Forum Discussion
Groover
Mar 08, 2021Explorer II
Groover wrote:RoyJ wrote:time2roll wrote:RoyJ wrote:I understand the 600 mile Semi that runs at 80,000 pounds will not have 1000kWh.
In 10/20/30 yrs, when they make duallies with 1000 kWh packs and 10 min charging, we go 100% electric. Simple as that!
They should have 2000 kWh to do it comfortably.
600 miles is 10 hrs straight at AVERAGE of 60 mph. With 1000 kWh that's 100 kW a average, or 134hp. It takes a LOT more than 134 hp to move 80,000 lbs at an average of 60 mph (including hills).
Even with a 2000 kWh battery that's only 270 hp. Barely enough to maintain 60 mph on perfectly flat ground.
My motorhome with a similar frontal area to a semi gets about 11mpg at 70mph. The best that I can figure that is only about 140hp at 70mph or about 110hp at 60mph. The Tesla semi is probably has better aerodynamics than my motorhome. Barely enough power to maintain speed on level ground is more battery power than is needed. Yes, more power will be used to climb hills or accelerate but that energy will be recovered when going back down the hill or slowing down and I have never seen any vehicle run at max speed for 8 hours. This would indicate that a 1000kwh battery is pretty close to the mark.
The Tesla semi will have far more power available for hill climbing and acceleration than diesel power rigs. Tests show that it can go from 0-60mph in 20 seconds with a full load. I have never seen a diesel rig do it that quickly. That should help traffic flow better and make traveling more pleasant for all of us.
About Travel Trailer Group
44,030 PostsLatest Activity: Jan 20, 2025