The Sunsynk App has this error. 7944W coming in from the grid only but showing the house is drawing 11744W “according to the App”I have spoken to Sunsynk customer service who advise my installer must contact Sunsynk to fix it.The inverter display is very close +-100W as I would expect. Has anyone else had this problem and how did it get resolved 🙏

@Markpower ,

Don't have your problem, 'cause I don't use either old or new Sunsynk apps any more. Too little info, data updates too slow, and not enough granularity/stats to make good decisions.

Depending on your needs, these are some of your options:

1) Stay with Sunsynk Connect (or even the old one - even worse) - and live with what they give you (bear in mind this is a cloud service, so your data no longer belongs to you)

2) Use Solar Assistant - if you have mild OCD about what is going on in your system. Use this if you are not interested in Home Automation. It can interact with HA, but then you need another computer, hence option 3) that only needs 1 computer. A good solid option. I also like to support "Made in South Africa"

3) Use Home Assistant + smarthomeintegrations.co.za dongle - if you have acute OCD (like me!)😁. All the installation instructions/videos are available for the average person to install. The customization is endless. Also a proud South African product!.

With options 2 & 3 you can still keep your dongle connected, and the cloud app will still function, but I would just remove it altogether, and only re-insert it to the inverter, in case you ever need to upgrade the software on the unit. (if it ain't broke, don't fix it).

Option 2 & 3 ensures that your data never reaches the cloud, it's private and can't be sold.

There are other options for 3) detailed here on PF, just search, but I found it the easiest to implement.

I have used all 3 options.

Option 1 for about a month after my installation, and it just frustrated me, like you.

I used Option 2 for about 2 year, but also ran out of info, as SA, even though it gives you your Battery packs detail, it still lacks crucial info, like graphing of Battery Cell Voltages, and tracking Cell Delta Voltages, which is what you need to monitor in a battery pack.

Now I'm on Option 3 for the last year, and loving it.

If Option 2 is your poison, just a word of caution. The Raspberry Pi / etc. uses a SD card, which will wear out after about 3 years, rather replace the SD card with a SSD drive. Either way, just do regular backups.

Edited June 13, 20251 yr by Sidewinder

18 minutes ago, Sidewinder said:

cause I don't use either old or new Sunsynk apps any more. Too little info, data updates too slow, and not enough granularity/stats to make good decisions.

Agreed :)
Their apps are sucky.
HA works great for me :) almost realtime data and gazillions of options to choose from.

On 2025/06/13 at 10:11 AM, Sidewinder said:

@Markpower ,

Don't have your problem, 'cause I don't use either old or new Sunsynk apps any more. Too little info, data updates too slow, and not enough granularity/stats to make good decisions.

Depending on your needs, these are some of your options:

1) Stay with Sunsynk Connect (or even the old one - even worse) - and live with what they give you (bear in mind this is a cloud service, so your data no longer belongs to you)

2) Use Solar Assistant - if you have mild OCD about what is going on in your system. Use this if you are not interested in Home Automation. It can interact with HA, but then you need another computer, hence option 3) that only needs 1 computer. A good solid option. I also like to support "Made in South Africa"

3) Use Home Assistant + smarthomeintegrations.co.za dongle - if you have acute OCD (like me!)😁. All the installation instructions/videos are available for the average person to install. The customization is endless. Also a proud South African product!.

With options 2 & 3 you can still keep your dongle connected, and the cloud app will still function, but I would just remove it altogether, and only re-insert it to the inverter, in case you ever need to upgrade the software on the unit. (if it ain't broke, don't fix it).

Option 2 & 3 ensures that your data never reaches the cloud, it's private and can't be sold.

There are other options for 3) detailed here on PF, just search, but I found it the easiest to implement.

I have used all 3 options.

Option 1 for about a month after my installation, and it just frustrated me, like you.

I used Option 2 for about 2 year, but also ran out of info, as SA, even though it gives you your Battery packs detail, it still lacks crucial info, like graphing of Battery Cell Voltages, and tracking Cell Delta Voltages, which is what you need to monitor in a battery pack.

Now I'm on Option 3 for the last year, and loving it.

If Option 2 is your poison, just a word of caution. The Raspberry Pi / etc. uses a SD card, which will wear out after about 3 years, rather replace the SD card with a SSD drive. Either way, just do regular backups.

Thanks guys for your support and advice I’m going to give those options a look at and decide.

👍👍👍

Hi everyone more questions

1) Does anyone know if Solar Assistant /Raspberry Pi can connect to Pylontech LV hub to extract data from a mixed setup of US2000 and 3000 batteries.

2) Do you require to connect both Sunsynk inverters or just the master to the PI to collect the data.