The system is 4.5 years old. I don’t expect free support from the installer. Given that they don’t sell Goodwe anymore and their “Goodwe guy” has gone. I wasn’t expecting much. That’s not to be rude: I can’t expect free support forever.
But I mailed them and asked if they could suggest a way forward. They called me back, asked for the serial number of the inverter, and said that Goodwe would be logging in.
Since then, two firmware upgrades. The first was looking promising, now I have to verify (or not) the second.
I’m guessing the installer has an open ticket.
I checked all the settings I have access to using SolarGo. There seems to be some extra battery profiles, also DRED shutdown (I have no idea), clear overload history (seems to be for resetting something to the factory setting), and “cold start”. None of these have helpful (to me) descriptions. No setting for automatic firmware upgrade.
DRED stands for Demand Response Enabling Device. It’s an Australian thing AFAIK, for inverters it was primarily used before frequency shifting was mandatory (I think). You also get them on things like aircons, which limits their power to 75%/50%/25% IIRC.
@tinuva So what I did very early on in the life of this system is set the inverter into eco mode with just one “rule” or “slot” set up: Charging from 15:00 to 16:00. If I have a full battery at 16:00 then I am chillaxed for the night and well into the next morning. So this rule would top up the battery on days with poor PV.
This was when I was working at the office, and I had no ability to change anything on the inverter remotely. This became my default mode. The only time I had to worry is if we had load shedding from 14:00 to 16:00, but that wasn’t very often.
Anyway, these days I mostly work at home, and I run it more in general mode, but on the weekend I’d set it into eco with the above settings and left it so that when we got a load shed again, I could repeat the test that I’d done under 2121E. So that all happened today.
So it does seem that the original problem is fixed and that it’s a firmware version issue.
OK… my last word on this. For about 25 minutes today I had a situation where there was load shedding, not a lot of PV, battery not completely charged, and (because of the shedding) light loads. For that time span the Goodwe drew about 1.2kW from the panels whilst the load was about 450 - 520 W. So, again, the battery charged and the draw from PV only dropped off when SOC hit 100%.
I’m still on 2525J.
So now I’m as sure as I can be that this problem can be addressed by firmware.
Hi! Our equipment : solar cells, pylontech batteries and a goodwe inverter. We use to select mode in the menu “remote control” in sems portal app. We uses Eco or general mode. Suddenly has this menu got blank. Nothing listed. We have stopped and started our equipment. We have uninstalled and reinsstalled the mobile app but it is still an empty menu. No error messages. How can we solve this?
First thing I would try is installing the SolarGo app on your phone. This only works locally IE you must be connected to the same WiFi router as the Goodwe, but it means you are interacting with the inverter, rather than an online portal which is remote from your inverter.
I just checked SEMS on my phone. I don’t get the blank page you describe.
Hello Tinuva
I have the same problem with my Goodwe. Doesn’t use full solar to charge batteries when connected to grid. I have a 3kw string and a 2kw string and inverter limits the 3kw while connected to grid to charge batteries. But will ramp up if there are other loads on in the house. If I disconnect from mains full power goes to the batteries. I have spoken to Goodwe a few times but couldn’t help. Any idea how to fix it. Losing a lot of production as the 10kwh of pylontec don’t charge up every day.
The only way I could fix that, was to change the setting, which set how much power the goodwe will push into the grid. Mine was on 0w when I had the issues. 50w didnt fix it, but with 100w push back to the grid, my solar production has been fixed 99% of the time. It ramps up slowly, but once the batteries allow full rate charging, solar production is good.
Just checked the name now “GoodWe Grid export limit” is what you want to set to 100w. There is another setting, that then disable or enable this. So ensure it is enabled.
Most of the time in general mode, it will not even do this, only when the batteries are at 100% and there no other loads.
So the downside is, some prepaid meters will record this as usage. For the amount of time the inverter is actually doing this with 100w export vs my batteries not charging full speed when they should, I decided I’d rather live with this downside than struggleing to fill batteries.
I have gotten myself into corners, part of the ongoing “Degree” I’m working on see.
Many a time I came to accept (read, was forced to accept) that the “school fees” loss does indeed eliminate the ongoing frustrations I painted myself into.
Trick is … no rush.
Buy wisely shopping the replacement part/s over time.
Try and sell the part that is causing the frustration to further mitigate costs.
I also remind myself
Hardware ages, breaks even, so that is coming one day too.
So I pre-empt that by selling the part/s before that happens - obviously in good faith.
