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Capping inverter to 3.68kw

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Hi folks,

I had a 5kw inverter installed last week. I don't have the approvals to feed in more than the 3.68 limit.

My question is - how is the 'cap' put in place? I saw the guys installing the system - they took the inverter out the manufacturer's sealed box, mounted it, plugged in - and that's it. I didn't see anything suggesting they changed a setting or anything.

While highly unlikely I'll get >3.68 with my E-W install, just want to make sure I'm not risking breaking any 'rules.'

Thanks!
5.41 kWp System, E-W. Installed Nov 2017
Lux + 3 x US2000B + 2 x US3000C battery storage. Installed Mar 2020.

Comments

  • Martyn1981
    Martyn1981 Posts: 15,394 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    Is it a Solaredge inverter? If so, I think each press of the scroll arrow/button will give you different information, and one of the pages says 'limit' (possibly top line of that page), or at least it does on mine, and next to that is 3.7kW.

    Have a play and see what pops up!
    Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
  • Martyn1981 wrote: »
    Is it a Solaredge inverter? If so, I think each press of the scroll arrow/button will give you different information, and one of the pages says 'limit' (possibly top line of that page), or at least it does on mine, and next to that is 3.7kW.

    Have a play and see what pops up!

    It's a solax. I've gone through the settings - it only shows generation figures voltages etc - nothing around limits!
    5.41 kWp System, E-W. Installed Nov 2017
    Lux + 3 x US2000B + 2 x US3000C battery storage. Installed Mar 2020.
  • Merlin139
    Merlin139 Posts: 7,259 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Photogenic
    Martyn1981 wrote: »
    Is it a Solaredge inverter? If so, I think each press of the scroll arrow/button will give you different information, and one of the pages says 'limit' (possibly top line of that page), or at least it does on mine, and next to that is 3.7kW.

    Have a play and see what pops up!

    Just been and checked my Solaredge and its set at 4.2kW
    3.795 kWp Solar PV System. Capital of the Wolds

  • Martyn1981
    Martyn1981 Posts: 15,394 Forumite
    Part of the Furniture 10,000 Posts Name Dropper Photogenic
    Merlin139 wrote: »
    Just been and checked my Solaredge and its set at 4.2kW

    Shush, or everyone will want one!
    Mart. Cardiff. 8.72 kWp PV systems (2.12 SSW 4.6 ESE & 2.0 WNW). 20kWh battery storage. Two A2A units for cleaner heating. Two BEV's for cleaner driving.

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
  • Shucks... I found the limit in an installer setting. Mines not capped!
    5.41 kWp System, E-W. Installed Nov 2017
    Lux + 3 x US2000B + 2 x US3000C battery storage. Installed Mar 2020.
  • ASavvyBuyer
    ASavvyBuyer Posts: 1,737 Forumite
    Fifth Anniversary 1,000 Posts Name Dropper
    Merlin139 wrote: »
    Just been and checked my Solaredge and its set at 4.2kW

    Checked ours this morning, and it also says "Limit 4.2kW". Is the "Limit" actually the capping "Limit" or the maximum it can handle before shutting down (because of overload) ?
  • gefnew
    gefnew Posts: 931 Forumite
    Part of the Furniture 500 Posts Name Dropper
    Hi all
    checked mine and is also set at 4.2kw
    sma 4000-20tl
    regards
    gefnew
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