Some households run the risk of overloading their main electricity supply and tripping the main circuit breaker.
Charge HQ could be enhanced to provide a load management feature which limited the EV charging power when required to avoid tripping the main breaker.
This feature would operate any time the EV is charging, in any mode, and would reduce the EV charging power in response to other household loads to keep the total grid import below the rating of the main supply breaker.