Allsorts

@francoisI thought it would be the case, but doesn't seem to be.. I have a total of 5.2kW solar panels installed.

Thanks everyone. The answer is then to move plugs to ensure these loads are not on the back-up circuit. Bloody mission sorting out wiring, plugs, lights etc to get them on the right circuits in a 50-year old house that has been changed and renovated over time! Next time I install solar I would rather build a new house and start the installation from scratch..

I can't tell you the amps or kW, but if a hair dryer and the microwave is on at the same time it trips the batteries, which restarts after a couple of seconds once one of the items are switched off. This is even when there is grid supply...

Good day, I am hoping that the smart people on the Forum can assist me with a (most probably) simple question. System: Goodwe 5kW EM inverter (with 2.3kW back-up) together with 2x Pylontech US3000 batteries. My question - the battery trips when the load on the back-up side of the circuit is too high, is this trip-limit a function of the inverter or the batteries? I would like to understand if it would make a difference to add additional batteries or not. Thanks

Ok, let me re-phrase, I should have said: I used to run on Self-use mode (use batteries up to say 60% DOD, and keep 40% for Backup), but also did not get the correct SOC. The reason I state that I did not get the correct SOC is: 1. The value on the PV Master (or SEMS portal) compared to the lights on the batteries did not quite match 2. The system would sometimes run in Self-use mode after I restarted everything, but after one cycle the SOC stayed at its backup cut-off value (40% in my case) and wouldn't charge the batteries (or so it says - but if I restart everything then suddenly the SOC is 100% - go figure) After the FW upgrade it seemed to work, but then not anymore... On the economic mode at least I can see that the batteries are cycling according to the settings, but how efficient this is I am not sure - unless I can actually monitor the batteries separately and compare it to Goodwe's SEMS portal data. That is also why I state that it behaves as expected - this is not 100% measured behaviour.. In saying that, it still bugs the living daylights out of me why the system doesn't behave as expected based on the set operation modes... my installer says I am simply using too much power and that the PV doesn't get time to charge the batteries based on the SEMS data. Also, according to the Segen Solar, my selection for the US3000's are correct - US2000+ (there isn't a US3000 selection). I am considering getting a new EZ Meter and CT to check if their replacement doesn't make a difference (based on a separate topic on this forum). Isn't there somewhere and independent Goodwe know-it-all that can help us!?

I have a Goodwe GW5048-EM inverter talking with Pylontech US300s, but am still frustrated with some settings, or I am just slow.. I recently upgraded my Firmware which seemed to help (and no, I am not using an EZconverter). Currently I am running on Economic mode where the battery charge and discharge times are set for specific periods and it seems to behave as I expect it - whereas if I use the Backup mode it doesn't seem to behave as I expect it to. Not sure if any of this helps, good luck though.

The app says there is communication between the Inverter and batteries (and SOH = 100), but the SOC doesn't make sense if I look at the status on the batteries. And they don't charge regularly... but that could be another problem that I am busy investigating...

Hi Niel, Do you have an Goodwe ES or EM inverter? I have a GW5048-EM and it also doesn't have the option to select US3000 batteries. Trying to find out what the latest firmware version is (currently have 04046) and if that will fix it..