FoxESS Community - Owners & Installers Forum

Hi all

I have an H1 invertor, 8x 390W PV and 2 x 2.6kw batteries. I am learning/tweaking the settings as I have inherited this setup and I am seeing which settings work best for me.

At the moment (being on Octopus Flux tariff..) I have setup self-use mode for the majority of the day so that the batteries (which drop to about 70% overnight) get charged to 100% by approx 10am and then power is exported. I do not set the batteries to charge from the grid overnight. Min SOC is 10%.

What I have seen is that my batteries in the evening never seem to produce more than 150W towards the house load, no matter what the load is? I would have thought that with an H1 invertor and 5.2kw batteries that I should be able to discharge at least 3-4kw towards the house load...when PV generation is zero? What should my settings be to get the batteries to cover larger house loads?

Thanks in advance.
Jeff

Hi, your batteries if in self-use and your minsoc and battery reserve settings are both at 10% should be discharging all the way down to 10% soc.

With just the 2 batteries you will likely only get around 3kw max discharge from the batteries but considerably more than the 150watts you are seeing.

Just a couple of quick things to look at -

Your minsoc and battery reserve are both set to 10%

If you are not using charge periods they must not be set at all i.e. 00:00-00:00, anything else with the charge from grid switch disabled results in the batteries not discharging (the time period becomes a don’t discharge period).

That you have no schedules set that force charge/discharge or set Self use with a higher minsoc than 10% as the schedule leaves the minsoc set after ir completes.

Thanks for the reply Dave.

I will change the settings later today and monitor.

Thanks again.