Thanks. Is that energy and delivery-of-energy combined for 7.5p/kWh? (Here we are charged separately for each of those tasks and, for me, the delivery of energy is over 59% of the total bill. Any alternate supplier is competing only for the supply of energy.)
When you're computing your total cost per mile to compare against petrol or against a commercial fast-charging alternative, it does come into the analysis (assuming it's a per-kWh cost rather than a per-month fee).