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Tesla’s pilot 4680 battery cell line in CA will support Giga Berlin’s initial ramp

(Credit: Tesla)

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Tesla’s pilot battery cell production line in Fremont, CA may be built in a site that spans less than 200,000 square feet, but it is poised to be one of the world’s largest battery plants by output nonetheless. With an expected annual output of 10 GWh, Tesla’s “Roadrunner” line for its 4680 cells will likely produce enough batteries to support the production of some of the company’s vehicles.

During the electric car maker’s recently-held third-quarter earnings call, Tesla Senior Vice President of Powertrain and Energy Engineering Drew Baglino provided some details about how the batteries produced at the Fremont pilot line would be used. When asked if Gigafactory Berlin will start its cell production activities at the same time as its Model Y ramp, the executive noted that the 4680 batteries from the Fremont site could be used to support the German factory’s initial operations.

“We will incorporate 4680 design solutions into many applications in time across both energy and vehicle and we can use our pilot production facility in Fremont to support the new factory in Berlin as it ramps,” Baglino remarked.

Tesla’s pilot line for its custom 4680 cells is set up in the company’s Kato Road facility, located very close to the Fremont Factory. During Battery Day, Musk and Baglino emphasized that the facility is still a work in progress, though it has the capability to produce an estimated 10 GWh worth of 4680 batteries when it’s fully operational. With such an output, Tesla’s pilot battery cell line would produce roughly a quarter of Gigafactory Nevada’s production today.

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That’s very impressive, especially considering that the Kato Road facility only covers 184,880 sq ft, a fraction of Gigafactory Nevada’s current size. This, if any, provides a pretty clear hint at just how far Tesla has gone with its battery production efficiencies. Considering that a rather compact pilot line is already capable of producing 10 GWh worth of batteries per year, a Gigafactory-sized site would certainly be able to produce far more.

Elon Musk has mentioned that Gigafactory Berlin will be getting its own battery cell production facility. That being said, the company does intend to begin Model Y production by next year. With this in mind, exporting 4680 cells to the facility for the all-electric crossover does appear to be a sound strategy, at least until Giga Berlin could start producing its own batteries onsite.

The Made-in-Germany Model Y is expected to be built with several new innovations, such as single-piece casts and a new paint shop. With the all-electric crossover now expected to receive 4680 cells from Tesla’s pilot battery production line as well, it is becoming more and more evident that Giga Berlin’s Model Y will definitively be a cut above its competition.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Elon Musk’s Starbase, TX included in $84.6 million coastal funding round

The funds mark another step in the state’s ongoing beach restoration and resilience efforts along the Gulf Coast.

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Credit: SpaceX/X

Elon Musk’s Starbase, Texas has been included in an $84.6 million coastal funding round announced by the Texas General Land Office (GLO). The funds mark another step in the state’s ongoing beach restoration and resilience efforts along the Gulf Coast.

Texas Land Commissioner Dawn Buckingham confirmed that 14 coastal counties will receive funding through the Coastal Management Program (CMP) Grant Cycle 31 and Coastal Erosion Planning and Response Act (CEPRA) program Cycle 14. Among the Brownsville-area recipients listed was the City of Starbase, which is home to SpaceX’s Starship factory.

“As someone who spent more than a decade living on the Texas coast, ensuring our communities, wildlife, and their habitats are safe and thriving is of utmost importance. I am honored to bring this much-needed funding to our coastal communities for these beneficial projects,” Commissioner Buckingham said in a press release

“By dedicating this crucial assistance to these impactful projects, the GLO is ensuring our Texas coast will continue to thrive and remain resilient for generations to come.”

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The official Starbase account acknowledged the support in a post on X, writing: “Coastal resilience takes teamwork. We appreciate @TXGLO and Commissioner Dawn Buckingham for their continued support of beach restoration projects in Starbase.”

The funding will support a range of coastal initiatives, including beach nourishment, dune restoration, shoreline stabilization, habitat restoration, and water quality improvements.

CMP projects are backed by funding from the National Oceanic and Atmospheric Administration and the Gulf of Mexico Energy Security Act, alongside local partner matches. CEPRA projects focus specifically on reducing coastal erosion and are funded through allocations from the Texas Legislature, the Texas Hotel Occupancy Tax, and GOMESA.

Checks were presented in Corpus Christi and Brownsville to counties, municipalities, universities, and conservation groups. In addition to Starbase, Brownsville-area recipients included Cameron County, the City of South Padre Island, Willacy County, and the Willacy County Navigation District.

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The Boring Company wins key approval for Nashville Music City Loop

The approval allows The Boring Company to use state-owned right-of-way along Tennessee’s highway system.

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the boring company's vegas loop entrance
(Credit: Sam Morris, LVCVA/Las Vegas News Bureau)

Tennessee Gov. Bill Lee announced that the Tennessee Department of Transportation (TDOT) and the Federal Highway Administration (FHWA) have jointly approved The Boring Company’s lease application and enhanced grading permit for the Music City Loop.

The approval allows The Boring Company to use state-owned right-of-way along Tennessee’s highway system, clearing a key hurdle for the privately funded tunnel project that aims to connect downtown Nashville to Nashville International Airport in approximately eight minutes, the Office of the TN Governor wrote in a press release.

“Tennessee continues to lead the nation in finding innovative solutions to accommodate growth, and in partnership with The Boring Company, we are exploring possibilities we couldn’t achieve on our own,” Gov. Lee said in a statement.

“The Boring Company is grateful for the leadership and hard work of federal, state, and local agencies in bringing this project to a shovel-ready point,” The Boring Company President Steve Davis said. “Music City Loop will be a safe, fast, and fun public transportation system, and we are excited to build it in Nashville.”

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With lease and permitting approvals secured, The Boring Company will move forward with the Loop system’s construction immediately. The first segment of the Loop system is expected to be operational by the end of the year.

The Music City Loop will run beneath state-owned roadways and is designed to connect downtown Nashville to the airport, as well as lower Broadway to West End. The project will be 100% privately funded.

“The Music City Loop shows what’s possible when we leverage private-sector innovation and American ingenuity to solve transportation challenges,” said U.S. Transportation Secretary Sean Duffy. “TDOT’s lease approval will help advance this ambitious project as we work to reduce congestion and make travel more seamless for the American people.”

The Boring Company described the Loop as an all-electric, zero-emissions, high-speed underground transportation system that will meet or exceed safety standards. The Vegas Loop, for one, earned a 99.57% safety and security rating from the DHS and the TSA, the highest score ever awarded to any transportation system.

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Tesla China extends its 7-year financing promotion once more

The move marks Tesla’s second extension of the program this year.

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Credit: Tesla Asia/X

Tesla has extended its seven-year ultra-low-interest and five-year interest-free financing programs in China once more, pushing the offers through March 31, the end of the first quarter.

The move marks Tesla’s second extension of the program this year. The financing plan was first introduced on January 6 as a strategy aimed at offsetting higher ownership costs ahead of China’s planned 5% NEV purchase tax in 2026.

The original promotion was set to expire at the end of January but was extended to the end of February. This has now been extended again through March.

The repeated extensions reflect growing competitive pressure. Tesla’s 2025 retail sales in China totaled 625,698 units, representing a 4.78% year-on-year decline, as per data compiled by CNEV Post. That being said, this decline is partly caused by the Model Y’s changeover to its new variant in Q1 2025, which resulted in lower sales during the quarter. 

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In early 2026, the Model Y also lost its position as China’s top-selling EV in January to Xiaomi’s YU7, though this was also a month when Tesla primarily exported vehicles to foreign territories, which pushed local delivery numbers lower.

During January 2026, Tesla China exported 50,644 vehicles, roughly 1.7 times higher than the same month a year ago and more than 15 times higher than December’s level.

Tesla’s financing push has not gone unanswered. BYD this week introduced its own seven-year low-interest plan across its Ocean lineup and Fang Cheng Bao sub-brand, also valid through March 31. Other competitors including NIO, XPeng, Li Auto, and Geely Auto have already rolled out extended-term loan programs as well.

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