PaBz0r

This is now if they haven't forced you to install a 15A breaker.. as per some diagrams we have seen.

This is exactly what the problem is, if you limit it to 15A then you can only supplement the 7kw with 3.5kw from the Grid, in the case where you don't have enough PV or Battery to cover, or in the case where you have hit the inverter limit and it needs to pass the rest through. *EDIT* Ok based on Plonkster's reply below, this is only an issue untill passthru is triggered, then normal operation can continue, depending if you have installed a smaller breaker or not

So like the shore power settings and not actually setting the inverter output to 3.5kw? So for instance in my case, this won't be problem:

I was also checking it out the other day, would not mind one.

Yes I did not dispute the fact that your inverter is capable of running the load, all that I alluded to was the fact that you are under powered on the battery side for the size of your inverter. It was also mentioned on the forum that warranty claims they tend to check if you have sized the backup correctly. The SLA batteries have a higher discharge rating most likely compared to the pylontechs that you have, perhaps why it was running fine previously. If you are convinced that it is not due to your load being out of spec for the batteries, then yes you could have some other issue. I am not familiar with the setup of the Goodwe and Pylontechs, all that I know from a Victron perspective is that you can see the charge and discharge limits communicated from the batteries and the Inverter stays within those parameters. You have to also input the total AH for the bank. Are you able to see this on the Goodwe side and after adding the 3rd battery did it increase the charge/discharge limits? Any warnings on batteries or on the Inverter?

I remember Goodwe had something about certain loads is not recommend..

I see.. the Smart RS 6000, looks compact

This webinar mentioned that a bigger inverter will be ok, but it seems they also have a view on the PV size for the particular system, which could end up being another story: https://arepenergy.co.za/city-of-cape-town-webinar-nov-2019/ https://arepenergy.co.za/city-of-cape-town-webinar-nov-2019/

I read this part: It made me wonder..

So I have been wondering about what it means using a non NRS approved inverter vs an approved NRS inverter for Backup/UPS. Do you have to have a manual change over to be able to power the loads or can it still be "connected" to the grid and do pass through? For example using an Axpert only for UPS not an embedded SSEG. What does this mean for charging from the Grid if the case is you can't use it as pass through?

Add take-aways, homework by candlelight, a new baby in 9 months etc into the calc

Put a value on convenience... If you just want to look at numbers it won't add up.

Would also like to know what you are looking at price wise?

Midstream?

Well you are running a 5kVA inverter with batteries only capable of delivering 2400W continuously , you will run into some issues.

I am wondering how the temperature is influencing the available capacity, see yours is running at 36°C

Add another pylon and it should be better each US2000 can only deliver 25A continuously, washing machine likely pushing more than 2400W for longer periods of time.

It can't handle 74A for a long time, it can handle 100A for maybe a second according to the manual. Running it for a minute on 74A will probably give you a lot of problems. From looking at Inverter and Battery recommendations, they normally double up the Pylons to avoid situations like this. Victron recommends a minimum amount of batteries to avoid situations like this: I would think you need to get another battery..

I would be very careful. These fly by nights are all over and we have seen some dodgy installs.

My geyser is running at PV idle times, two slots a day and normally only comes on for the first slot. On Tuesdays this slot is also used for ironing/vacuuming etc. and in the beginning I had a 3kW element, which pushed it to importing some grid. Luckily my geyser burst and got a replacement with a 2kW element. This gave me enough room to handle most loads during a geyser slot, unless the wife really wants to also use the microwave and dishwasher at the same time

I paid for the equipment upfront and was delivered a day or two after. The rest of the installation was only paid after the job was complete and COC was issued. If you do make payment, insist on receiving the equipment, while planning is done for the installation.

From the webinar on Nov 29 2019 it was stated that hardware/software limiting can be used to throttle it within spec: https://arepenergy.co.za/city-of-cape-town-webinar-nov-2019/

From the webinar on Nov 29 2019 it was stated that hardware/software limiting can be used to throttle it within spec: https://arepenergy.co.za/city-of-cape-town-webinar-nov-2019/

Thanks for the information, I do have those two already. The others I have seen only drafts of, so thanks for this. Wonder how far we are out before they start giving deadlines for registration...

Would you mind sharing? No luck in sending emails to them and getting a reply.