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Tesla Semi, all-electric trucks get scathing criticism from auto tech expert

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6 years ago

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The Tesla Semi might be receiving a lot of interest from companies and the electric vehicle community as a whole, but an automotive technology expert from Germany is not that impressed. In a statement, Chair of Automotive Engineering at the Technical University of Munich Markus Lienkamp criticized all-electric trucks like the Tesla Semi, stating that such vehicles are pretty much pointless in the economic and ecological sense.

“The battery for a Tesla Semi must have a capacity of about 1000 kWh, per 100 kilometers about 130 kilowatt-hours. This is technically not easily feasible and it’s also pointless both economically and ecologically,” he said.

Lienkamp’s scathing criticism comes on the heels of a study from Transport and Environment, a consortium of European environmental organizations that conducted a study comparing the energy consumption and environmental costs of conventional diesel trucks and their all-electric counterparts. Two diesel trucks were used for the study: one with an average consumption of 33 liters per 100 kilometers (around 7 mpg) and a more aerodynamic truck with a consumption of 22 liters per 100 km (10.69 mpg).

The results of Transport and Environment’s study found that diesel trucks consume between 2.2-3.3 kilowatt-hours per kilometer, far above the consumption of an average electric truck, which requires 1.44 kWh per km. Electric vehicles that are designed from the ground up for maximum efficiency such as the Tesla Semi require just 1.15 kWh per km. The study’s authors concluded that overall, using all-electric trucks reduces energy consumption by a factor of 1.5-2.9.

All-electric trucks surpass diesel trucks in terms of efficiency as well. The study revealed that a diesel truck engine has an efficiency of 20-45% on long-haul routes and a measly 10% in city traffic. In comparison, electric trucks have a 90% efficiency for long routes and 75% in urban traffic. Lienkamp is not convinced, arguing that the source of the electricity used by vehicles like the Tesla Semi affects efficiency.

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“The efficiency of the electricity mix used for the truck battery is important. If the energy comes from a gas-fired power plant, for example, the overall efficiency quickly drops back to 40%. If, on the other hand, 80% to 90% of the electricity comes from renewable sources, as planned in the EU for 2040, long-distance trucks would be attractive from an ecological point of view,” he said.

Tesla Semi hauling Tesla Model 3 and X. | Credit: Tesla

The authors of the study maintained that electric trucks are cheaper to repair and maintain simply because they have fewer moving parts. Even brakes will rarely need replacing, thanks to systems like regenerative braking. While these are compelling advantages, Lienkamp stated that “for distances of 500 kilometers and beyond, battery-powered trucks simply won’t make any economic sense until 2030,” adding “with electric vehicles, the cost of trying to reduce CO2 levels is simply too high.”

It should be noted that the Tesla Semi, at least in its upcoming iteration, is not designed to enter the long-haul market that is dominated by trucks that can go over 1,000 miles in one full tank. Rather, the Tesla Semi is designed to compete in short-range routes that range from 300-500 miles. From this perspective, it becomes difficult to argue against the Tesla Semi.

The Tesla Semi is a Class 8 truck, and with its four Model 3-derived electric motors, the all-electric long-hauler is capable of sprinting from 0-60 mph in just 5 seconds without a trailer. With a full load, the Semi can reach highway speeds in 20 seconds, far quicker than conventional diesel trucks. The Tesla Semi is currently undergoing real-world tests, in preparation for its production, which is expected to start either this year or sometime in 2020.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Cybertruck

Tesla clears the air on Cybertruck ‘deactivation’ video that is obviously fake

Tesla has cleared the air on the viral video, stating it is fake.

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2 hours ago

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August 11, 2025

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Credit: Cybertruck | X

Tesla has cleared the air regarding a video that has been circulating, where the owner claims his Cybertruck was “deactivated” by the company while he was driving.

The video was shared on X and showed a driver pulled over on the side of the road, claiming his Cybertruck had been deactivated by Tesla in the middle of traffic. It is very obviously fake to those who know the company, but these kinds of things have a tendency to pick up steam.

The video shows a screen that says:

“Tesla Cybertruck De-Activated. Critical Issue Detected | Contact Customer Service, Comply with Cease & Desist to Re-Activate. Update Failed, Return to Dealer.”

The same person who posted the video also shared an image of what appears to be a Cease and Desist letter from Tesla, but it is also likely fake:

The company finally responded to the video on Monday afternoon, stating that the video is, in fact, fake, reiterating that it will not disable vehicles remotely for any reason.

It is a shame that these types of things happen, especially as people are prone to believe anything they see on the internet. As there is so much misinformation circulating surrounding Tesla and its CEO Elon Musk, it is no surprise that someone would leverage the situation for their own benefit.

If that Cease and Desist letter is not real, perhaps the next one might be. These types of things can truly cause damage to a company’s reputation, and someone getting an idea that Tesla would remotely deactivate a car could prevent them from buying one.

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Elon Musk

Elon Musk is stepping up for Tesla Service in a big way

Elon Musk has stepped up to resolve a handful of customer issues regarding vehicle service.

Published

4 hours ago

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August 11, 2025

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tesla service
Credit: Tesla

Elon Musk is stepping up to help customers in a big way, especially when they are having issues with Tesla’s Service.

Perhaps one of the biggest advantages Tesla owners have is access to Musk through X, his social media platform. Over the years, we’ve seen Tesla add features, refine its cars’ performance, and more, all through asking Musk directly through a post.

Now, Musk is stepping up in another way by resolving a few Service complaints that customers had.

The first occurred last week when a recall on a Tesla battery was not honored by Service. The company sought $30,000 for a replacement and labor, which was not right. Musk responded that he would personally investigate the matter. The vehicle was fixed at no cost as it was a recall, and was ready for pickup the next day.

It also revealed a new strategy Tesla is using to combat service communication issues:

Tesla creates clever solution to simplify and improve its Service

The next occurred with a Cybertruck owner who was in Japan. Their car was parked at an airport in the U.S. and had lost a vast majority of its state of charge, leaving them just fifty miles of range at the time.

Musk reached out to the owner and said Service will take care of the car and will investigate the cause of the battery drain:

There are not too many companies out there where the CEO will get involved with individual issues like these. It’s pretty exclusive to Tesla, as Musk has commonly stepped up to resolve complaints with vehicles or to confront features that some owners might find useful.

Service has been a weak point of the company for some time, but it has worked to refine and resolve customer complaints by building more Service Centers across the world that can handle these issues.

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Elon Musk

Tesla CEO Elon Musk confirms Robotaxi is opening to the public: here’s when

Anyone will be able to request a Tesla Robotaxi in September, Elon Musk said this morning.

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6 hours ago

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August 11, 2025

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Credit: Joe Tegtmeyer | X

Tesla CEO Elon Musk has confirmed that the company’s Robotaxi platform is opening to the public, and he even gave a timeline for when anyone will be able to access one for a ride.

Tesla’s Robotaxi platform launched to a small group on June 22 in Austin, Texas. The company has continued to expand the number of riders and its geofence over the past month and a half.

Tesla officially launches Robotaxi service with no driver

Additionally, it launched rides in the Bay Area of California, but it differs slightly, as the Texas Robotaxi platform does not utilize a Safety Monitor in the driver’s seat. In California, the monitor sits in the driver’s seat.

As the geofence, service areas, and testing populations expand, Tesla fans are awaiting their elusive emails that enable their ability to use the Robotaxi platform. It now seems that the email will come soon, as Musk said Tesla will open up public access to Robotaxi next month:

Tesla has been prioritizing safety over anything else with the launch of the Robotaxi platform, which is why it has been slow to push invitations to new riders. It is confident in the abilities of the platform and its Full Self-Driving suite, which has been proven with data.

However, even a single accident could set Tesla back years in terms of its development of self-driving cars. It is not a risk it is willing to take.

Musk said during the recent Q2 Earnings Call:

“We need to make sure it works when the vehicles are fully under our control. It’s kind of one step at a time here. We don’t want to jump the gun. As I said, we’re being paranoid about safety. But I guess next year is I’d say confidently next year. I’m not sure when next year, but confidently next year, people would be able to add or subtract their car to the Tesla, Inc. fleet.”

As the platform will expand in Austin and the Bay Area for anyone, Tesla still continues to reiterate that Robotaxi will be available for everyone sometime next year, as Musk said in the quote above.

Things will continue to improve over time, and Tesla will likely expand its geofence in both regions in the coming weeks. It has already done that in Austin twice, with about a doubling in size occurring both times.

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