Can use EV V2L feature to light up the house and cook some rice 

v2h you'll need special car charger outlet that support v2h or generator outlet and
switch over circuit with specific load calculated according to car specified max output

v2l is just a single device, all you need is the v2l adaptor cable and plug in your device,
you can use power extension rated to match the car specified max output and
plug in to power multiple devices as long as it does not exceed the car specified max output

example from byd seal from facebook max output is 2.4kW,
so you can plug in max one device load that doesn't exceed 2.4kW or total devices cannot exceed 2.4kW
but 2hp aircon might be risky, if it's non inverter old 2hp aircon it can easily exceed 2.4kW
your car does have safety net built in will stop providing electricity, but it's better not overly rely on it