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PV plus Battery

  • 11-03-2018 10:02pm
    #1
    Griffinx
    Registered Users Posts: 503 ✭✭✭


    These guys http://www.solarpanelteam.ie/ are selling PV panels plus battery storage...on the face of it an excellent system. Has anyone any experience of them or battery storage in general?


Comments

  • #2
    Water John
    Registered Users, Registered Users 2 Posts: 21,808 ✭✭✭✭Water John


    Has come up for mention before in a few Threads. I think, very expensive, was the conclusion.


  • #3
    Gumbo
    Moderators, Society & Culture Moderators Posts: 39,783 Mod ✭✭✭✭Gumbo


    Griffinx wrote: »
    These guys http://www.solarpanelteam.ie/ are selling PV panels plus battery storage...on the face of it an excellent system. Has anyone any experience of them or battery storage in general?

    They done my 3kw panel install.
    I haven’t got the battery yet, but I plan to some day.

    System works perfect, and the generation is fantastic, so much wasted though at present without the battery.

    Is your roof south facing?


  • #4
    Griffinx
    Registered Users Posts: 503 ✭✭✭Griffinx


    kceire wrote: »
    They done my 3kw panel install.
    I haven’t got the battery yet, but I plan to some day.

    System works perfect, and the generation is fantastic, so much wasted though at present without the battery.

    Is your roof south facing?

    No East/West so will put panels on both sides


  • #5
    [Deleted User]
    Posts: 5,238 ✭✭✭ [Deleted User]


    I've yet to see a battery cheaper than giving the power away on a grid-tied installation.


  • #6
    Dudda
    Registered Users, Registered Users 2 Posts: 1,541 ✭✭✭Dudda


    Sir Liamalot wrote: »
    I've yet to see a battery cheaper than giving the power away on a grid-tied installation.

    The only 'battery' I've seen that works financially connected to PV is a SunAmp heat battery. You use if for hot water or heating. Saw it on a Grand Designs house and looked into it for my house. First fix ongoing and plan to get one in the next 2-3 months. Lots in the UK but don't believe anyone in Ireland has installed one yet.


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  • #7
    [Deleted User]
    Posts: 5,238 ✭✭✭ [Deleted User]


    You can get a battery for comparable cost as conventional lecky but you then have to pay extra for installation and supporting hardware. Most people forget to include diminishing efficiency over lifetime, charger and inverter losses in their cost analysis.

    These new fangled grid tied batteries as far as I'm concerned are art. We've had the technology 150 years and all of a sudden everyone seems to think it's new and viable.

    I've 12.5kWh I freecycled from a static inverter emergency lighting system. I have too much respect for it though to be cycling it just to save a few cents on grid lecky.

    I'm running a 2.75kWh in my motor that paid for itself in the first few months because I never have to plug the system in. I use it every day 6 months a year interspersed.

    I've 1.8kWh running my workshop lighting and ELVDC radial. Most of the system is salvage so free lights and "cordless" tool operation.

    Most batteries will be cheaper than running a diesel genset off grid.


  • #8
    unkel
    Registered Users, Registered Users 2 Posts: 65,716 ✭✭✭✭unkel
    Chauffe, Marcel, chauffe!


    Dudda wrote: »
    The only 'battery' I've seen that works financially connected to PV is a SunAmp heat battery. You use if for hot water or heating.

    If you want to heat water, I'd say installing solar tubes is financially better than solar PV as it is more efficient and it attracts a substantial subsidy

    My ads on adverts.ie

    https://www.adverts.ie/member/5856/ads



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