Hi all!
I've been looking at some grid-tied home storage system for some time to maximize self-consumption. I would love a Tesla Powerwall, but they are not available in Europe yet and they do not have 3-phase inverters. For Europe they seem to rely on a SolarEdge inverter. Anyway, not available. There is SolarEdge's StorEdge, but that also only works with single phase inverters. I also have 2 separate PV arrays from 2 brands (Growatt and SolarEdge), which adds to the complexity.
To clarify: I'm from Europe and I have 240V 3-phase at home (50 Hz).
I would like to build a stand-alone system (not connected to my PV arrays) that:
- Has some kind of input on which i can tell the device how much to charge or discharge (eg. TCP, HTTP, rs232, RS485, does not really matter). So I would like to be able to send:
'charge at 500W', 'charge at 2000W' or 'Discharge at 750W'. In this way I can charge when I have excess solar and discharge for example at night.
I already have all the equipment running to determine how much excess power I have or how much power I draw from the grid.
- Can charge my battery bank from AC
- Can feed AC power from the battery, grid-tied.
- Ideally 3-phase inverter, but 1-phase will also do (i can use 3 inverter/chargers if I wanted, 1 per phase)
- AC input and output should be around 3 to 5 kW (my PV generates about 5 kW during peak hours, but 3 kW is also good so I can use common 16A breaker)
- I do not need any type of backup power. I want everything grid-tied.
I have been Googleing extensively but cannot find anything that comes close.
I have looked at both SMA Sunny Island and Outback Power FXR, but both seem to work on the principle that all loads are connected to the inverter, and that the inverter is the only device connected to the grid. This will not work for me. Besides both devices cannot supply enough current to charge my EV. Outback is limited to 10 amps for example.
Does such a device exists?
I've been looking at some grid-tied home storage system for some time to maximize self-consumption. I would love a Tesla Powerwall, but they are not available in Europe yet and they do not have 3-phase inverters. For Europe they seem to rely on a SolarEdge inverter. Anyway, not available. There is SolarEdge's StorEdge, but that also only works with single phase inverters. I also have 2 separate PV arrays from 2 brands (Growatt and SolarEdge), which adds to the complexity.
To clarify: I'm from Europe and I have 240V 3-phase at home (50 Hz).
I would like to build a stand-alone system (not connected to my PV arrays) that:
- Has some kind of input on which i can tell the device how much to charge or discharge (eg. TCP, HTTP, rs232, RS485, does not really matter). So I would like to be able to send:
'charge at 500W', 'charge at 2000W' or 'Discharge at 750W'. In this way I can charge when I have excess solar and discharge for example at night.
I already have all the equipment running to determine how much excess power I have or how much power I draw from the grid.
- Can charge my battery bank from AC
- Can feed AC power from the battery, grid-tied.
- Ideally 3-phase inverter, but 1-phase will also do (i can use 3 inverter/chargers if I wanted, 1 per phase)
- AC input and output should be around 3 to 5 kW (my PV generates about 5 kW during peak hours, but 3 kW is also good so I can use common 16A breaker)
- I do not need any type of backup power. I want everything grid-tied.
I have been Googleing extensively but cannot find anything that comes close.
I have looked at both SMA Sunny Island and Outback Power FXR, but both seem to work on the principle that all loads are connected to the inverter, and that the inverter is the only device connected to the grid. This will not work for me. Besides both devices cannot supply enough current to charge my EV. Outback is limited to 10 amps for example.
Does such a device exists?