Currently have an ESS setup with a Multiplus ii 5kVA, mains connected to AC out 2, an external mains meter connected to Cerbo GX. It works well. I have a switch that can change the connection from AC 2 to AC 1, in the event of a blackout I can isolate the house and connect the inverter output 1 to work off-grid.
I have an EV MG5 with V2L, I believe it has a max output of 2.2kW. Can I connect the car to AC input and run the house off the car? Isolate the house from the grid. Turn on a digital input switch on the inverter or Cerbo. Charging the battery at something like 1kW and when the power drawn from the house exceeds 1kW (total drawn from the car 2kW), the inverter stop charging and even output power to supplement the additional.
Separate question, what program do you use to change the settings of the inverter? I currently use VEConfigure, it looks so old. There must be a newer version?
It isn’t clear from your post, are you off-grid or do you have a grid supply?
If you do, are you saying you have connected the grid to AC out 2?
Perhaps a wiring diagram would help.
I have a grid supply, I am talking about in the event of a blackout it would be very nice to power the house off the car. Especially since my heating is from a heatpump and in the evening the charge might be low so it wouldn’t support the house for long.
If properly wired and configured the AC IN “should” accept the EV as a power source, but you are running as an ESS, which is unsupported in that sort of off-grid setup (even if the off-gridness is caused by a blackout).
ESS will try to push power to the EV and that may have undesired results, in the same way that generators do not like ESS.
If you completely reprogrammed the inverter to drop ESS, limit AC power, and possibly add some of the options that generators like (weak AC, dynamic limiter etc), you might get it working, but the inverter doesn’t officially support V2L.
