Settings reqd on H1 invertor for my battery to discharge more than 150W

[jconabere]

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

[Dave Foster]

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.

[jconabere]

Thanks for the reply Dave.

I will change the settings later today and monitor.

Thanks again.