HI, I’m interested in getting the E2 plus charger installed however was told that I need to get the X series instead due to my home being 3 phased. I’ve read what was available here in the forum and it sounds like the E2 plus can be installed on a 3 phase system. I’m seeking clarity on whether this is true or not and if true, how many kwh will I be looking at getting when charging?
Thank you
Jing
Hi Jing,
Thanks for getting in touch.
The E2 Plus can only monitor one phase in the house, if you wanted to have 3 phase monitoring and capability to charge using the three-phases you would need to opt for an X7 (single phase charging with 3-phase monitoring capability) or X22 (3-phase charging and monitoring)
It will depend on your current setup and charging needs.
The charging current will depend on your vehicle’s AC onboard charger and the charger model you go for.
One a single phase charger the max current the charger will offer is 7.4kWh, and on a three-phase charger the max is 22kWh, but it doesn’t mean that all vehicles will be able to charge at the current. Tesla model 3 for example can only charge at max 11kWh AC.
The short answer is, yes you can definitely use an E2 plus single phase charger on a house with 3-phase electricity. However, it would be useful to know if you have solar or not.
Obviously you will only be able to do single phase charging up to 7.4 kW with the E2. If you don’t have solar, and don’t have an EV that accepts 3-phase charging you will be fine.
If you have 3-phase solar, then the E2 will only be able to monitor one phase and it won’t take advantage of using all your solar to charge your EV. If you have 3-phase solar and want to take advantage of it all, you would need the X22 which will monitor all of your solar. It can still do single phase charging up to 7.4 kW as well as 3-phase charging up to 22 kW. The X22 will likely provide some future proofing.