Tesla Semi’s Official Specs Revealed: 822 kWh Beast Reshapes Class 8 Trucking in 2026
After nearly a decade since its dramatic 2017 unveiling, the Tesla Semi is no longer vaporware—it’s rolling off production lines and poised to disrupt the $100 billion North American Class 8 trucking market. A recent California Air Resources Board (CARB) filing from April 2026 has spilled the beans on the truck’s core specs, confirming battery capacities, power outputs, and chemistry that make it a formidable contender against diesel giants. Coupled with high-volume production ramping at Tesla’s Sparks, Nevada facility—as announced by Semi Program Director Dan Priestley on X on April 29, 2026—this is the moment fleets have been waiting for.