Why Tesla's are bad at towing!
Two words......energy density. Video - Why Teslas Are Bad At Towing (Today) Maybe someday, but not today. Now let the excuses commence......
Forum Discussion
Just some general observations from his excellent mathematical presentation, not necessarily EV related.
1. Rolling resistance is a higher factor than most of us acknowledge. In his example of the Model X towing at 70, the required energy is 100.4 kWh and 84 kWh at 60. Since speed only effects the aerodynamic portion of his example, subtracting the difference of 16.4 kWh from the Aero column leaves 29.4 vs 32.8 for rolling resistance.
2. It would have been nice if he had included a column depicting the effect of inertial changes such as accelerating from 0 - 60. In real life one would have accelerated and slowed down many times in that 100 miles especially in the mountains. However that would have made his example more complicated.
3. Real life, most people towing get about 10 MPG whether towing with small TV and small trailer or larger truck with a large trailer (assuming gas). Since gasoline has about 33 kWh per gallon, the trip would really take about 330 kWh.
1. Rolling resistance is a higher factor than most of us acknowledge. In his example of the Model X towing at 70, the required energy is 100.4 kWh and 84 kWh at 60. Since speed only effects the aerodynamic portion of his example, subtracting the difference of 16.4 kWh from the Aero column leaves 29.4 vs 32.8 for rolling resistance.
2. It would have been nice if he had included a column depicting the effect of inertial changes such as accelerating from 0 - 60. In real life one would have accelerated and slowed down many times in that 100 miles especially in the mountains. However that would have made his example more complicated.
3. Real life, most people towing get about 10 MPG whether towing with small TV and small trailer or larger truck with a large trailer (assuming gas). Since gasoline has about 33 kWh per gallon, the trip would really take about 330 kWh.
