It’s a fair point. As far sitting in your vehicle, the energy to heat or cool it (or play video games or movies on the screen ) is a tiny fraction of what a typical dcfc can provide. The limiting factor is usually what the battery can take so there’s plenty of headroom for the creature comforts. Ie, imagine what a 1500W space heater feels like; that’s 1% of what a 150kw charger provides, even less for a faster charger, so the effect on charge time from power usage is nil. A bigger consideration is if the heating/cooling system is also used to condition the battery, ie it can’t keep the battery as cool if it’s also trying to cool the cabin so it can’t charge as fast as it might. I don’t know how big an effect that might be, but I expect not huge. As far as money, we’re talking max around 50 cents a kWh, so if you’re sitting there for an hour with the ac on playing video games on the screen, it’ll add less than a dollar to the bill.The fact that you never know what condition the chargers will be in when you get there, is a contributing factor of "range anxiety". With the billions that have been dumped into the charging system, you would think that things would be a little bit better. I'm interested in actual work being done to reduce the breakdown and reduce the charging time to something realistic.
Also not mentioned here is, what do people do while they wait at a charger? I'm not one to walk away from my vehicle while out. It seems if you sit in the vehicle, your using energy to heat or cool it. Is everyone just comfortable walking away? As @J Alynn said, are you spending more money while you wait?
As far as walking away from vehicle, I expect most folks are fine with that if there’s something worth walking to, eg buc ee’s, restaurant, circle k, nice lounge, etc.
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