1
I do try to avoid this happening but Im curious as to what happens if anything?
Does it damage the panel in any way? overheating?
Eg, having mounted it on the roof and the delay in connecting and soldering cables 
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  • mcgivor
    mcgivor Solar Expert Posts: 3,854 ✭✭✭✭✭✭
    #2
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    It's not something to be overly concerned with, electrically the will have no load, so no current flow and since they are designed to sit in the sun for 25+ years and still peform, negligible degredation will occur.
    1500W, 6× Schutten 250W Poly panels , Schneider MPPT 60 150 CC, Schneider SW 2524 inverter, 400Ah LFP 24V nominal battery with Battery Bodyguard BMS 
    Second system 1890W  3 × 300W No name brand poly, 3×330 Sunsolar Poly panels, Morningstar TS 60 PWM controller, no name 2000W inverter 400Ah LFP 24V nominal battery with Daly BMS, used for water pumping and day time air conditioning.  
    5Kw Yanmar clone single cylinder air cooled diesel generator for rare emergency charging and welding.
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