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Tesla’s 4680 Kato Rd. facility has a top 10 capacity, and it’s not even close to finished
Tesla CEO Elon Musk disclosed some details about the electric automaker’s 4680 cell plant last week. After stating that the facility is “probably in the top 10 battery cell factories on Earth despite being a pilot plant,” speculation began about how massive Tesla’s new facility that sits just across the street from the Fremont production facility is. Although it is in the top 10, it’s not even close to finished.
Tesla’s introduction of the 4680 battery cell came in September 2020 at the Battery Day event. Musk and others outlined the company’s roadmap for global EV dominance through the most important part of an electric car: the cell. The new cell has 500% more energy, six times the power of the old 2170 cells, and also offers dramatic range increases for more drive time between charges. It was truly revolutionary because Tesla is already the most notable company in electric cars.
With a considerable lead in the EV sector, Tesla was effectively announcing, “eat our (sustainable) dust” after showing the new 4680 cells. Some were skeptical, believing that the new cell wouldn’t be available for some time. Musk immediately silenced those doubts, indicating that the new cells had been deployed in working vehicles for months.
Credit: Tesla
The point is, the Kato Road facility, as it is widely known as, is one of the largest facilities in the world. While we are not sure what the current capacity is, if it is a top 10 facility in terms of capacity, we can speculate how big it may be.
According to Argus Media, the 10 largest battery cell plants range from 24 GWh per year to 70 GWh per year. The largest, an LG Chem facility in Wroclaw, Poland, has the 70 GWh capacity, leading BYD’s Qinghai, China plant by 10 GWh. Tesla and Panasonic’s joint venture at Gigafactory 1 in Nevada is a 35 GWh per year facility, making it the fifth-largest plant globally.
Credit: Argus Research
Because Tesla’s Kato Road facility is a pilot plant, we can likely assume that it is within the bottom half of this list. Especially with Gigafactory 1 being the fifth-largest, it is very likely that Kato Road is simply not producing as many cells or as much battery capacity as Giga 1, but it’s not to say that this won’t happen. The issue is that Tesla is still battery constrained, even with a large-scale facility in Nevada and with several third-party manufacturers pumping cells to the automaker at a massive rate. Kato Road will contribute to the solution to the constrained problem, and the facility will likely be significantly larger than Giga 1, considering the projects that Tesla plans to fulfill with the 4680 cells, the largest being the Tesla Semi.
The Semi is still not ready for production, Musk said on the Q4 Earnings Call last week. “We will have cells group in ourselves for Semi when we were producing the 4680 volume. But for example, Semi would use typically five times the number of cells that a car would use, but it would not sell for five times what a car would sell for. So it kind of doesn’t make…it would not make sense for us to do the Semi right now,” Musk said. The issue is cell availability, and since the Semi is going to equip Tesla’s newest 4680 project, it is safe to assume that Kato Road still has some expanding to do. If it is already a top 10 facility, yet it is still not ready to take on the massive Semi task, along with all of the other vehicles it will eventually fulfill, Kato Road may become a top 3 facility.
Ultimately, Tesla requires more cells. With no plans to eliminate purchases from third-party suppliers in the near-term, Tesla wants to increase purchases from those suppliers. CATL, Panasonic, and LG Chem could supply Tesla with more batteries moving forward, even with the Kato Road facility’s expansion and ramping up. The fact is, Tesla isn’t done solving the battery constraint issue, and it could battle with it for years to come. However, it won’t stop production from increasing because more cells are becoming available almost every day through supplier deals, increased outputs, and in-house manufacturing advancements, all of which make Tesla the company to beat for the foreseeable future.
Elon Musk
Elon Musk’s next Uranium in Uranus merch is Boring Company’s weirdest tease yet
Elon Musk teased a glowing new Boring Company merch idea, complete with a Geiger counter.
Elon Musk teased the next piece of Boring Company merchandise on X Saturday, and it is exactly as unserious as fans of the company’s product history have come to expect. “The next @boringcompany merch will put Uranium in Uranus,” Musk wrote in a thread posted early Saturday morning. He followed up by explaining that the item would glow in the dark, “because otherwise how could you find it,” and that a Geiger counter would be sold separately as “an optional strap-on.”
Musk closed the thread with a line that doubles as a mission statement for the tunneling company’s merchandise arm: “It’s not easy coming up with something that is both outrageously unsellable and yet extremely popular.”
The Boring Company has built a small but consistent side business out of novelty items that start as jokes and end up selling out. The company’s Not-a-Flamethrower raised roughly $10 million in a few days back in 2018, moving all 20,000 units it produced. Its Burnt Hair perfume, priced around $100 a bottle, sold out fast enough that scalpers were flipping units on eBay for ten times the retail price. Boring Bricks, made from tunneling spoil, followed the same playbook of teasing a product on X months before it became real.
Musk has not said what the actual item will be, only that it involves uranium and glows in the dark. Given the pattern, that vagueness is probably intentional. Past merch announcements have started as one-line jokes and taken weeks or months to turn into an actual product listing on the company’s site, and there is no guarantee this one follows through at all.
The timing lines up with a period of real momentum for the Boring Company outside of the joke merchandise. The company said last week it plans to double the number of operational stations on its Vegas Loop by the end of the year, a target tied to a hiring push for drivers and operations managers. Prufrock-5, one of the company’s tunnel boring machines, also just wrapped a test tunnel in Bastrop, Texas, and is expected to relaunch on its next assignment in November.
Whether the uranium joke turns into an actual product remains to be seen. Musk’s post did not include a price, a shipping date, or even a name for the item, which has historically meant a Boring Company website page goes up quietly, password protected, sometime before an announcement.
News
NASA taps SpaceX for more astronaut missions as Boeing Starliner remains grounded
NASA just gave SpaceX a $946 million contract for three more astronaut missions through 2030.
NASA has awarded SpaceX a $946 million contract modification covering three more astronaut missions to the International Space Station, according to an announcement the agency published Friday. The award adds Crew-15, Crew-16, and Crew-17 to SpaceX’s existing Commercial Crew Transportation Capability contract, bringing the agreement’s total value to $5.92 billion across 17 flights.
SpaceX confirmed the award on X, writing that it was excited for Falcon 9 and Dragon to launch NASA’s Crew-15, 16, and 17 missions to the Space Station from Florida. The new missions cover ground, launch, in orbit, and return operations, along with cargo transport and a lifeboat capability while docked at the station, and the period of performance runs through 2030.
We’re excited for Falcon 9 and Dragon to launch @NASA’s Crew-15, 16, and 17 missions to the @Space_Station from Florida https://t.co/Qm16vVK9F3 pic.twitter.com/drg3s7GtuM
— SpaceX (@SpaceX) September 18, 2026
The award follows a notice of intent NASA issued in May, when the agency first signaled it would purchase up to six additional post certification missions from SpaceX. Teslarati covered that filing at the time, noting NASA cited technical issues and schedule delays encountered by Boeing as a driving factor. Friday’s contract modification locks in three of those six missions, with the remaining three left open for NASA to award later, potentially to Boeing if Starliner clears certification.
Boeing’s CST-100 Starliner has still not flown an operational crew rotation mission for NASA. The spacecraft’s most recent crewed test flight in 2024 ended without the astronauts returning aboard Starliner, and the company has spent the time since working through thruster problems. SpaceX President Gwynne Shotwell said this week that SpaceX is not retiring Crew Dragon today, for sure, while stopping short of committing to fly it past 2030.
Crew-12 is currently docked at the space station, and NASA has said Crew-13 is targeting a launch in the coming weeks. The newly awarded Crew-15 through Crew-17 missions extend SpaceX’s role as NASA’s primary way of getting astronauts to and from orbit well into the back half of the decade, regardless of what happens with Starliner or Starship in the meantime.
Investor's Corner
New drone video shows Tesla’s Optimus Factory reaching a turning point
New drone footage shows Tesla’s dedicated Optimus factory steel frame nearing completion at Giga Texas.
Tesla’s dedicated Optimus factory at Gigafactory Texas is closing in on a finished steel frame, according to drone footage posted Thursday afternoon by longtime site observer Joe Tegtmeyer. In the video, Tegtmeyer said structural steel assembly is now about five column grids away from reaching the building’s north perimeter beam, putting the primary skeleton in its final stretch roughly six months after Tesla broke ground on the North Campus site in late March.
The Giga Texas Optimus Factory latest update … construction keeps moving fast!
Steel assembly is now only about 5 column grids from the north perimeter beam. Concrete is going in on the three upper floors, rebar is still being laid for more pours, and footing / grade-beam work… pic.twitter.com/qvFPvwnYzW
— Joe Tegtmeyer 🚀 🤠🛸😎 (@JoeTegtmeyer) September 17, 2026
Tegtmeyer’s footage shows concrete already going in on three upper floors while crews continue laying rebar and pouring grade beam footings at ground level. That kind of parallel work, steel rising at one end of the site while concrete sets at the other, is a scheduling approach Tesla used at the original Giga Texas building and appears to be repeating here to save time before the plant’s targeted 2027 production start.
Teslarati has tracked the building’s progress since Tesla confirmed construction was officially underway in May, when the first steel structure went up on what was then bare, reclaimed land. The facility is part of a more than 5.2 million square foot expansion of Giga Texas’s North Campus that Tesla has said will eventually run nearly the length of the existing vehicle factory, over 4,000 feet, while sitting somewhat narrower. Musk has pegged the long term output target at 10 million Optimus units a year once the line is running at full capacity, a volume that would dwarf the one million unit pilot line Tesla is standing up separately at its Fremont, California factory.
Tesla Giga Texas to feature massive Optimus V4 production line
The Texas facility sits alongside another major buildout on the same campus. Terafab, the joint Tesla and SpaceX chip fabrication plant that will eventually supply the silicon running Optimus units in the field. Housing robot assembly and chip production on the same grounds is a deliberate supply chain decision, cutting down on the shipping and lead time that would otherwise sit between the two.
Tesla has not given an updated timeline beyond its previously stated goal of bringing high volume Optimus production online at the site in the summer of 2027. Fremont’s smaller pilot line began mass producing the current Gen 3 robot in January, with that plant expected to build tens of thousands of units this year primarily to generate the real world data Tesla needs to refine the robot’s software before Giga Texas ramps up. Six months of visible construction progress, tracked almost entirely through Tegtmeyer’s recurring drone flights, gives the clearest outside look yet at how seriously Tesla is treating that 2027 deadline.