A setup that will be of interest to those with an EV with V2L capability, that are looking to be able to use their EV as a backup power source.
Some photos of an off-grid house system, 3-phase 30kVA, with AC-In wired for a backup Genset (future if needed), AC-Out 1 for general loads and AC-Out 2 configured as a smart Aux Dump load for water heating using Assistants.
Solar PV installed via Multi RS 200A MPPT Controller.
Pylontech battery bank.
Now the interesting bit. As a backup source a separate MPII GX 5kva installed primarily as a charger enabling V2X.
Power can be downloaded from the EVs onboard 230Vac 3.6kW V2L. Installed and tested at 2.2kw, but now tuned up and works well at 3kw continuous (about 60A charging power) from EVs onboard Aux socket.
The question is will a backup Genset (Petrol, Diesel or Gas) be needed in the winter months!
The AC Charger icon on the new UI is power via the EVs V2L.
Note. Essential to install a 230Vac/230Vac isolation transformer between EVs V2L and system to keep earthing arrangements segregated. EVs V2L supply not designed to have a N-E bond applied.
Most EVs V2L outputs whilst 230Vac are protected floating supplies and centre tapped 115-0-115
Works perfectly.
On a practicality front, time will tell if this capability negates the need for a backup Generator in off-grid applications.