I’m an EV driver ( and total convert) and I was interested in your post @batfastard ( great name). I suppose for us EV users plugging in on longer journeys reminds us of the blimmin’ hassle of petrol station visits that we’ve all but forgotten about with 99% home charging.
I get 7p per kWh overnight rate by the way on octopus and a recent trip to Glastonbury involving a hotel stay I charged overnight on a 20 kw charger for £15 ( main car park behind the George and Pilgrims)