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Tesla Semi Truck Beats Musk's Own Efficiency Claims
23 Jun
Summary
- Tesla Semi achieved 1.55 kWh per mile, exceeding Musk's 1.7 kWh claim.
- ArcBest's pilot program reported excellent efficiency over 4,500 miles.
- Truckers and logistics companies are increasingly impressed with the Semi.

Tesla's Semi electric truck is making significant strides, recently demonstrating remarkable efficiency that surpasses earlier projections. During a pilot program with logistics company ArcBest, the Semi averaged an outstanding 1.55 kWh per mile over nearly 4,500 miles. This figure is a notable improvement over the 1.7 kWh per mile efficiency claimed by Elon Musk during the 2022 unveiling, and also betters results from earlier tests by DHL and Saia.
The enhanced efficiency is allowing ArcBest to conduct thorough comparisons of the Tesla Semi against its existing diesel fleet. These benchmarks cover critical areas such as total cost of ownership, operational effectiveness, safety protocols, and the overall employee experience. These factors are paramount for large-scale fleet acquisition decisions.
Impressed truckers and a growing order book indicate a positive reception for the Semi. Industry experts acknowledge its potential to be a game-changer in the electric heavy-duty truck market, with no other electric big rig currently matching its performance metrics.