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Pv Use

  • 11-11-2020 10:24AM
    #1
    raytaxi
    Registered Users, Registered Users 2 Posts: 472 ✭✭


    If I install a small system 2.5Kw how does it work. I mean if i put on kettle that's 3Kw does it take from panels first then rest from grid, or does it pull from grid as not enough from panels ?
    Was explain by one installer that first is correct but i thought it was latter.
    Has anyone any recommendations for Installers in North east pm if possible.


Comments

  • #2
    KCross
    Registered Users, Registered Users 2 Posts: 7,378 ✭✭✭KCross


    Your installer is correct. What you produce locally will be used first and the shortfall will be made up by the grid. Its not a one or the other thing... both work together but your local production will get used first.


  • #3
    raytaxi
    Registered Users, Registered Users 2 Posts: 472 ✭✭raytaxi


    Ok thanks for that


  • #4
    unkel
    Registered Users, Registered Users 2 Posts: 60,098 ✭✭✭✭unkel


    Look at it this way. Your kettle doesn't care where it gets its electricity from. It will just look for 3kW. If the rest of your house is using 0.5kW at the time and your solar is producing 2kW at the time, then your house will take 1.5kW from the grid (3 + 0.5 - 2)

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  • #5
    Gumbo
    Moderators, Society & Culture Moderators Posts: 41,412 Mod ✭✭✭✭Gumbo


    raytaxi wrote: »
    If I install a small system 2.5Kw how does it work. I mean if i put on kettle that's 3Kw does it take from panels first then rest from grid, or does it pull from grid as not enough from panels ?
    Was explain by one installer that first is correct but i thought it was latter.
    Has anyone any recommendations for Installers in North east pm if possible.

    And be mindful that a 3kw system will not be producing 3kw all the time.


  • #6
    raytaxi
    Registered Users, Registered Users 2 Posts: 472 ✭✭raytaxi


    Yeah I understand its peak output, most of the time be less
    Gumbo wrote: »
    And be mindful that a 3kw system will not be producing 3kw all the time.


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  • #7
    Rzeznik
    Registered Users, Registered Users 2 Posts: 38 ✭Rzeznik


    raytaxi wrote: »
    Yeah I understand its peak output, most of the time be less

    During winter it is a lot less ;)
    Nov'20 daily total with my 2.48kWp:
    01.11.2020 1,4 kWh
    02.11.2020 2,3 kWh
    03.11.2020 3 kWh
    04.11.2020 2,5 kWh
    05.11.2020 1,9 kWh
    06.11.2020 3,7 kWh
    07.11.2020 1,2 kWh
    08.11.2020 2 kWh
    09.11.2020 1,1 kWh
    10.11.2020 1 kWh
    11.11.2020 0,2 kWh
    12.11.2020 1,6 kWh
    13.11.2020 1,9 kWh
    14.11.2020 1 kWh
    15.11.2020 0,7 kWh


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