John Cadogan is an entertaining automotive engineer but if you go to minute 13 of the YouTube video referenced by meloccom 'Geriatric Trucks' you will witness some unfortunate untruths. He makes his living by acting as an intermediary between potential new vehicle buyers and car dealers (so no money to be made out of Tesla buyers then). In the past he has referred to Tesla vehicles as '*sugar* boxes'. I did leave a comment pointing out a couple of the more outrageous claims i.e. 50% transformer loss (presumably he is talking about the step down transformer in a local substation providing 240V phase to neutral) and 20% loss in low voltage distribution and by a series of exaggeration concludes that an EV is 14% efficient. I left a link to a document that covers these i.e. EVALUATION OF DISTRIBUTION LOSS FACTORS 2015-2016. See section two for an overview.
https://www.endeavourenergy.com.au/...port+2015-2016+-+Final+PUBLIC.pdf?MOD=AJPERES
Just a word of caution, he has a Friday show where he spends his time humiliating those with the timidity to question his wisdom via a YouTube comment.
Edit: I see an auto edit has changed a word from Mr Cadogan's original choice to sugar, it had four letters, started with an s and ended with a t.