A few Issues with new GE system. Is it just me?

New customer with a few issues / queries: Is it just me or?

Had a new system installed in first week of Oct 22 by an excellent Platinum installer. I have two 9.5 kWh batteries, each with an AC inverter.
1) After the first few days, the SOC of each of the batteries no longer is 'symmetrical' several hours after using them to power the house. After the nightly Octopus Go charge, this evening I have one at 73% SOC, the other at 43%. Is this usual? I don't really want one battery to be cycled more heavily than the other. And if my wife decides to put the oven on at 10pm, this means there's a good chance that I'll only be able to pull the 3kW from one battery/inverter combo, as the other pair will be almost discharged. It rather defeats my 'raison d'etre' of having two inverters to cope with a _6kW power draw.

2) The stats on the mobile app (Android) don't make sense. At one point today, I had 800W PV feeding a domestic usage total of 300W. But the animated battery current flow shoed that it was discharging! What's going on here?

3) On the Givenergy Cloud desktop, it claims that I have 78.6 kWh generation TODAY. I wish! How exactly is this figure calculated? It makes no sense, when it is October and we have an 8 year-old 3.8 kW PV system that at best is chucking out a daily total of 3kWh in October. The other stats on the Cloud desktop are equally puzzling: 'Consumption Today' is claimed to be 267 kWh. Thankfully this is also an error, but how so and why?

4) The mobile (Android) App no longer updates its desktop every 12 s or so. It seems to have defaulted over the last few days to using only a less frequently updated 'Away' setting, as opposed to 'Home'.

I'd like to think these are simple things but would welcome comments from others who may be able to help me understand what is going on. Is it just me?

Thanks
Bob

1) Yes this is normal for a pair of AC inverters. GE does not yet have a solution to enable them to charge and discharge evenly. It is very annoying, and I often end up limiting the charge or discharge rates, to try and keep them roughly balanced. Having two AC inverters also messes up many of the reported values in the web portal and the App. Apparently a hardware solution 'box' is on its way, but they have yet to tell us if we will need to pay for the box or for its installation.....

With two AC inverters you may also see one battery discharging into the battery (the web portal graph is good for spotting this - it is when you see the dark blue areas both above and below the line at the same time) - this is not an attempt to balance the batteries, as it usually goes the wrong way - and you loose energy because of the losses. If this happens simply restart both inverters.

2) The mobile App got an update in the middle of last week. It has caused many many issues for quite a few people.

Even when GE get the App sorted out, you will soon learn to understand reported values are genuine and which are pure junk. It's not a great advert for GE, but their kit is quite nice, and could be excellent once they get their sh*t together - but the reporting is currently very poor.

ToothyChris
Thanks ToothyChris!

I'm pleased and relieved (in equal measure) that it is not just me. As you stated, it is pretty annoying when you fork out for a second inverter to gain the extra discharge (and charging) rate, only to later discover that the hardware is not working as it should do. In fact, your solution of manually limiting the discharge of one of the system pairs is what I did earlier this evening in an effort to try to equalise the two systems. It'll be interesting to see for how long this effectively addresses the problem...

I really appreciate your candid reply - it's very helpful. I will keep an eye out for that nasty issue where one battery discharges into the other: How on Earth do they allow something like that to happen without advising customers/installers in advance?

I agree with you that the hardware is great. It looks sleek and modern. But clearly the software aspects of system control and information display need attention.

Thanks again for your reassurance that the issue(s) I have noticed are not user-generated.

Cheers,
Bob

It's not just you. I'm even worse off. Second inverter failure in a few months of use. 🙁
Wrote a post here and asked other uses about their experience.

Vitali
Oh crikey! That's not good news, but hopefully it was a one-off and not a generic problem...

I have exactly same issues with my 2xAC's. I wasnt warned before purchase this.

I also have a twin AC/8.2 battery system. I did plenty of research before I decided to do this. Almost went back to a single inverter several times. For the most part it acts fairly well, although there have been a few incidents as outlined above, normally solved by inverter restarts.

I know there is this EmS hardware “on the way” which should solve this, so I decided to put up with a few months issue(which have been minimal thus far(although not perfect, I still have to watch the system more than I would prefer) before it’s here and can be installed.