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Brand batteries vs DIY batteries

  • 11-09-2024 8:27pm
    #1
    canc3r12
    Registered Users, Registered Users 2 Posts: 5 ✭


    Hi there

    I’m completely new here but was advised to come over from Reddit. I want to get Solar, specifically with ev night charging rates.

    I’ve got various quotes. The ones with brand batteries are expensive. The cheapest one at the moment is 9.7k for dyness 10k battery + 12panel system with a solis inverter.

    I also have a quote for 9.7k but for a 16k battery that’s DIY’d by the installer.

    I’m confused as to what should I go for. Another question I have is what do I need to sell excess solar power back to the grid? If I get the no name battery installed by a random person (non SEAI), can I sell to grid? Is there anything needed specifically to do this!?

    Finally, is this a good price? I saw some mentions of kits for 1800£ in NI but I know nothing of solar though I come from engineering background. Don’t want to mess wIth anything myself.

    Tagged:


Best Answer

  • #1
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,066 ✭✭✭10-10-20


    Hi, the way that the question is put is a little tricky, but let me clarify one part first:

    I’m confused as to what should I go for. Another question I have is what do I need to sell excess solar power back to the grid? If I get the no name battery installed by a random person (non SEAI), can I sell to grid? Is there anything needed specifically to do this!?

    To export onto the grid and receive payment you need to have an NC6 form (or NC7 for larger inverter installs) completed and submitted to ESBn by the installing electrician. That electrician will typically be responsible for the wiring, installation, and configuration of the inverter. The inverter power will be the limiting factor in terms of what is your max export capability will be. Connecting into that inverter are the solar panels and batteries, but these do not strictly need to be installed by the same electrician who submits the NC6, but the NC6 does ask for details on the sizing of the solar and battery, so typically these need to be in place before the form is submitted. You could in theory use a smaller battery and solar install to commission the inverter and then later upgrade or change out elements around that.

    What I'm saying is that the battery could effectively be a DIY job (self-made), commercial high-end job, or a kit from some lad in a barn, but that somebody has to agree to attach said battery and solar to the inverter. So as long as you have an approved inverter installed and the NC6 has been accepted by ESBn, then you're free (within the rules at this point in time) to size your solar and battery according to your wishes.

    Questions in terms of pricing should be popped into the pricing thread - it's pretty active in that respect.

    Hope it helps.



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