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Tesla files to build EV batteries on new production lines at Fremont Factory

Credit: Tesla

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Tesla (NASDAQ: TSLA) has filed to build a new battery manufacturing equipment line at the Fremont Factory in Northern California. The factory, which Tesla purchased in 2010, is the only in the company’s lineup to produce all four models. It has not been known as a battery cell or pack manufacturing plant, as the company’s Gigafactory in Sparks, Nevada, produces those EV components. However, the filings indicate Tesla may be looking to slightly expand its cell manufacturing efforts with new production lines at Fremont.

Filed and signed by Tesla on August 30, the permit is labeled as “Tesla F21-0391-A – CTA Battery B-Build.” Tesla gives the following description of the project:

“NEW BATTERY MANUFACTURING EQUIPMENT LINE ON 2ND FLOOR OF MAIN ASSEMBLY BUILDING. THIS PERMIT APPLICATION RELATES TO THE MODULE PORTION OF THE LINE.”

The project is valued at $1.5 million, according to documents seen by Teslarati.

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tesla battery cell manufacturing filing

Credit: City of Fremont

Credit: City of Fremont

Additionally, another application reveals a $1.3 million project that includes the installation of a new maintenance office, a storage area, production cells with equipment for hood, fender, and trunk lids, and offline cell manufacturing equipment. This project is listed to be on the first floor of the assembly building.

Interestingly, the Fremont Factory has been one of Tesla’s more spacially-confined facilities. Earlier this year, during a visit from Morgan Stanley analysts, including Adam Jonas, the firm noted the Fremont Factory was incredibly tight in terms of storage capacity and room in general. Despite running at a capacity of 20 percent above what has been considered its maximum. “The plant was never designed to produce 450k units (at its peak produced ~300k units before Tesla took it over from Toyota), which was immediately apparent at the tour, ” Jonas wrote in his note describing the visit. “Tesla does not shy away from the fact the plant is inefficiently designed with four assembly buildings, one of which is a tent that cars are assembled in,” referring to GA 4.5, which was made permanent last year.

Just two weeks prior to Morgan Stanley’s visit to Fremont, CEO Elon Musk stated Tesla was considering expanding Fremont “significantly.” While many of us just thought this likely meant an expansion of vehicle production alone, Musk may have been hinting toward an expansion of the manufacturing process altogether.

Tesla battery manufacturing efforts

Tesla has held battery supply deals with Panasonic, CATL, and LG Chem, but has also started building its own cells in-house. In 2020, Tesla unveiled its 4680 battery cell, which has already been prototype-tested by Panasonic. Tesla has been building the cell at the Kato Rd. facility just a few blocks away from Fremont’s front doors. However, the automaker has not scaled this cell to mass production as of yet, and Tesla could always use more battery cells.

With the 4680 cell not quite reaching mass production volumes yet, an order log that grows with what seems to be every minute, and a production volume that just simply has not caught up to Tesla’s demand, it would make sense to expand in-house battery manufacturing efforts as supplementary support.

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“I think we’ve said this now for many years. I know has proven true. Tesla does not have a demand problem, we have a production problem. And we’ve almost always had it’s a very rare exception it’s always been a production problem,” Musk said after Q2. “I think that will remain the case.”

Rearranging at the Fremont Factory

Over the past month or so, Tesla has filed to make many significant changes at the Fremont Factory. After we reported on the construction efforts that are seemingly underway, Tesla has also been filing several applications with the City of Fremont for equipment repositioning, as well as the construction of new foundations and manufacturing equipment. Even things as simple as light poles are being repositioned to make way for potential new manufacturing buildings.

Tesla Fremont plant is abuzz with activity as nearby construction goes underway

Tesla has also started relocating Model S and X production equipment to other portions of the factory. “GASX,” which we can assume is “General Assembly Model S and X,” has had a hoist relocated, according to filings. Tesla has also filed to install production tools and other associated Model S and Model X manufacturing utilities in the factory. This does not necessarily imply that production lines for the two vehicles will be expanding, especially considering the vehicles make up an extremely small portion of Tesla’s overall sales. However, these manufacturing lines may be shifting to other locations at Fremont to make way for the perhaps imminent installation of cell manufacturing lines at Fremont.

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I’d love to hear from you! If you have any comments, concerns, or questions, please email me at joey@teslarati.com. You can also reach me on Twitter @KlenderJoey, or if you have news tips, you can email us at tips@teslarati.com.

Joey has been a journalist covering electric mobility at TESLARATI since August 2019. In his spare time, Joey is playing golf, watching MMA, or cheering on any of his favorite sports teams, including the Baltimore Ravens and Orioles, Miami Heat, Washington Capitals, and Penn State Nittany Lions. You can get in touch with joey at joey@teslarati.com. He is also on X @KlenderJoey. If you're looking for great Tesla accessories, check out shop.teslarati.com

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Elon Musk

SpaceX just filed for the IPO everyone was waiting for

SpaceX filed its public S-1, revealing $18.7 billion in revenue and billions in losses.

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SpaceX-Ax-4-mission-iss-launch-date

SpaceX publicly filed its S-1 registration statement with the Securities and Exchange Commission on May 20, 2026, making its financial details available to the public for the first time ahead of what could be the largest IPO in history.

An S-1 is the formal document a company must submit to the SEC before going public. It includes audited financials, risk factors, business descriptions, and how the company plans to use the money it raises. Companies are required to file one before selling shares to the public, and it must be published at least 15 days before the investor roadshow begins. SpaceX had already submitted a confidential draft to the SEC in April, which allowed regulators to review the filing privately before it went public.

The S-1 reveals that SpaceX generated $18.7 billion in consolidated revenue in 2025, driven largely by its Starlink satellite internet division, which posted $11.4 billion in revenue, growing nearly 50% year over year. Despite that growth, the company lost about $4.9 billion in 2025 and has burned through more than $37 billion since its founding.

SpaceX just forced Verizon, AT&T and T-Mobile to team up for the first time in history

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A significant portion of those losses trace back to xAI, Elon Musk’s artificial intelligence company, which was recently merged into SpaceX. SpaceX directed roughly 60% of its capital spending in 2025 to its AI division, totaling around $20 billion, yet that division lost billions and grew revenue by only about 22%.

SpaceX plans to list its Class A common stock on Nasdaq under the ticker SPCX, with Goldman Sachs, Morgan Stanley, and Bank of America leading the offering. The dual-class share structure means going public will not meaningfully reduce Musk’s control, as Class B shares he holds carry 10 votes per share compared to one vote for public Class A shares.

The company is targeting a raise of around $75 billion at a valuation of roughly $1.75 trillion, which would make it the largest IPO ever. The investor roadshow is reportedly planned for June 5.

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Elon Musk

Tesla ditches India after years of broken promises

Tesla has ditched its plans to build a factory in India after years of failed negotiations.

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Tesla’s long-running effort to establish a manufacturing presence in India is officially over. India’s Minister of Heavy Industries H.D. Kumaraswamy confirmed on May 19, 2026 that Tesla has informed authorities it will not proceed with a manufacturing facility in the country.

Tesla first signaled serious interest in India around 2021, when it began hiring local staff and lobbying the Indian government for lower import tariffs. The ask was straightforward: reduce duties enough for Tesla to test the market with imported vehicles before committing capital to a local factory. India’s position was equally firm, with an ask of Tesla to commit to manufacturing first, then receive tariff relief. Neither side moved, and the talks quietly collapsed.

Tesla to open first India experience center in Mumbai on July 15

India had offered a policy that would reduce import duties from 110% down to 15% on EVs priced above $35,000, provided companies committed at least $500 million toward local manufacturing investment within three years. Tesla declined to participate. The tariff standoff was only part of the problem. Analysts pointed to significant gaps in India’s local supply chain, inadequate industrial infrastructure, and a mismatch between Tesla’s premium pricing and the purchasing power of India’s automotive market as additional factors that made the investment difficult to justify.

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First signs of an unraveling relationship came in April 2024, when Musk abruptly cancelled a planned trip to India where he was set to meet Prime Minister Modi and announce Tesla’s market entry. By July 2024, Fortune reported that Tesla executives had stopped contacting Indian government officials entirely. The government at that point understood Tesla had capital constraints and no plans to invest.

The more fundamental issue is that Tesla’s existing factories are currently operating at approximately 60% capacity, making a commitment to building new manufacturing capacity in a new market difficult to defend to investors. Tesla will continue selling imported Model Y vehicles through its existing showrooms in Mumbai, Delhi, Gurugram, and Bengaluru, but local production is no longer part of the plan.

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Elon Musk

SpaceX just forced Verizon, AT&T and T-Mobile to team up for the first time in history

AT&T, T-Mobile, and Verizon just joined forces for one reason: Starlink is winning.

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Starlink D2D direct to device vs Verizon, AT&T (Concept render by Grok)

America’s three largest wireless carriers, AT&T, T-Mobile, and Verizon, announced on On May 14, 2026 that they had agreed in principle to form a joint venture aimed at pooling their spectrum resources to expand satellite-based direct-to-device (D2D) connectivity across the United States in what can be seen as a direct response to SpaceX’s Starlink initiative. D2D, in plain terms, is technology that lets a standard smartphone connect directly to a satellite in orbit, the same way it connects to a cell tower, with no extra hardware required.

The alliance is widely seen as a means to slow Starlink’s rapid expansion in the satellite internet and mobile markets. SpaceX’s Starlink Mobile service launched commercially in July 2025 through a partnership with T-Mobile, starting with messaging before expanding to broadband data. SpaceX secured access to valuable wireless spectrum through its $17 billion deal with EchoStar, paving the way for significantly faster satellite-to-phone speeds.

The FCC just said ‘No’ to SpaceX for now

SpaceX was not shy about its reaction. SpaceX president and COO Gwynne Shotwell responded on X: “Weeeelllll, I guess Starlink Mobile is doing something right! It’s David and Goliath (X3) all over again — I’m bettin’ on David.” SpaceX’s VP of Satellite Policy David Goldman went further, flagging potential antitrust concerns and asking whether the DOJ would even allow three dominant competitors to coordinate in a market where a new rival is actively entering.

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Financial analysts at LightShed Partners were blunt, saying the announcement showed the three carriers are “nervous,” and pointed to the timing: “You announce an agreement in principle when the point is the announcement, not the deal. The timing, weeks ahead of the SpaceX roadshow, was the point.”

As Teslarati reported, SpaceX’s next generation Starlink V2 satellites will deliver up to 100 times the data density of the current system, with custom silicon and phased array antennas enabling around 20 times the throughput of the first generation. The carriers’ JV, which has no definitive agreement, no financial structure, and no deployment timeline yet, will need to move quickly to matter.

Elon Musk’s SpaceX is targeting a Nasdaq listing as early as June 12, aiming for what would be the largest IPO in history. With Starlink now serving over 9 million subscribers across 155 countries, holding 59 carrier partnerships globally, and now powering Air Force One, the carriers’ joint venture announcement landed at exactly the wrong time to look like anything other than a defensive move.

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