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SpaceX resurrects California Starship factory plan just one year after abandoning it

Less than a year after SpaceX scrapped major plans for a Port of LA factory, the company is again in talks to build Starship hardware at the port. (Pauline Acalin)

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Just nine months after scrapping temporary Starship facilities built at a Los Angeles port, the company has unexpectedly reconsidered that decision, restarting talks to build a steel Starship factory in California.

In March 2018, nearly two years ago, the public first became aware of SpaceX’s plans to build a Starship factory in Port of Los Angeles. Begun while Starship was still known as BFR (Big Falcon Rocket) and designed to be built almost entirely out of carbon-fiber composites, the company’s first in-house effort to build its next-generation rocket began in an unassuming tent erected on port property around December 2017. Unintentionally foreshadowing the future of both Tesla Model 3 and SpaceX Starship production, that temporary tent was completed in just a month or two and officially began supporting BFR prototype production in April 2018.

In December 2018, CEO Elon Musk rebranded BFR as Starship and revealed that SpaceX would take the extraordinary step of redesigning the fully-reusable rocket to use stainless steel instead of carbon fiber. One year after SpaceX began building carbon fiber hardware, Musk moved quickly to make the radical move to steel permanent, literally scrapping its BFR prototype tent and abandoning its lease of a separate facility that was meant to host a more permanent composite Mars rocket factory in the near future. Now, almost exactly a year canceling its Port of LA factory, SpaceX has returned with plans to build and finish new port-based Starship production facilities just a few months from now.

Completed in September 2018, the closest SpaceX ever got to producing its 2017 BFR iteration was a large ring-like composite structure, also known as a barrel section. Measuring some 9m (30 ft) wide and 4-6m (12-20 ft) long, both 2016, 2017, and 2018 variants of SpaceX’s next-generation fully-reusable rocket would have been assembled from a number of similar components — all to be built out of carbon composites with giant mandrels (a bit like inverse molds).

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Building giant rockets and the factories needed for production is no less expensive. (Pauline Acalin)
SpaceX’s BFR tent (right) had a flap open on September 18th, 2018, revealing the rocket’s first and only full-scale composite prototype. (SpaceX/Pauline Acalin)
SpaceX’s Port of LA-based BFR development tent ceased to exist after the company decided to scrap it and the entirety of its contents in March 2019. (Pauline Acalin/SpaceX)

While it’s more than likely that SpaceX could have managed the feat, building a reusable orbital spacecraft like Starship out of carbon fiber posed a vast array of challenges. When Musk revealed that SpaceX would move from carbon fiber to steel in December 2018, the CEO went into some detail to explain several of those challenges and why the major change was thus worth the substantial body of work it would force the company to scrap and redo from scratch.

The two biggest hurdles for BFR were quite simple. From a technical perspective, carbon fiber is dramatically less temperature-resistant than most metals (especially steel), meaning that despite it offering a much higher strength-to-weight ratio on paper, almost every inch of the spaceship and booster’s exposed surfaces would have to be insulated. For Starship, this would be exceptionally challenging given that the spacecraft must fundamentally be able to survive numerous orbital-velocity reentries with little to no refurbishment in between. While a steel Starship would still need a proper heat shield on its windward half, the other half of its steel hull could likely be almost entirely unshielded thanks to the fact that most steels remain structural sound at much higher temperatures.

With a steel hull, Starship’s leeward (non-wind-facing) half can effectively be nude, saving (literal) tons of weight. (SpaceX)

Beyond the “delightfully counterintuitive” technical properties that could make a steel Starship as light or even lighter than the carbon composite alternative, Musk also noted that a huge motivator for the switch was the fact that the cutting-edge composites SpaceX would have to buy were incredibly expensive. In September 2019, Musk stated that composites would have cost some $130,000 per ton, whereas a ton of the stainless steel SpaceX is now using can be purchased for just $2500. In simpler terms, from a material cost perspective, steel Starships and Super Heavy boosters could cost an incredible 50 times less than their carbon composite twins.

Port Factory 2.0

For now, it’s unclear exactly what SpaceX foresees for Starship’s newly re-proposed Port of LA factory. The same primary constraint remains: there is still no affordable way to ship full-scale 9m-diameter Starship hardware by road. The most likely explanation for the resurrected interest in port facilities is that SpaceX still wants to keep some major aspects of Starship manufacturing within reach of California’s vast aerospace talent pool, as well as the company’s own California headquarters, situated just 20 or so miles from Port of LA.

Before SpaceX vacated its prospective BFR factory at Port of LA Berth 240, it had performed a small amount of earthmoving and foundation work. (Pauline Acalin – November 2018)

At the same time, SpaceX probably has all the space it could possibly want at its Hawthorne, CA headquarters after a massive Triumph facility was recently vacated, meaning that any intentional expansion in Port of LA is probably motivated by the need to transport massive rocket parts from California to Texas and Florida. Daily Breeze also reports that “SpaceX would manufacture its…Starship spacecraft and…Super Heavy [booster] on the property” if it receives approval, seemingly implying interest in full-scale rocket production at its prospective port factory.

Regardless of whether SpaceX wants to build smaller Starship subcomponents (i.e. nose cones, header tanks, fins, plumbing, crew compartments, etc.) or complete spaceships and boosters, the company is seemingly far more eager to get port facilities in place, this time around. Specifically, SpaceX told a city council member that it wanted to get a Port of LA facility up and running just 90 days after it expressed new interest in the concept.

At SpaceX’s Boca Chica, Texas outpost, the company has used Sprung Structures to add 100,000+ square feet of enclosed factory space in just a month or two. (NASASpaceflight – bocachicagal)

To do so, SpaceX will copy the methods used to create both Tesla’s General Assembly 4 factory addition and its own massive Starship production space in South Texas, relying on Sprung Instant Structures to erect a massive semi-permanent tent or two in an extremely short period of time. Unfortunately, because of how abruptly SpaceX abandoned its Port of LA factory lease, the company will have to repeat the permitting and environmental review process from scratch, making it very unlikely that it will be able to begin construction within the next month or two.

Regardless, SpaceX certainly remains as agile as ever. Stay tuned for updates on this surprise resurgence of plans for a Port of LA Starship factory.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla Cybercab spotted with interesting charging solution, stimulating discussion

The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.

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Credit: What's Inside | X

Tesla Cybercab units are being tested publicly on roads throughout various areas of the United States, and a recent sighting of the vehicle’s charging port has certainly stimulated some discussions throughout the community.

The Cybercab is geared toward being a fully-autonomous vehicle, void of a steering wheel or pedals, only operating with the use of the Full Self-Driving suite. Everything from the driving itself to the charging to the cleaning is intended to be operated autonomously.

But a recent sighting of the vehicle has incited some speculation as to whether the vehicle might have some manual features, which would make sense, but let’s take a look:

The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.

Now, it is important to remember these are prototype vehicles, and not the final product. Additionally, Tesla has said it plans to introduce wireless induction charging in the future, but it is not currently available, so these units need to have some ability to charge.

However, there are some arguments for a charging system like this, especially as the operation of the Cybercab begins after production starts, which is scheduled for April.

Wireless for Operation, Wired for Downtime

It seems ideal to use induction charging when the Cybercab is in operation. As it is for most Tesla owners taking roadtrips, Supercharging stops are only a few minutes long for the most part.

The Cybercab would benefit from more frequent Supercharging stops in between rides while it is operating a ride-sharing program.

Tesla wireless charging patent revealed ahead of Robotaxi unveiling event

However, when the vehicle rolls back to its hub for cleaning and maintenance, standard charging, where it is plugged into a charger of some kind, seems more ideal.

In the 45-minutes that the car is being cleaned and is having maintenance, it could be fully charged and ready for another full shift of rides, grabbing a few miles of range with induction charging when it’s out and about.

Induction Charging Challenges

Induction charging is still something that presents many challenges for companies that use it for anything, including things as trivial as charging cell phones.

While it is convenient, a lot of the charge is lost during heat transfer, which is something that is common with wireless charging solutions. Even in Teslas, the wireless charging mat present in its vehicles has been a common complaint among owners, so much so that the company recently included a feature to turn them off.

Production Timing and Potential Challenges

With Tesla planning to begin Cybercab production in April, the real challenge with the induction charging is whether the company can develop an effective wireless apparatus in that short time frame.

It has been in development for several years, but solving the issue with heat and energy loss is something that is not an easy task.

In the short-term, Tesla could utilize this port for normal Supercharging operation on the Cybercab. Eventually, it could be phased out as induction charging proves to be a more effective and convenient option.

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Tesla confirms that it finally solved its 4680 battery’s dry cathode process

The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.

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tesla 4680
Image used with permission for Teslarati. (Credit: Tom Cross)

Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years. 

The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.

Dry cathode 4680 cells

In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.

The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”

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Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.

4680 packs for Model Y

Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla: 

“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”

The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.

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Tesla Giga Texas to feature massive Optimus V4 production line

This suggests that while the first Optimus line will be set up in the Fremont Factory, the real ramp of Optimus’ production will happen in Giga Texas.

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Credit: Tesla/YouTube

Tesla will build Optimus 4 in Giga Texas, and its production line will be massive. This was, at least, as per recent comments by CEO Elon Musk on social media platform X.  

Optimus 4 production

In response to a post on X which expressed surprise that Optimus will be produced in California, Musk stated that “Optimus 4 will be built in Texas at much higher volume.” This suggests that while the first Optimus line will be set up in the Fremont Factory, and while the line itself will be capable of producing 1 million humanoid robots per year, the real ramp of Optimus’ production will happen in Giga Texas. 

This was not the first time that Elon Musk shared his plans for Optimus’ production at Gigafactory Texas. During the 2025 Annual Shareholder Meeting, he stated that Giga Texas’ Optimus line will produce 10 million units of the humanoid robot per year. He did not, however, state at the time that Giga Texas would produce Optimus V4. 

“So we’re going to launch on the fastest production ramp of any product of any large complex manufactured product ever, starting with building a one-million-unit production line in Fremont. And that’s Line one. And then a ten million unit per year production line here,” Musk stated. 

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How big Optimus could become

During Tesla’s Q4 and FY 2025 earnings call, Musk offered additional context on the potential of Optimus. While he stated that the ramp of Optimus’ production will be deliberate at first, the humanoid robot itself will have the potential to change the world. 

“Optimus really will be a general-purpose robot that can learn by observing human behavior. You can demonstrate a task or verbally describe a task or show it a task. Even show it a video, it will be able to do that task. It’s going to be a very capable robot. I think long-term Optimus will have a very significant impact on the US GDP. 

“It will actually move the needle on US GDP significantly. In conclusion, there are still many who doubt our ambitions for creating amazing abundance. We are confident it can be done, and we are making the right moves technologically to ensure that it does. Tesla, Inc. has never been a company to shy away from solving the hardest problems,” Musk stated. 

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