He then goes on to ask the question of what it would take to travel at a more realistic 70 MPH. This leaves plenty of room to only use 93% of an 850 kWh pack. He recalculates this for 55 MPH, showing that you’d come in at only needing 740 kWh to pull off this run. He takes the drag coefficient of the vehicle, its weight, and every other factor he could get good numbers for, and comes up with a need for 800 kWh in a previous video. They wouldn’t need the whole pack to travel 500 miles at 55 MPH. This is important, because it further backs his estimate of 850 kWh. A closer look shows that the speeds were closer to a 55 MPH average. Tesla’s estimated range of 500 miles is based on a 60 MPH speed, which is important because the vehicle didn’t use its whole battery on the drive. One thing many viewers didn’t notice was that you could look at the drive and see the speedometer. He also took a good look at Tesla’s 500-mile drive. The efficiency is actually good enough that they could get away with only 850 kWh of battery cells, which saves Tesla a bunch of money, preserves the battery supply for other vehicles, and is generally better for the environment. ![]() The good news? It’s likely that the Tesla Semi didn’t need a megawatt-hour pack. He doesn’t have the exact official figure (because nobody outside of Tesla does), but some information that Tesla and Elon Musk gave out during the delivery event and on Twitter was enough for Jason to give us a very good estimate. He starts by covering the likely battery capacity of the Tesla Semi. The results are often good for Tesla, but there are a couple of bad news items. And, now that more numbers are out, he gave them an even deeper look. Instead of wildly speculating, Jason decided to put claims against the Tesla Semi to the test. This is where Jason’s skillset (an actual engineering degree) comes into play in great ways. So, whenever Tesla or SpaceX announces something new, there are always a few people trying to tell us that it’s impossible, and thus probably a scam. Some of them short the stock, some of them just don’t like the guy, and others have made an actual case. There are a lot of people who think that Elon Musk is a bit of a con artist. But I do know who to go to when I need those numbers, and one of those people is Jason at “Engineering Explained.” So, I’m probably not the person to go to if you want a deep look at the numbers behind a clean technology. I did okay in high school and college in math classes, but I didn’t pursue a science, engineering, or other technical degree. I’m not going to lie, I’m not big on math. ![]() Sign up for daily news updates from CleanTechnica on email.
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