FoxESS Community - Owners & Installers Forum

Hi all,

My set up at the moment is: FoxESS EP11, H1-3.7-E-G2, 7 x 440 PV panels, Octopus heat pump.
Next step for this household is an EV charger. Apparently there is a Fox ESS ev charger out there, but it doesn't appear to be mainstream in the UK. Two electricians have visited the house and both recommend Zappi.

I want to power the ev charger from the grid during the e.on nextdrive overnight rate and obviously not use the EP11.

My understanding is that I set up a 'use the grid' period on the Fox app by:- quick settings>grid charge setting>set charging time start and finish>don't toggle the charge from grid>submit. Then all loads on the house will be met from the grid during that set time.

Have I got that right?

TIA

I can thoroughly recommend the Zappi as well.

If when the EV charger is installed you make sure that the electrician installs a Henley block just after the smart meter which splits the feed between the house/inverter and the EV chargers you will never have a problem with the battery discharging into the EV. But if the EV charger is capable of using solar (such as the Zappi) it will still work perfectly.

If they do share a common power connection the only way to avoid battery discharge is to always set a charge period when the EV is charging (and have grid charge enabled if you want to charge the home battery, or leave it disabled and it will not discharge). Another alternative is to set the battery reserve (min soc on grid) to 100% when the EV is charging and the battery will simply charge slowly whilst it is set.

Hi Dave,
It seems there's limited space for the Henley block route, according to the electricians.
Your advice on setting charge periods or using min soc of 100% is noted, thanks.
I'm grateful for your swift reply.
SS