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Off grid for 20K

Client building a new house quoted 20Kplus vat for DNO supply. Do you reckon you could go off grid for that?
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  • mapj1:

    Not just lead acid.

    There will be more to be learnt about getting the best out of various lithium cells as well - like not charging them to 100% if you do not need to.

    I note that Tesla and others have the depth of cycle and the charge cut-off voltages programmable, and offer an 8 year warranty ( reference) mainly by only filling to ~ 80% and avoiding deep discharge.

    It may be that in a few years time there is a market in 2nd hand vehicle battery packs with life left in them,


    Mike.




    In the longer term I agree, but in the near term I do not trust any type of lithium battery and would be most reluctant to have a large one indoors.

    In the near term, lead acid are IMHO the best choice for off grid homes, and for standby purposes in homes with grid service.


Reply
  • mapj1:

    Not just lead acid.

    There will be more to be learnt about getting the best out of various lithium cells as well - like not charging them to 100% if you do not need to.

    I note that Tesla and others have the depth of cycle and the charge cut-off voltages programmable, and offer an 8 year warranty ( reference) mainly by only filling to ~ 80% and avoiding deep discharge.

    It may be that in a few years time there is a market in 2nd hand vehicle battery packs with life left in them,


    Mike.




    In the longer term I agree, but in the near term I do not trust any type of lithium battery and would be most reluctant to have a large one indoors.

    In the near term, lead acid are IMHO the best choice for off grid homes, and for standby purposes in homes with grid service.


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