Tesla Semi
The Tesla Semi is an all-electric battery-powered Class 8 semi-truck in development by Tesla, Inc. Two concept vehicles were unveiled in November 2017, and production in 2021 is planned.
The company initially announced that the truck would have a range on a full charge and with its new batteries it would be able to run for after an 80% charge in 30 minutes using a solar-powered "Tesla Megacharger" charging station. Tesla CEO Elon Musk said that the Semi would come standard with Tesla Autopilot that allows semi-autonomous driving on highways.
History
The Semi was first mentioned in the Tesla 2016 Master Plan. Tesla said at the time that they have a working prototype that uses 'a bunch' of Tesla Model 3 electric motors., Jerome Guillen had been leading the Tesla Semi program. Guillen was once in charge of Freightliner's Cascadia Diesel-engine Class 8 semi, before joining Tesla to configure the Model S production line, but left the Semi program a year later to lead one of the Model 3 general assembly lines and subsequently became Tesla president of automotive in September 2018. The new lead for the Semi program has not been publicly announced as of late 2019.The Semi was unveiled at a press conference on November 16, 2017, where Musk provided additional specifics. He claimed that the electric Semi would cost less to operate than a diesel truck if charged at a Megacharger, where Tesla would guarantee a price of 7 ¢/kWh. If the Semi is not charged at a Megacharger, the savings would depend on the cost of electricity; the high cost in California, for example, may eliminate the operating cost benefit.
In November 2017, Tesla projected that the expected price of regular production versions for the versions would be and respectively. The company stated they would offer a Founder's Series Semi at.
In March 2018, Tesla announced that the Semi was being tested with real cargo, hauling battery packs from Nevada to California. In August 2018, a Tesla Semi prototype traveled by itself—without escort or accompanying vehicles—for a week to arrive at the J. B. Hunt headquarters in Arkansas.
In June 2019, Tesla projected that production would begin by the end of 2020. A few months later, in the October Q3 investor call, they maintained the 2020 production target, albeit in limited numbers. In mid-January 2020, Tesla announced to its reservation holders a winter testing program to validate the Semi in cold weather and low-traction conditions. A few weeks later, in the 2019 Q4 earnings call, Elon Musk commented on the lack of battery production capability as one limiting factor for the conservative Semi production timeline, choosing to use battery supply for passenger cars instead.
A toy version of the Semi was released in January 2020 as part of the Matchbox Convoy line.
Orders
The first pre-orders came in the day of the press conference and by mid-January 2018 approximately 450 Semis had been pre-ordered. The original deposit required with an order was $5,000, which was increased to $20,000 after the event in November. In the Q1 2018 Tesla earnings call, Musk said that there were about 2,000 total pre-orders of the Semi.| Buyer | Quantity |
| Anheuser-Busch | 40 |
| Bee'ah | 50 |
| DHL Supply Chain | 10 |
| FedEx | 20 |
| Loblaw Companies | 25 |
| PepsiCo | 100 |
| Sysco | 50 |
| United Parcel Service | 125 |
| Walmart | 45 |
| Total | 465 |
November 2017 prototype and plans
In November 2017, Musk said that the Semi would be powered by four electric motors of the type used in the Tesla Model 3. Two battery configurations of and range were planned with the battery packs located under the floor of the cab, between the back and front wheels. Running empty, the long-range Tesla Semi would have a range of. Tesla said the Semi would have time of 5 seconds unloaded and in 20 seconds fully loaded. The Semi would be able to maintain a speed of on a 5% grade. The company touted a warranty for a million miles and said maintenance would be simpler than a diesel truck. A month after the reveal, Tesla reduced the uphill speed spec to 60 mph.In the prototype shown in November the driver's seat was located in the center of the cab. There was a removable jump seat for an extra passenger and there was no sleeping area. There were touchscreen displays on either side of the steering wheel, and no other instrument panels. Musk said that the windshield would be explosion-proof.
Tesla said that the Semi would be equipped with enhanced autopilot as standard equipment, offering semi-autonomous capability. Using more radar devices and cameras than Tesla cars, the system would enable the truck to stay in its own lane and a safe distance from other vehicles on a highway, would have emergency braking, and would warn the driver of any potential hazards near the vehicle. Tesla also said that new technology with active safety controls would detect and prevent jackknifing. Musk said that the system would eventually allow several units to operate in an autopilot-based convoy, led by a truck with a driver, that would be a cheaper alternative to rail transport. At the time, platooning was legal in only eight states and all required a human driver in each truck so changes in legislation would be necessary to achieve Musk's vision. Media reports noted the lack of specification for vehicle weight, as payload is restricted by government rules for the weight of the combined tractor-trailer.
In November 2017, Tesla said it planned to use the Semi to transport cargo between Gigafactory 1 and the Fremont plant.
Tesla Megacharger
At the November 2017 press conference Musk also said that the company would be involved in installing a global network of "Megachargers" that would be solar-powered and would be able to recharge a truck's batteries in 30 minutes to a capacity to travel. To accomplish this, it will likely have an output level over one megawatt.Third party analysis
An analyst with Jefferies Group expressed skepticism over some of Tesla's claims because the company had not determined battery longevity; specifics about that aspect, and the replacement cost of the battery, are essential in order to calculate the long-term cost of ownership.Some industry experts view heavy-duty freight as impractical for battery trucks due to cost and weight. A senior VP at Daseke Inc., a large trucking company, said that the limited range affected their likelihood of operating the Semi until the necessary infrastructure was in place.
A Bloomberg L.P. report showed that given the battery technology available in November 2017, Tesla's estimates for charging times, range per charge, and costs were not realistic, some suggesting that Tesla may be betting on increased battery density advances in the next couple of years to meet its stated goals.
A 2017 theoretical analysis of electric semi trucks was completed by researchers from the Carnegie Mellon College of Engineering in mid-2017, ostensibly in response to Musk's description of Tesla's work on a "a heavy duty, long-range semi truck" at a talk in April 2017.
The analysis estimated loads and ranges for an electric truck, given battery technologies known at that time, and published their work in June 2017. The analysis indicated that an electric semi might be feasible for short- or medium-range hauling, but would not be for long-range hauling, as the weight of the batteries required would take up too much of the weight allowed by law. One estimate for the battery weight, at 11,800 kg, was estimated to account for one third of the payload, and would increase the capital cost of the truck to about double that of an equivalent diesel.