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smallest 300w solar panel on market

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  • #32
    unkel
    Registered Users, Registered Users 2 Posts: 65,703 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    air wrote: »
    However the extra efficiency alone still justifies the premium in many cases.

    That indeed is your original point. That a 350W standard panel is a no brainer to buy over a 320W standard panel. At a premium.

    Yet you haven't shown any example of any single case - let alone many cases.

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  • #33
    air
    Registered Users, Registered Users 2 Posts: 2,830 ✭✭✭air


    It's not my job to teach you basic maths, if you can't appreciate that 350W > 320W I can't do anything further to help you.

    The marker buoys I've shown are a perfect example of an application where every bit of energy available is critical.
    In winter time when days are short and dark and nights (when navigation lights are needed) are long, PV is always going to struggle and every possible way to boost output has to be taken.

    Swapping out those panels would likely cost thousands per buoy, if you were a designer on the job and were found to have skimped on €100 per buoy for a 10% loss in performance you wouldn't be too long in a job.

    That extra 30W of capacity would be very welcome in January in December.
    Per PV GIS with a 120Wh daily load, moving from a 320W panel to a 350Wh one, reduces the days when a 600Wh battery would run out from 1.34% to 0.27% - which is a 5 fold improvement in reliability.

    But only an idiot would pay an extra €100 for that on a probable €3000 job I guess.


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