Re:The Tesla Semi Is an Engineering Failure
by fallingknife on Sunday August 22, 2021 @11:28AM
(#28266238)
This video is bullshit. The 1:20 ratio for battery weight is nonsense. A Model 3 long range has a 1060 lb battery vs 20 gallons of gas which weighs 126 lbs. So it's more like 8.5x. Also he doesn't take into account the simplicity of an electric motor vs a ICE engine. e.g. an electric truck doesn't need a transmission, so there will be a lot of weight savings there.
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Re:The Tesla Semi Is an Engineering Failure
by nehalem on Sunday August 22, 2021 @11:38AM
(#28266327)
It is also noteworthy that the video assumes that the truck would carry a battery equivalent of 1135 litres of diesel. But driving about 600 km a day at 30l/100km the truck only needs about 180 litres (140 kg) of diesel a day. Even with the 1:20 ratio, that would result in a 2.8 tonnes battery. Still punishing in terms of load capacity but much more realistic to offset through weight savings along the drive train.