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.[2]

Tesla Semi
A Tesla Semi truck
Overview
ManufacturerTesla, Inc.
Also called
Body and chassis
ClassClass 8 heavy-duty truck
Body styleTractor unit for semi-trailer
Powertrain
PropulsionElectric motors
Electric range300 or 500 mi (480 or 800 km)

The company initially announced that the truck would have a 500 miles (805 km) range on a full charge and with its new batteries it would be able to run for 400 miles (640 km) 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.[3] Tesla said at the time that they have a working prototype that uses 'a bunch' of Tesla Model 3 electric motors.[4] As of April 2017, 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,[5][6] but left the Semi program a year later to lead one of the Model 3 general assembly lines[7] and subsequently became Tesla president of automotive in September 2018.[8] 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 20 ¢/mi (12 ¢/km) less to operate than a diesel truck if charged at a Megacharger, where Tesla would guarantee a price of 7 ¢/kWh (in the United States).[9][10] 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.[10]

Two prototype Tesla Semis in Rocklin, California

In November 2017, Tesla projected that the expected price of regular production versions for the 300-and-500-mile-range (480 and 800 km) versions would be US$150,000 and US$180,000 respectively. The company stated they would offer a Founder's Series Semi at US$200,000.[11]

In March 2018, Tesla announced that the Semi was being tested with real cargo, hauling battery packs from Nevada to California.[12] 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.[13][14][15]

In June 2019, Tesla projected that production would begin by the end of 2020.[16] A few months later, in the October Q3 investor call, they maintained the 2020 production target, albeit in limited numbers.[17] 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.[18][19] 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.[20][21]

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.[22][23][24][25] The original deposit required with an order was $5,000, which was increased to $20,000 after the event in November.[26] In the Q1 2018 Tesla earnings call, Musk said that there were about 2,000 total pre-orders of the Semi.[27]

Tesla Semi cockpit
Notable orders
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.[28] Two battery configurations of 300 miles (480 km) and 500 miles (805 km) range (fully loaded) were planned with the battery packs located under the floor of the cab, between the back and front wheels.[28] Running empty, the long-range Tesla Semi would have a range of 620 miles (997 km).[29] Tesla said the Semi would have 0–60 mph (0–97 km/h) time of 5 seconds unloaded and in 20 seconds fully loaded.[10] The Semi would be able to maintain a speed of 65 mph (105 km/h) on a 5% grade.[30] The company touted a warranty for a million miles (1.6 million km) and said maintenance would be simpler than a diesel truck.[10] A month after the reveal, Tesla reduced the uphill speed spec (by 5 mph) to 60 mph.[31][32]

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.[30][28] There were touchscreen displays on either side of the steering wheel, and no other instrument panels.[30] Musk said that the windshield would be explosion-proof.[30]

Tesla said that the Semi would be equipped with enhanced autopilot as standard equipment, offering semi-autonomous capability.[33] 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.[10] Tesla also said that new technology with active safety controls would detect and prevent jackknifing.[10] 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.[34] 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.[34] 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.[35][30]

In November 2017, Tesla said it planned to use the Semi to transport cargo between Gigafactory 1 and the Fremont plant.[36][37]

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 400 miles (640 km).[38][34][39] To accomplish this, it will likely have an output level over one megawatt.[40]

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.[41]

Some industry experts view heavy-duty freight as impractical for battery trucks due to cost and weight.[35][42][43] 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.[44]

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,[38] some suggesting that Tesla may be betting on increased battery density advances in the next couple of years to meet its stated goals.[45]

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.[46] The analysis estimated loads and ranges for an electric truck, given battery technologies known at that time, and published their work in June 2017.[47] 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.[47] 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.[48]

Competition

Other companies developing class 8 electric trucks include: BYD Company,[30] Daimler AG,[49] Kenworth,[30] Nikola Motor,[30] Peterbilt,[50] Toyota[30], Volvo,[51] and Xos (Thor).[52] Other companies developing electric trucks, which are not class 8, include: Cummins,[53] DAF Trucks,[54] Einride,[55] Uber,[9] and Volkswagen.[9]

gollark: It is called "drafting", yes.
gollark: You should learn to be more independent and to randomly make up things which might work.
gollark: My limit is about three or four per paragraph, that isn't even close.
gollark: That's ONE SENTENCE, what is your problem?
gollark: Also, for mathy things I can randomly mess around on my calculator to try and numerically work out bits of the problem (which I am *pretty good* at, since I actually know most of the features of said calculator and how to combine them) and for computery things I can probably get somewhat working code done quickly and try and iterate on it.

See also
  • Toyota Project Portal - Class 8 fuel cell truck
  • Cummins Aeos - Class 7 electric and range extender truck
  • Freightliner eCascadia - Class 8 battery-electric tractor variant of conventional truck

References
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