Electricity is an allowable item to package in your novated lease budgets. If charging at home you will need to have installed a separate smart meter so the costs can be captured for charging your EV / PHEV. The report from the smart meter can be used to claim back the electricity cost against you novated lease budgets.
When you charge your EV on a Tesla or other third party charging station they will provide a receipt which can be used to claim back the cost via the driver portal.