Looking for community advice or recommendations in an advanced application.

[northjerseymike]

Hey All,

I'm trying to put together components for a specific use case, and was hoping that some of you might have come across devices that might fit the bill for me.

To begin, I am replacing a Sigineer 24v AIO (Growatt clone/similar) that had some issues with. On the Sigineer, I used the USB RS485 interface to collect data with it's self-branded version of PVKeeper. I then used the data collected by 'PVKeeper' to chart and plot my energy production/consumption along with some other environmental data. Below is a screenshot of an interface I was working on.



I'd like to replace the Sigineer, and rebuild to continue working on this project. These are the existing components I have to work with:

4 12v 300Ah LifePo4 Batteries that can be wired up in parallel or series.
A solar array that typically delivers 2Kw of PV, and does so beetween 70-100v at 20-40 Amps.

Here is what I need:

An all in one unit, or a charge controller + inverter combo that:
* can function with the given input voltage. (A lot of 48v charge controllers, and some 24v seem to requre a minimum pv input of 100v).
* has the ability to output data in a way that can be obtained from a PC (USB / RS232 / LAN )
* Can output at least 3kw 120v

Additionally, I've been looking for a shunt that can export data via usb, RS232, or LAN. If I can use shunts to monitor the Pv/Bat/Inverter data, I wont need the functionality built into the actual components.

Also,

I would prefer to keep my battery bank at 24v.
I would prefer to access data locally, and not from cloud connected devices.

If anybody has any suggestions or recommendations regarding any of this, it would be appreciated.

Thanks!

 

[northjerseymike]

Hey All,

I'm trying to put together components for a specific use case, and was hoping that some of you might have come across devices that might fit the bill for me.

To begin, I am replacing a Sigineer 24v AIO (Growatt clone/similar) that had some issues with. On the Sigineer, I used the USB RS485 interface to collect data with it's self-branded version of PVKeeper. I then used the data collected by 'PVKeeper' to chart and plot my energy production/consumption along with some other environmental data. Below is a screenshot of an interface I was working on.

View attachment 231743

I'd like to replace the Sigineer, and rebuild to continue working on this project. These are the existing components I have to work with:

4 12v 300Ah LifePo4 Batteries that can be wired up in parallel or series.
A solar array that typically delivers 2Kw of PV, and does so beetween 70-100v at 20-40 Amps.

Here is what I need:

An all in one unit, or a charge controller + inverter combo that:
* can function with the given input voltage. (A lot of 48v charge controllers, and some 24v seem to requre a minimum pv input of 100v).
* has the ability to output data in a way that can be obtained from a PC (USB / RS232 / LAN )
* Can output at least 3kw 120v

Additionally, I've been looking for a shunt that can export data via usb, RS232, or LAN. If I can use shunts to monitor the Pv/Bat/Inverter data, I wont need the functionality built into the actual components.

Also,

I would prefer to keep my battery bank at 24v.
I would prefer to access data locally, and not from cloud connected devices.

If anybody has any suggestions or recommendations regarding any of this, it would be appreciated.

Thanks!

Update: I had to pull the trigger on something quick, so I snagged one of the Growatt 3000TL LVM-24P refurbs for $500.

I'm still looking for a solution that will allow me to get data from a shunt into a pc without having to build a Pi/Arduino device to do it. Not sure if such a thing even exists, but if somebody has seen one, please let me know.

Thanks!