Is a Tesla Model S Heavier When Fully Charged?
It is a really odd question. Does driving an electric vehicle and using its power supply make the car any lighter? You plug a car into a charging station and electricity is transferred into the car from the grid. But how much does electricity weigh? This is a pretty heady concept, and luckily, someone else did the math. In conventional cars, as you drive, you burn off the fuel. That spent fuel is now in the atmosphere as carbon emissions and no longer in your tank. Such weight loss in conventionally powered vehicles plays into refueling strategies in auto racing, but in an EV? PHOTOS: See more images of the Tesla Model S P85D YouTube star and apparent math whiz Tom Scott wanted to find the answer. He asked a half dozen professors, and even got in a Tesla Model S to try and get to the bottom of it. Here is what they came up with. Get out your slide rules:
Okay, you may have been distracted by Scott’s reaction to the “insane” braking and acceleration of the Model S (the P85 and P85 D have an “Insane” mode that makes sport mode look weak), but they were using some real math to figure it out. They started with the famous E=mc2, and knowing that E in this situation was 85 kWh (hence the name P85) they broke it out further.
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And even further
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I don’t know what any of this means. I just write about cats playing pianos in cars. But I think what he was trying to say was that the expenditure of energy from driving the Tesla is equal to the weight of a grain of sand.
Maybe this is a conversation best had with your friends in a dorm room, next to a My Morning Jacket blacklight poster.
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