whitex
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- Jul 30, 2021
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- 2023 Taycan TCT, 2024 Q8 eTron P+
The figure I mentioned above (and confirmed by other folks), ~2KW, makes total sense. My rough calculation was the car losing ~6 miles per hour, which at low average speeds can easily reduce your range by 30%. If your average speed is 20mph, for each 14 miles you drive you actually use 20 miles of range. 6 is 30% of 20As I wrote US cars USED to consume about 25kW.
I learned this around 50 years ago when looking into why most European cars at the time didn’t have A/C at all and found the Mopar A/C pump peak power requirement was more than the total power of a then current Mini , ie, if you revved a Mini up to peak power then engaged a Mopar A/C unit the engine would stall.
I also wrote they will be more efficient now, which they will, and makers are less extravagant now too. In any case I am sure the average power of any A/C unit doesn’t need to be anything like the maximum, obviously.
The range calculator shows approximately a 30% reduction in city range between A/C off and on at 30C ambient fwiw.
A decade of driving EV's here, every car has an approximate miles per hour of range lost due to HVAC (different for heating vs. cooling, and somewhat dependent on set vs. ambient temps).
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