Shell PowerMax Ultra 80-P panels date code

James
James Solar Expert Posts: 250 ✭✭
in Advanced Solar Electric Technical Forum #1
Does anyone here know how to determine mfg date on a Shell Solar PowerMax Ultra 80-P?
No date on label. Maybe part of serial number?
Thanks
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  • Vic
    Vic Solar Expert Posts: 3,208 ✭✭✭✭
    #2
    Hi James,

    These PVs date from about 2004.

    May one ask,  why does this matter at this point?

    When we bought a number of SQ-175s,  in 2005,  the 36 Cell SQ-85s were in production.

    Mindless folks Want To Know!    Vic
    Off Grid - Two systems -- 4 SW+ 5548 Inverters, Surrette 4KS25 1280 AH X2@48V, 11.1 KW STC PV, 4X MidNite Classic 150 w/ WBjrs, Beta KID on S-530s, MX-60s, MN Bkrs/Boxes.  25 KVA Polyphase Kubota diesel,  Honda Eu6500isa,  Eu3000is-es, Eu2000,  Eu1000 gensets.  Thanks Wind-Sun for this great Forum.
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  • James
    James Solar Expert Posts: 250 ✭✭
    #3
    It matters because i was curious to know the mfg date for no other reason than to see how old they are as i check output performance.
    Having just picked them up for free and not having purchased them new, i do not know the history and was curious how good or bad they are for their age. 
    Physically, they are in great condition.

    I also check my KC130 array panels once each year to monitor performance.
    Call that crazy if you feel inclined, but I am interested in monitoring performance as panels age.



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