Need some installation advice.
Have a 11kWp PV on my roof (in Germany) with a "SMA STP 12000TL-10" PV-Inverter.
Now, that the grid power costs differs that large to my buy-back earnings, I would like to add a battery.
After a lot searching, I recognized the impressive open sources and community of Victron Energy, and I just got a Raspberry Pi 3 B+ running with VenusOS as well as I got my Tasmota connected SmartMeter successfully connected to VenusOS.
Now I think it's time to get the missing parts, and for this I like to get some advise from you:
- Which Inverter/Charger shall I use?
I'm currently undecided between "MultiPlus 48/2000" or "Multiplus-II 48/3000".
From the point of power, the "Multiplus 48/2000" would be sufficient, but I'm unsure if it will play well with the VenusOS and how it will work with the ESS.
Or if there's another argue why to use the Multiplus-II? - BTW: Where does the ESS get handled? On the VenusOS right?
- Anything else I should consider to order beside the MK3-USB, Battery and the AC+DC cabling?
BTW: I plan to start with a 4.8kWh LiFePO4 Battery, but like to be open to add a second battery, or either switch to a 2nd Multiplus+Battery in parallel ... or either up to 3-phase.