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BaleGeod
Rank 2
Oct 29, 2026 12:32 PM UTC
Question

Replacing Fox ev charger with Hypervolt

A question if could answer or advise me on replacing current FoxESS EV charger with charge anytime compatible Hypervolt home 3 pro EV charger.

I currently have OVO installed (via OVO partner)
22 465w panels
FoxESS kh8 inverter
3 off ep12 batteries
L series EV charger
Grant 290 ASHP
I am on the OVO 2 year fixed tariff and the OVO 20p Seg export tariff

As the FoxESS charger is not supported/compatible for charge anytime monthly basic scheme I will be replacing my current charger with the Hypervolt.

As I will not be using/depending on solar or battery to charge my EV can the Hypervolt be operated independently from my FoxESSsolar PV system without impacting my Seg export. Can it be installed and work independently from solar and batteries? What I’m hoping for is not to have to run any additional cables? Also will I need an additional ct clamp for this.
 

    2 replies

    Blastoise186
    Super User
    Blastoise186Super User
    Super User
    Oct 29, 2026 1:24 PM UTC

    Howdy ​@BaleGeod !

    By design, a Hypervolt will work fine with this setup - any additional CT Clamps should be provided by the installer if required. As long as the panels/batteries are still in play, you get to keep SEG and swapping the EV Charger won’t impact that as it’s a separate thing and SEG doesn’t care about that. Neither side will interact with each other directly so you can operate the charger independently from the solar. If you DON’T EVER want it pulling from the battery, use Battery Safe mode, otherwise you can use any of the other modes to suit your desire.

    IIRC no extra cables are needed - but an installer can confirm. The main thing to know is that the charger may choose to use solar and/or battery power like anything else so please check that first.

    However, you would need to use the appropriate solar mode - the installer can help with that and the OVO Charge app will ensure the OVO side is configured right based on the answers you give.

    Hope that helps!

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    Rank 2
    BaleGeodAuthor
    Rank 2
    Oct 29, 2026 2:18 PM UTC

    Confirmation greatly appreciated!

    Terms & ConditionsAccessibility statement

    OVO Energy Ltd, Floor 5, Crescent, Temple Back, Redcliffe, BS1 6EZ, (Company no. 06890795) registered in England and Wales.

    OVO (S) Gas Limited is registered in England and Wales (Company No. 02716495) at Floor 5, Crescent, Temple Back, Redcliffe, BS1 6EZ.

    OVO (S) Gas Limited is part of OVO Group Ltd