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      08-03-2022, 07:15 PM   #10
Txgringo
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Drives: bmw x3
Join Date: Jun 2022
Location: Texas

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Quote:
Originally Posted by Paladin1 View Post
Quote:
Originally Posted by Txgringo View Post
What happens in stop and go as far as the range?
EVs use very little energy when stopped (A/C, heat, lights). Constantly on at 2kW (unlikely due to car insulation - and assuming you kept all systems on), even half full the battery would last longer than a day. A gasoline engine idling uses approximately 1/2 gal/h, and must be on to run A/C and heat. One analysis:

A British consumer watchdog group tested an electric vehicle’s battery performance during a simulated traffic jam. Using a Volkswagen ID.4 sport utility vehicle, the testers streamed music, turned on the car’s heated seats to maximum settings, turned on the air conditioner, turned on the headlights and used the car’s USB socket to charge a tablet that was playing a movie.

After 75 minutes of using all of those functions while the car was stationary, the car’s main 77 kWh battery lost 2% of its power, equal to 8 miles of driving range.


Which would likely be regained with regen once you started driving again. You're more likely to be waiting for a tow truck after running out of fuel in your gasoline-powered SUV than in your EV.
So what turns the A/C compressor while stopped?
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