So, how well does the Tesla Semi fare against its diesel-chugging counterparts? According to trucking financing service Bobtail, truckers usually cover around 400 to 500 miles per shift on average, or about 100,000 per year, with conventional semi trucks having engines capable of lasting 700,000 to even a million miles. When regularly maintained, these trucks can reportedly continue operating after two decades. As for maintenance, the average semi truck repair costs go for about $15,000 per year, according to trucking company International Used Truck Centers and Truckers Report. Sure, the Tesla Semi might have fewer moving parts that need constant repairing, but simply being an EV can be detrimental to its longevity.
Expensive battery replacement is a major factor that’s been dissuading potential Tesla buyers, as replacing even a base Tesla Model 3 battery can reach nearly $16,000. The thing is, the Tesla Semi makes use of three electric motors (via Tesla). Not only is it bigger than a Model 3, but it will also be subjected to more abuse as well when used for hauling cargo, possibly wearing down those batteries quicker than usual. Its impracticality becomes apparent when compared to the more durable, faster-refueling diesel engine alternative. Only time will tell if the Tesla Semi’s improved 4680 cells make it a more viable trucking solution, but until then, its actual reliability in real-world use cases remains to be seen.
