The Zhitong Finance App learned that the Tesla (TSLA.US) Semi truck, which appeared as a “concept car” nine years ago, has finally entered a phase where production capacity is climbing. The exclusive Sparks plant in Nevada was officially put into operation in September, with an annual design capacity of 50,000 vehicles. The order book for 2,500 ZET SCALE vehicles, 500 Einride vehicles, 370 WatteV vehicles, and 50 IMC Logistics vehicles provided initial demand support for the upward trend in production capacity. However, analysts' predictions for the full year of 2026 are only 5,000 to 15,000 vehicles, less than one-third of the design production capacity. A valuation game between “production capacity painting” and “delivery and fulfillment” kicked off.
Tesla opened its first factory for Semi trucks in September in Sparks, Nevada, near Reno. Dan Priestley, project leader at Semi, said, “It's not just an assembly plant. It connects almost the entire process from raw materials entering the factory to the finished product leaving the factory.” The plant covers an area of about 16.7,000 square meters and is next to Tesla's largest battery factory, Giga Nevada.
According to reports, the price of the Tesla Semi before the subsidy is included: 260,000 US dollars for the 325-mile standard battery life version and 290,000 US dollars for the 500-mile long battery life version. The price of a new diesel tractor of the same type is usually around $150,000 to $200,000. Other truck manufacturers that sell electric models include Daimler Trucks (DTRUY) Freightliner eScadia (DTRUY), Volvo, and the Kenworth and Peterbilt brands owned by PCAR (PCAR).
Mass production nine years late: the order book looks good, but the concentration is worrying
Semi's ticketing history spans almost the entire commercialization cycle of Tesla. When it was released in November 2017, Musk indicated that the production period was 2019. Since then, due to factors such as delays in the 4680 battery dry electrode process and breakdowns in the global supply chain, the mass production node has moved backwards again and again, and the first batch of “trial operation” vehicles were not delivered to Pepsi until December 2022. In April 2026, the first mass-produced car in the true sense of the word was launched on the high-production line.
The order structure is also worth reviewing. ZET SCALE's 2,500 vehicle order is certainly the largest single purchase in US electric heavy truck history, but the order is not exclusive to Tesla — Kenworth and Volvo are also on the supplier list, and Tesla's “main supplier” status does not mean that the order is locked in exclusivity.
EinRide's order for 500 cars and WatteV's 370 vehicles is not enough in absolute scale to fill a plant with an annual production capacity of 50,000 vehicles. If the delivery volume falls to the lower limit of 5,000 vehicles in 2026, the ZET SCALE order alone will consume 50% of the annual production, and the delivery cycle will be forced to be extended to one to two years. The risk of customer concentration and the risk of idling production capacity coexist.
The “paper numbers” of 50,000 production capacity and the physical constraints of climbing a hill
Tesla claims that the factory has an annual production capacity of 50,000 vehicles. Based on an average unit price of about 275,000 US dollars, full production corresponds to annual revenue of about 14 billion US dollars. However, between “production capacity” and “production volume,” there is a hard constraint constructed by battery supply. SEMI is equipped with a 900 kWh battery pack. The demand for batteries in a single vehicle is more than ten times that of passenger cars, and the dry electrode process for 4680 batteries did not achieve a substantial breakthrough until the end of 2025. The climbing pace of the battery production line directly determined the maximum delivery limit for Semi.
The competition window is also narrowing. The Freightliner eScadia is currently the most widely deployed Class 8 electric heavy truck in North America, but the battery life is only about 230 miles, and the price is 350,000 to 400,000 US dollars; the Volvo VNR Electric has a battery life of about 275 miles. Tesla Semi's 500-mile battery life and $260,000 to $290,000 pricing form significant parametric arbitrage, but the window for realizing this advantage depends on the iterative pace of the next generation of products from traditional giants. Once Daimler or Volvo pushes battery life beyond 400 miles, Semi's first-mover parameter advantage will be quickly diluted.
For investors: Short-term financial contributions are weak, and long-term option pricing has been overly advanced
As far as the recent financial impact is concerned, Semi will hardly leave a visible mark on Tesla's profit sheet. Even based on a delivery limit of 15,000 vehicles and an average price of 275,000 US dollars, Semi's annual revenue contribution is less than 4 billion US dollars, which is insignificant compared to Tesla's total revenue of about 104 billion US dollars over the past 12 months. Using short-term fundamentals to explain the semi value implied in current stock prices doesn't work.
The pricing anchor in the market is not vehicle sales, but the potential for refactoring autonomous driving software. Morgan Stanley estimates that if Tesla were to deploy 82,000 Semis (corresponding to a 13.5% share of the addressable autonomous truck market) by 2040, only a software license fee of $0.85 to 1.00 US dollars per mile would generate annual revenue of 17 billion US dollars and an incremental EBIT of about 7.5 billion US dollars. The premise behind the establishment of this narrative logic is extremely strict: FSD's regulation and release in the heavy truck scene, fleet operators' willingness to pay, and Tesla's competitive card position against pioneers such as Aurora and Kodiak on autonomous truck tracks. Any delay will drastically reduce forward cash flow discounts.
Another risk variable in the short term comes from product safety narratives. On October 27, a Semi caught fire on California's I-880 without collision. The battery burned for nearly 10 hours, causing the road section to be closed in both directions. This is the second time Semi has caused a prolonged road closure on the California Expressway, and the accident did not involve an external collision. Naturally, the focus of the investigation was on the battery pack or the high-voltage system itself. Although the findings of the investigation have not yet been released, any evidence pointing to inherent product defects will directly impact the procurement pace of major customers such as ZET SCALE at the point where production capacity climbing most requires customer confidence.
Semi's mass production is a milestone nine years late, but the valuation narrative it leverages is far more complicated than a factory's annual production capacity figures. For investors, what they really need to track is not the “50,000 vehicle production capacity” title, but rather the slope of the actual delivery curve in 2026, the operating cost per mile data for the first large-scale fleets, and the pace of implementation of the autonomous truck regulatory framework. Before these three clues gave a clear signal, Semi was more like a long-term call option discounted in advance by the market than a contributor to current profits.