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battery for Pv system

  • 10-04-2021 10:03am
    #1
    Registered Users Posts: 45 Liaison


    Just browsing car parts and came across a 28kwh battery for 6k. Would it be a good price / worthwhile for a pv system?


Comments

  • Registered Users Posts: 2,752 ✭✭✭ graememk


    Liaison wrote: »
    Just browsing car parts and came across a 28kwh battery for 6k. Would it be a good price / worthwhile for a pv system?

    Depends on what you compare it to.

    Ali Express batteries are around 120-130€ /kwh
    But that's bare cells. Build everything yourself

    Plyontech etc are around 300-350€/kwh but they are plug and play.

    That is about middle of the road, are they bare cells or are they packaged up with a bms?


  • Registered Users Posts: 45 Liaison


    graememk wrote: »
    Depends on what you compare it to.

    Ali Express batteries are around 120-130€ /kwh
    But that's bare cells. Build everything yourself

    Plyontech etc are around 300-350€/kwh but they are plug and play.

    That is about middle of the road, are they bare cells or are they packaged up with a bms?

    Packed up with a bms


  • Moderators, Category Moderators, Motoring & Transport Moderators, Regional East Moderators Posts: 58,915 CMod ✭✭✭✭ unkel


    Liaison wrote: »
    Just browsing car parts and came across a 28kwh battery for 6k. Would it be a good price / worthwhile for a pv system?

    Bad price. Sure you can buy a complete Nissan Leaf (including its 24kWh battery pack) with tax and test for €3.5k :D

    28kWh brand new from AliExpress with a BMS and all other parts you need costs a bit over €3k landed as graememk said

    "Wind is Ireland's oil" - An Taoiseach, 25/05/2022



  • Registered Users Posts: 849 ✭✭✭ tails_naf


    graememk wrote: »
    Depends on what you compare it to.

    Ali Express batteries are around 120-130€ /kwh
    But that's bare cells. Build everything yourself

    Plyontech etc are around 300-350€/kwh but they are plug and play.

    That is about middle of the road, are they bare cells or are they packaged up with a bms?

    Any links to these cells/BMS? Looking to upgrade my battery - though I guess its probably not possible to mix and match DIY with commerical - as I assume the BMS must be cooridinated?


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