UPDATE: Tesla CEO Elon Musk did confirm that the Fremont Factory was shut down for two days due to parts shortages. Fremont restarted operation yesterday, Musk said.
Fremont shut down for two days (parts shortages) & restarted yesterday
— Elon Musk (@elonmusk) February 25, 2021
Tesla has halted its Model 3 production line at its California production plant, known more commonly as the Fremont factory, from February 22nd to March 7th, a report indicates.
Someone familiar with the matter indicated that Model 3 lines would be shut down for approximately two weeks, with the halt beginning this past Monday and lasting until Sunday, March 7th. The person who gave this information wished to remain anonymous.
The report from Bloomberg indicated:
“Staff on a Model 3 production line in Fremont were told their line would be down from Feb. 22 until March 7, said the person, who asked not to be identified because the information is private. The workers were told they would be paid for Feb. 22 and Feb. 23 and not paid for Feb. 28, March 1, 2 and 3. They were advised to take vacation time, if they had it.”
The reasoning for the production halt is still unknown at this point. However, growing speculation over a shortage in semiconductors worldwide seems to be the primary reason, but it hasn’t been confirmed. During the Q4 2020 Earnings, Tesla did admit that there was a shortage and that it was “working extremely hard to manage” the situation moving forward. Tesla’s CFO, Zachary Kirkhorn, said that the shortage could cause non-permanent consequences for the automaker.
Kirkhorn said:
“Specifically for Q1, our volumes will have the benefit of early Model Y ramp in Shanghai, However, S and X production will be low due to the transition to the newly architected products. Additionally, we’re working extremely hard to manage through the global semiconductor shortage as well as port capacity, which may have a temporary impact. We will continue to invest heavily in supercharging and service capacity while driving reductions on cost, including open as a percentage of revenue. Global demand continues to outpace production, and we’re moving as quickly as we can with a focus on the long term.”
The Model 3 line at Fremont is responsible for producing Tesla’s most popular car. The all-electric sedan combines affordability with performance and adequate range ratings to offer consumers some of the best bang-for-your-buck EV features available on the market today. Additionally, Tesla has been refining Fremont for years, working on adding new production lines, updating equipment, improving upon some facilities inside the plant, and expand the overall footprint of the factory to allow for more widescale production.
Tesla files to expand Fremont factory, make Model Y ‘tent’ permanent
The Fremont Factory still is Tesla’s most robust performer in terms of production output. The company’s figures suggest around 600,000 vehicles annually can be built at the facility in Northern California: 500,000 of them being Model 3 and Model Y vehicles. The remaining 100,000 are Model S and Model X cars, which CEO Elon Musk has said in the past are still built for “sentimental reasons.”
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Elon Musk makes a key Tesla Optimus detail official
“Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote on X.
Tesla CEO Elon Musk just made a key detail about Optimus official. In a post on X, the CEO clarified some key wording about Optimus, which should help the media and the public become more familiar with the humanoid robot.
Elon Musk makes Optimus’ plural term official
Elon Musk posted a number of Optimus-related posts on X this weekend. On Saturday, he stated that Optimus would be the Von Neumann probe, a machine that could eventually be capable of replicating itself. This capability, it seems, would be the key to Tesla achieving Elon Musk’s ambitious Optimus production targets.
Amidst the conversations about Optimus on X, a user of the social media platform asked the CEO what the plural term for the humanoid robot will be. As per Musk, Tesla will be setting the plural term for Optimus since the company also decided on the robot’s singular term. “Since we are naming the singular, we will also name the plural, so Optimi it is,” Musk wrote in his reply on X.
This makes it official. For media outlets such as Teslarati, numerous Optimus bots are now called Optimi. It rolls off the tongue pretty well, too.
Optimi will be a common sight worldwide
While Musk’s comment may seem pretty mundane to some, it is actually very important. Optimus is intended to be Tesla’s highest volume product, with the CEO estimating that the humanoid robot could eventually see annual production rates in the hundreds of millions, perhaps even more. Since Optimi will be a very common sight worldwide, it is good that people can now get used to terms describing the humanoid robot.
During the Tesla 2025 Annual Shareholder Meeting, Musk stated that the humanoid robot will see “the fastest production ramp of any product of any large complex manufactured product ever,” starting with a one-million-Optimi-per-year production line at the Fremont Factory. Giga Texas would get an even bigger Optimus production line, which should be capable of producing tens of millions of Optimi per year.
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Tesla is improving Giga Berlin’s free “Giga Train” service for employees
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
Tesla will expand its factory shuttle service in Germany beginning January 4, adding direct rail trips from Berlin Ostbahnhof to Giga Berlin-Brandenburg in Grünheide.
With this initiative, Tesla aims to boost the number of Gigafactory Berlin employees commuting by rail while keeping the shuttle free for all riders.
New shuttle route
As noted in a report from rbb24, the updated service, which will start January 4, will run between the Berlin Ostbahnhof East Station and the Erkner Station at the Gigafactory Berlin complex. Tesla stated that the timetable mirrors shift changes for the facility’s employees, and similar to before, the service will be completely free. The train will offer six direct trips per day as well.
“The service includes six daily trips, which also cover our shift times. The trains will run between Berlin Ostbahnhof (with a stop at Ostkreuz) and Erkner station to the Gigafactory,” Tesla Germany stated.
Even with construction continuing at Fangschleuse and Köpenick stations, the company said the route has been optimized to maintain a predictable 35-minute travel time. The update follows earlier phases of Tesla’s “Giga Train” program, which initially connected Erkner to the factory grounds before expanding to Berlin-Lichtenberg.
Tesla pushes for majority rail commuting
Tesla began production at Grünheide in March 2022, and the factory’s workforce has since grown to around 11,500 employees, with an estimated 60% commuting from Berlin. The facility produces the Model Y, Tesla’s best-selling vehicle, for both Germany and other territories.
The company has repeatedly emphasized its goal of having more than half its staff use public transportation rather than cars, positioning the shuttle as a key part of that initiative. In keeping with the factory’s sustainability focus, Tesla continues to allow even non-employees to ride the shuttle free of charge, making it a broader mobility option for the area.
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Tesla Model 3 and Model Y dominate China’s real-world efficiency tests
The Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km.
Tesla’s Model 3 and Model Y once again led the field in a new real-world energy-consumption test conducted by China’s Autohome, outperforming numerous rival electric vehicles in controlled conditions.
The results, which placed both Teslas in the top two spots, prompted Xiaomi CEO Lei Jun to acknowledge Tesla’s efficiency advantage while noting that his company’s vehicles will continue refining its own models to close the gap.
Tesla secures top efficiency results
Autohome’s evaluation placed all vehicles under identical conditions, such as a full 375-kg load, cabin temperature fixed at 24°C on automatic climate control, and a steady cruising speed of 120 km/h. In this environment, the Tesla Model 3 posted 20.8 kWh/100 km while the Model Y followed closely at 21.8 kWh/100 km, as noted in a Sina News report.
These figures positioned Tesla’s vehicles firmly at the top of the ranking and highlighted their continued leadership in long-range efficiency. The test also highlighted how drivetrain optimization, software management, and aerodynamic profiles remain key differentiators in high-speed, cold-weather scenarios where many electric cars struggle to maintain low consumption.

Xiaomi’s Lei Jun pledges to continue learning from Tesla
Following the results, Xiaomi CEO Lei Jun noted that the Xiaomi SU7 actually performed well overall but naturally consumed more energy due to its larger C-segment footprint and higher specification. He reiterated that factors such as size and weight contributed to the difference in real-world consumption compared to Tesla. Still, the executive noted that Xiaomi will continue to learn from the veteran EV maker.
“The Xiaomi SU7’s energy consumption performance is also very good; you can take a closer look. The fact that its test results are weaker than Tesla’s is partly due to objective reasons: the Xiaomi SU7 is a C-segment car, larger and with higher specifications, making it heavier and naturally increasing energy consumption. Of course, we will continue to learn from Tesla and further optimize its energy consumption performance!” Lei Jun wrote in a post on Weibo.
Lei Jun has repeatedly described Tesla as the global benchmark for EV efficiency, previously stating that Xiaomi may require three to five years to match its leadership. He has also been very supportive of FSD, even testing the system in the United States.
