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Solar kwh production as % of capacity - Winter vs Summer

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  • 21-01-2022 6:40pm
    #1
    Registered Users Posts: 729 ✭✭✭


    Just wondering what people are seeing in terms of production in winter vs summer when compared to their potential production capacity. So if I had 12 panels rated at 4kw (which I assume is at 100% efficiency), what is that like in reality Ireland in mid December?

    If you really wanted to run a large household on solar all year round, what size system to you really need? Excluding heating.



Comments

  • Moderators, Home & Garden Moderators Posts: 5,904 Mod ✭✭✭✭graememk


    The site most of us use for prediction is linked below. It's quite accurate. That being said, to cover year round you'll need a lot for winter but way too much in the summer

    https://re.jrc.ec.europa.eu/pvg_tools/en/#PVP



  • Registered Users Posts: 2,486 ✭✭✭ECO_Mental


    Even better.!..look at the sticky thread on the top of this forum. The boards users here have entered detailed statistics of their systems on a Google Excel Sheet for sharing including their monthly production for 2021. You should be able to find a system on there that will have the particular needs you are looking for.

    https://www.boards.ie/discussion/2058225023/solar-performance-spreadsheet-analysis-and-data-sharing/p1

    ***Please download the google sheet to your own computer if you are going to do any filtering or messing around with it.* thanks


    6.1kWp south facing, South of Cork City



  • Registered Users Posts: 1,470 ✭✭✭MAULBROOK


    This could help. 6.2kw SE North Wexford .

    Yes the winter months are low production but look at it this way, their is still production. Ireland is not that bad for solar PV



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