When there ain't enough energy ...

When there ain't enough energy to go around, we have to layer up, both ourselves and our homes, eat porridge, keep the oven door open after cooking and hug a pet.  As Ovo Energy suggested this week but were quickly slapped down. 

When there ain't enough energy to go around, we have to limit our travelling by finite fossil fuels or be a fossil fool.

When there ain't enough energy to go around, your EV had better be powered purely from home-generated elecy from solar panels and not from other charging stations on your travels that might well give you fossil fuel-generated elecy from high greenhouse gas emitting sources.  If that is the case, it is pretty pointless, you might just as well use the oil directly in an ICE car rather than using it for it to be turned inefficiently into elecy.  And that makes the shortages worse.  If you ain't generated enough elecy for your trip, you can't go.  It's as simple as that.

Does turning the oil into fuel for a car mean more oil-burning than using it to generate elecy?  What kind of oil do oil-powered power stations use?