Thingol
New Member
- Joined
- Dec 8, 2020
- Messages
- 49
Hello folks,
I am working on the design of my off-grid system in SMA Web Design tool. One thing I find confusing is why I need both a PV inverter (Sunny boy 6 for example) as well as a storage inverter (Sunny Island). I thought that modern inverters integrate DC-AC. My System would be similar to what is shown here in this SMA guide under 2.3.1 Single System. But if you look at that system, there is a PV inverter as well as a battery inverter. Why do you need both? My expectation was that modern inverters are able to integrate DC input from PV panels + batteries and its conversion to AC, SOC monitoring and battery charging all in one unit. Is that not what Growatt off-grid inverters do?
I am working on the design of my off-grid system in SMA Web Design tool. One thing I find confusing is why I need both a PV inverter (Sunny boy 6 for example) as well as a storage inverter (Sunny Island). I thought that modern inverters integrate DC-AC. My System would be similar to what is shown here in this SMA guide under 2.3.1 Single System. But if you look at that system, there is a PV inverter as well as a battery inverter. Why do you need both? My expectation was that modern inverters are able to integrate DC input from PV panels + batteries and its conversion to AC, SOC monitoring and battery charging all in one unit. Is that not what Growatt off-grid inverters do?