FoxESS Community - Owners & Installers Forum

Hi All... newbie here but good to find such a forum, more (way more) active than official forum on fox

couple of months back I got this system installed:

10.5KW panels
10KW FoxESS three phase inverter
42 kw FoxESS battery

The work-mode is set to self-use

Really the battery gets to 100% when sun is up in few hours, my consumption is conservative and hardly (if never) goes over 6KWh (45 amps), so the system is an overkill for my home.

Problem:
Reading from the energy provider <> readings from the FoxCloud2.0 app. Noting that I import at 40cents/KWH while export at 4cents/KWH. So financial loss is considerable when I import anything un-necessarily from the grid, which is happening.

I noticed that I continually import power to the grid even on low loads, but the import is low. Ex. if AC is on along normal appliances like fridge, TV, which consumes a total of 5KWH, I would be unnecessarily importing a fraction of it, maybe 0.2KWH
I also noticed that the system exports power at night where there is no solar production at all .
There is a correlation, usually the export/import at night are almost equal.
Real examples of 30 minutes intervals from the Energy provider reports:
12:00AM : Export : 0.19kwh , Import 0.18kwh
2:00 AM : Export : 0.04kwh , Import 0.04kwh
3:00 AM : Export : 0.03kwh , Import 0.03kwh
3:30 AM : Export : 0.03kwh , Import 0.03kwh
5:00AM : Export : 0.03kwh , Import 0.03kwh

at these times my load consumption as shown on the FoxESS app didn't exceed 0.5KWH. So a fraction is exported/imported at the same time.

My installer is trying to contact FoxESS for help with no success.
Can someone guide me where could the problem be?

Many Thanks

You'll want your installer to update your firmware and then set the grid compensation setting.
I cover it here:

Thanks Will... watched the vid, very informative!
I'm set as "End User" in the fox cloud, seems I can't see or edit these settings. My installer said I can do it myself, probably don't want to be involved as he's busy.

Is there a way I can do it myself?

Thanks

You cannot do it yourself with End User account, so either the installer needs to pull their finger out, or you bypass and ask Fox Support to adjust this for you.

Scroll down to Global Service Contacts and either email or call (have your Inverter Serial Number ready)
https://www.fox-ess.com/contact-us

MaterialBarracuda48 wrote: ↑Wed Feb 25, 2026 9:52 am You cannot do it yourself with End User account, so either the installer needs to pull their finger out, or you bypass and ask Fox Support to adjust this for you.

Scroll down to Global Service Contacts and either email or call (have your Inverter Serial Number ready)
https://www.fox-ess.com/contact-us

Thanks mate... appreciate your response