Powering your house is an advertised feature (with additional equipment) of a few electric cars. e.g. https://electrek.co/2025/09/28/yes-an-ev-really-can-power

Powering your house is an advertised feature (with additional equipment) of a few electric cars. e.g. https://electrek.co/2025/09/28/yes-an-ev-really-can-power-your-home-if-its-one-of-these/ https://electrek.co/2025/09/28/yes-an-ev-really-can-power-yo... To go off grid, you'd need a source of power to the car that wasn't your house.