@paul99 thanks for your explanation. I'm just trying to keep it simple. My main objective is to buy as little electricity as possible. So I'm just using Eco mode in the late afternoon/early evening to charge my batteries up to capacity, similar to @Bobster. I had it set for a shorter period at 80% power rating, but then experienced an instance when the inverter tripped because someone turned on a microwave (my charging period overlaps with a potential busy kitchen period).  So I made the charging period slightly longer at a lower power rating.  Outside that short charging period, I am just letting the system run in default general mode. My batteries discharge to between 30 and 45% and the cycle repeats.

hi Miko

Just to clarify your statement about setting remotely

In SEMS portal app you can set the inverter remotely

Scroll down to bottom

Where it says inverter click the GW5048D-ES

Next to monitoring click  configure  click the box i agree and press next

Click the arrow next to working mode and you can set your different modes remotely

Hope this helps

Hi @paul99

I checked my app (using the iPhone version) and could not see a configure option next to monitoring (see screen shot).

Are you using a different version of SEMS portal?  Mine is Version 3.3.16.

Regards, Michael

I have opened up a ticket with Goodwe to see if they can enable that option for me.

I use the same ver 3.3.16 on samsung

In the beginning i also did'nt see it but if you open it up and as fast as possible you keep tapping the screen on the very right hand side next to Monitoring while the monitoring  data is loading and you do this several times it eventually shows up

I just saw it there by accident one day and it would dissapear after a miilisecond

So i just kept opening that screen and tapped on the right continuously till it opened up and now it shows up all the time

it shows up in a different language some times

Hope this helps and works for you

Also

here are screenshots of the other screens

remember to click save after changing something otherwise nothing will happen

Thanks @paul99. I tried your trick on my iPhone SEMS Portal app and could not get the configure button to appear.  I raised a support ticket with Goodwe and they sent me a link to register as an installer. Once that registration is approved, I will be able to log-in as an installer and have access to the configure option.  This is what they said:

 

Good Day Michael

The remote settings are available in the installer account. Your Account is a end user account. 

 

You will have to register with a different email address or we can request our team to delete your existing sems portal account. 

 

Kindly note a different department is deleting the sems portal accounts. This may take 3 working days or more. 

 

You can use the link below to register the installer account if you will use a different email address.

 

https://www.semsportal.com/Home/InstallerRegistration/f3626c16-a97f-4a61-aaa8-870703c13e65

 

ok guys here are my settings for loadshedding small or large 

My aim is to deplete my batteries down to 40- 50% at night

You will notice i start and end on uneven hours as loadshedding is always on even hours so i will always overlap by 1 hour either side of loadshedding if loadshedding is below stage 5 (stage 5 and higher is 4 hours after each other at certain times)

ECO MODE    if you dont put any settings in at night (ie when there is no pv)  it will run those hours as if it is in "General Mode" only drawing what it needs from battery to satisfy the load

i set no1  01:00-05:00 charge at 5%  (this forces the inverter to load say 600 watts in my case from grid for those hours Your load will get added onto this 5%) This 5% is about what my house draws at night when everyone is asleep so when its loadshedding it goes into "general mode" mode and only draws from battery what it needs to satisfy the load and when loadshedding is over it keeps the batteries at whatever % the battery has dropped to because the 5% will satisfy the load without drawing any more power from the batteries

I have now switched this off so it runs as if in general mode from midnight to 05:00 as my batteries can carry me from 00:00 till 07:00 but if yours cant here is an option to top up the batteries or keep then from discharging further before sunup

i set no 2  06:00-10:00  discharge at 1%  This is not for those that can't discharge to grid ,but i can. This forces discharging the batteries at a couple of watts and stops the pv from charging the batteries because i have found that if i charge my batteries at near noon when pv is high i can draw up to 7kw from my pv (load+charging batteries+export to grid, i must also add that the inverter is set to 50hz not south africa, see attached pdf for proof thanks to the software from CEF)

If batteries are near full at 11am then i can only draw 5.2kw from pv when sun is at max  (load+export to grid)

Now for the last couple of days it has been raining and cloudy mostly every day so the batteries dont get charged enough for the evening

i set no 3  13:00-1600 charging 6%  (In my case this is about 1 kw drawn from the grid for the battery + the load gets added to this if no sun.) The sun will always give more than this on a sunny day then this setting does nothing,but at least when its cloudy my batteries will get charged for the eveningfrom 13:00

if PV is exporting more than the load it will add the left over pv to 6% and charge with that up to max that the battery can handle and export the rest

If PV is less than the load it will draw the extra load from grid and charge at 6%

So from 16:00 till 21:00 all the cooking etc gets done and then it all quietens down and i dont set these hours so it acts as if in general mode drawing from battery once the sun sets (hopefully the batteries will be 80-100% depending on loadshedding)

i set no4   21:00-23:56 charge 10%  This will top up the batteries to about 80% after the evening usage and loadshedding

Remember loadshedding usually kicks in during these hours  then the charging stops and discharging happens

If your batteries can carry you thru the night then you will only set the daytime in case it is cloudy

The times that you set nothing the inverter will act as if it is in general mode

Hope this helps someone out there

Regard

Paul

 

screen.pdf

Edited February 3, 20233 yr by paul99

Hi Does any one know how to get access to the rest of the options after "Configure"  I tick" I agree to the above conditions" and then click next, however I seem to always get the message  Tips Operation failed. Please try again.  I must have tried 40+ times this morning, with 2 different phones, turning my phone on and off. Closing the SEMS app reopening it.

I did get access once or twice, so it does work but I cant spend 30 min at a time to get to chnaging the modes, this is very frustrating.

Does anyone have a solution?

Saw this when I logged in SEMS on my PC

 

 

 

Edited February 4, 20233 yr by BGb

On 2023/01/30 at 6:00 PM, paul99 said:

here are screenshots of the other screens

remember to click save after changing something otherwise nothing will happen

Hi @paul99 Thanks for providing this information. I've now applied it to my Inverter, but with difficulty as I find it dificult to connect after configure (but then I had the same issues with PV master).

I noticed you production figures of 31623 kWh and calculated that this equates to 1395 day and 22.66 kWh per day very impressive (hope I got it right)

The figure for my system = 22663 kWh for 1121 days giving 20.22 kWh per day (i'm also able to feed back into grid)

By changing to Economic mode I hope to catch up😉  My Settings 05h00 to 10h00 Discharge to 12% main objective is to not charge battery until 10h00 when the sun is doing well. Also did not want to discharge the battery further. My on grid DOD = 30%

It would be nice if other Goodwe users could share their long term production here Or maybe another thread?

Added 13h20

Already produced 0.5kWh extra  Added 13h20 (PV produced differ between that shown in main SEMS screen and when you click on the inverter image on mobile, the latter lower in my case).  Load 2927 w charge to battery 2606 w

 

Edited February 4, 20233 yr by BGb
Added data

Hi guys, thanks for the thread thus far, it already helped a lot for what I am trying to achieve on my system.

I have a GW5048D-ES inverter, one Pylontech US3000 battery and 16 x 400W Canadian Solar panels (one string of 8 facing North and one string of 8 facing West).

With a DOD On-Grid setting of only 9% and a DOD Off-Grid setting of 79%, my essential load set-up is enough to get me through one late afternoon / evening 2,5 hour loadshedding session and 75% through a subsequent early morning 2,5 hour loadshedding session.

However, if the early morning session is the 04:00 to 06:30 session, I find that my system is switching on and off repeatedly when it starts getting some PV generation (I think), but then the PV generation is not necessarily enough and the system switches off again. Some mornings this can happen in excess of 5 times before the Eskom grid is restored. This can’t be good for anything.

The first preference would have been if there was a setting where you can tell the system to only switch back on again once the battery is charged to, argument’s sake, 50% (or when Eskom is back up) but I can’t seem to find a setting like this, so if anyone know of such a setting please let me know?

The second option is to use the Eco Mode to have Eskom charge the battery between the two loadshedding sessions. This is where this thread was very helpful thus far. However, I don’t want the grid to charge the battery 100% full, using expensive Eskom power. I want to ideally limit it to 50% SOC. I thought that is what the “Charge cut-off SOC” setting in the Eco Mode charging time periods would do, but even if I set that to 50% the grid still charges the battery to about 88% SOC before it stops charging the battery. Not sure where it gets the 88% stop point from. Any suggestions on whether it is possible to limit to what level the battery should be charged using Eskom power?

Obviously, the last option would be to play around with the rated power %, but currently, depending on the stage of loadshedding, the timing between my evening session and my morning session can be as little as 1,5 hours or as much as 3,5 hours so without tampering with the rated power % every now and again,  catering for the 1,5 hour timing will result in a significantly “over charge” during the 3,5 hour timing and vice versa.

Any suggestions and comments would be highly appreciated.

On 2023/02/13 at 10:53 AM, Skubbe said:

Hi guys, thanks for the thread thus far, it already helped a lot for what I am trying to achieve on my system.

I have a GW5048D-ES inverter, one Pylontech US3000 battery and 16 x 400W Canadian Solar panels (one string of 8 facing North and one string of 8 facing West).

With a DOD On-Grid setting of only 9% and a DOD Off-Grid setting of 79%, my essential load set-up is enough to get me through one late afternoon / evening 2,5 hour loadshedding session and 75% through a subsequent early morning 2,5 hour loadshedding session.

However, if the early morning session is the 04:00 to 06:30 session, I find that my system is switching on and off repeatedly when it starts getting some PV generation (I think), but then the PV generation is not necessarily enough and the system switches off again. Some mornings this can happen in excess of 5 times before the Eskom grid is restored. This can’t be good for anything.

The first preference would have been if there was a setting where you can tell the system to only switch back on again once the battery is charged to, argument’s sake, 50% (or when Eskom is back up) but I can’t seem to find a setting like this, so if anyone know of such a setting please let me know?

The second option is to use the Eco Mode to have Eskom charge the battery between the two loadshedding sessions. This is where this thread was very helpful thus far. However, I don’t want the grid to charge the battery 100% full, using expensive Eskom power. I want to ideally limit it to 50% SOC. I thought that is what the “Charge cut-off SOC” setting in the Eco Mode charging time periods would do, but even if I set that to 50% the grid still charges the battery to about 88% SOC before it stops charging the battery. Not sure where it gets the 88% stop point from. Any suggestions on whether it is possible to limit to what level the battery should be charged using Eskom power?

Obviously, the last option would be to play around with the rated power %, but currently, depending on the stage of loadshedding, the timing between my evening session and my morning session can be as little as 1,5 hours or as much as 3,5 hours so without tampering with the rated power % every now and again,  catering for the 1,5 hour timing will result in a significantly “over charge” during the 3,5 hour timing and vice versa.

Any suggestions and comments would be highly appreciated.

I've also started using eco-mode and it looks like the off and on grid DOD plays a role on how the inverter reacts.  Still trying to figure it out.

My proposal would be when on grid without enough PV to charge the battery to create a "charge event" but limit it to only a short time say 30 min depending on charge rate (that you will have to pick up from monitoring the system or data in SEMS)

On 2023/02/13 at 10:53 AM, Skubbe said:

Hi guys, thanks for the thread thus far, it already helped a lot for what I am trying to achieve on my system.

I have a GW5048D-ES inverter, one Pylontech US3000 battery and 16 x 400W Canadian Solar panels (one string of 8 facing North and one string of 8 facing West).

With a DOD On-Grid setting of only 9% and a DOD Off-Grid setting of 79%, my essential load set-up is enough to get me through one late afternoon / evening 2,5 hour loadshedding session and 75% through a subsequent early morning 2,5 hour loadshedding session.

However, if the early morning session is the 04:00 to 06:30 session, I find that my system is switching on and off repeatedly when it starts getting some PV generation (I think), but then the PV generation is not necessarily enough and the system switches off again. Some mornings this can happen in excess of 5 times before the Eskom grid is restored. This can’t be good for anything.

The first preference would have been if there was a setting where you can tell the system to only switch back on again once the battery is charged to, argument’s sake, 50% (or when Eskom is back up) but I can’t seem to find a setting like this, so if anyone know of such a setting please let me know?

The second option is to use the Eco Mode to have Eskom charge the battery between the two loadshedding sessions. This is where this thread was very helpful thus far. However, I don’t want the grid to charge the battery 100% full, using expensive Eskom power. I want to ideally limit it to 50% SOC. I thought that is what the “Charge cut-off SOC” setting in the Eco Mode charging time periods would do, but even if I set that to 50% the grid still charges the battery to about 88% SOC before it stops charging the battery. Not sure where it gets the 88% stop point from. Any suggestions on whether it is possible to limit to what level the battery should be charged using Eskom power?

Obviously, the last option would be to play around with the rated power %, but currently, depending on the stage of loadshedding, the timing between my evening session and my morning session can be as little as 1,5 hours or as much as 3,5 hours so without tampering with the rated power % every now and again,  catering for the 1,5 hour timing will result in a significantly “over charge” during the 3,5 hour timing and vice versa.

Any suggestions and comments would be highly appreciated.

I'm assuming you're running in general mode (this is the default), and that your battery is getting low in the early morning. 

Remember that in general mode, the battery is not charged from grid, only from PV. And there was probably another load shedding slot between the sun going down and 6am. So I think your battery is hitting that 79% DOD limit. This is just 2.4 kWh to expend over these two load shed slots. 

It would help us understand what is happening if you post a graph from SEMS. Something like this

That shows the behaviour of the system over a day.

Also check what mode you're running in.

We can then test my hypothesis that your battery is running down. If it is so, then we can discuss your options.

NB! I am not an installer nor any sort of engineer. But I have owned one of these inverters for a bit more than 3.5 years. You should feel free to double check anything I recommend.

On 2023/02/13 at 10:53 AM, Skubbe said:

Hi guys, thanks for the thread thus far, it already helped a lot for what I am trying to achieve on my system.

I have a GW5048D-ES inverter, one Pylontech US3000 battery and 16 x 400W Canadian Solar panels (one string of 8 facing North and one string of 8 facing West).

With a DOD On-Grid setting of only 9% and a DOD Off-Grid setting of 79%, my essential load set-up is enough to get me through one late afternoon / evening 2,5 hour loadshedding session and 75% through a subsequent early morning 2,5 hour loadshedding session.

However, if the early morning session is the 04:00 to 06:30 session, I find that my system is switching on and off repeatedly when it starts getting some PV generation (I think), but then the PV generation is not necessarily enough and the system switches off again. Some mornings this can happen in excess of 5 times before the Eskom grid is restored. This can’t be good for anything.

The first preference would have been if there was a setting where you can tell the system to only switch back on again once the battery is charged to, argument’s sake, 50% (or when Eskom is back up) but I can’t seem to find a setting like this, so if anyone know of such a setting please let me know?

The second option is to use the Eco Mode to have Eskom charge the battery between the two loadshedding sessions. This is where this thread was very helpful thus far. However, I don’t want the grid to charge the battery 100% full, using expensive Eskom power. I want to ideally limit it to 50% SOC. I thought that is what the “Charge cut-off SOC” setting in the Eco Mode charging time periods would do, but even if I set that to 50% the grid still charges the battery to about 88% SOC before it stops charging the battery. Not sure where it gets the 88% stop point from. Any suggestions on whether it is possible to limit to what level the battery should be charged using Eskom power?

Obviously, the last option would be to play around with the rated power %, but currently, depending on the stage of loadshedding, the timing between my evening session and my morning session can be as little as 1,5 hours or as much as 3,5 hours so without tampering with the rated power % every now and again,  catering for the 1,5 hour timing will result in a significantly “over charge” during the 3,5 hour timing and vice versa.

Any suggestions and comments would be highly appreciated.

PS: You have a lot of PV and not very much battery. You could easily double or treble your battery capacity. I run a 10kWh battery with the same inverter and less PV, and I get through from 16:00 to at least 7:00 without any problems, and on a sunny day I use very little grid power.

Hi Guys, just reading your comments and wondered if you may be able to advise on this inverter with regard to using in total off grid (genset backup only), is it suitable or does the program require a constant grid identification to function off grid.

I'm checking out- this is about the Goodwe 5048D - ES MODEL of course

cheers for any advice

Glenn Harvey

Hi Guys, just reading your comments and wondered if you may be able to advise on this inverter with regard to using in total off grid (genset backup only), is it suitable or does the program require a constant grid identification to function off grid.

I'm checking out- this is about the Goodwe 5048D - ES MODEL of course

cheers for any advice

Glenn Harvey