Energy
Tesla battery partner Panasonic debunks rumors about alleged Gigafactory 1 conflicts
Panasonic Corporation President Kazuhiro Tsuga effectively debunked speculations alleging that the Japanese company’s relationship with American electric car maker Tesla is on the rocks. During a recent Q&A session, Tsuga explained the dynamic between Tesla and Panasonic, as well as his insights about the idea of the electric car maker utilizing another battery supplier for Gigafactory 3.
The relationship between Tesla and Panasonic was thrown into question following a report from the Nikkei Asian Review last month, which alleged that the Japanese company was freezing its investments in Gigafactory 1. Tesla responded to the report, stating that there is far more output to be gained by improving the existing production lines in the Nevada-based factory. Elon Musk took to Twitter as well, stating that Panasonic’s lines at Gigafactory 1 are only operating at ~24 GWh per year despite having a theoretical capacity of 35 GWh.
Musk’s tweets were promptly interpreted as a “public battle” with Panasonic. Craig Irwin of Roth Capital Partners noted that “Tesla and Panasonic need couples counseling ASAP,” adding that “this is looking like a much more acrimonious relationship.” Tsuga, for his part, mentioned that Tesla and Panasonic maintain a “very good relationship between ourselves” during the Q&A session. Explaining further, the Panasonic President pointed out that the two companies have always been candid with each other, especially when it comes to investments in facilities such as Gigafactory 1.
“(In) the earlier session with the media, there was a question as to (whether) we have (a) bad relationship, (or if) we’re not getting along with Tesla. Well, we are making sure that we have a partnership relationship, not a supplier relationship. And since we are partners, we are very frank and candid and honest to each other. So on this battery business, as for the investment facilities — for the facilities that we have invested, can we maintain the battery operation with the orders coming in? From Tesla’s point of view, with the batteries being supplied, they can manufacture their vehicles on a full capacity basis.
“Unless that is established, this would not be a win-win relationship. In the past, what hurt us (was) that we were told that ‘This is the capacity you’ll need,’ but we couldn’t sell that much batteries. That’s the worst case. And that sense, Tesla is purchasing everything that we manufacture. And they have not just the electric vehicles but they do have the storage batteries as well, and they are asking for the capacity increase all the time. And therefore, we have capacity but not being produced. That situation is not envisioned for Gigafactory for now. So I think we have a very good relationship between ourselves,” Tsuga said.
Other concerns that were brought forward on the heels of the Nikkei report were Panasonic’s speculated issues about Tesla’s potential local battery partner in Gigafactory 3. Tesla is speculated to utilize a local battery supplier for the Shanghai-based electric car production facility, a strategy that analysts such as Cairn Energy Research Advisors managing director Sam Jaffe believed would irk Panasonic. “Tesla is starting to flirt with other battery makers in China, and Panasonic doesn’t like that,” Jaffe said in a statement to the Los Angeles Times.
Panasonic President Tsuga expressed a completely different sentiment about the topic, noting that it makes sense for Tesla to adopt a multiple supplier model for Gigafactory 3. “Now because of what happens in China, Tesla is considering a multiple supplier structure, which makes sense for Tesla maybe given the very special nature of doing business in China, and maybe they need to have that structure so as to be approved by China authority. So on the part of Tesla, they might prefer — they might start considering getting multiple suppliers, but that doesn’t mean that our relationship is being hurt and is being unstable, no. We continue to have very solid, very strong relationship with Tesla,” Tsuga said.
Panasonic and Tesla have been in a close working relationship for years. The Japanese company currently produces the battery cells for Tesla’s vehicles, from the 18650 cells used in the Model S and Model X to the 2170 cells utilized in the Model 3. Considering the recent statements of the Panasonic President, as well as Tesla’s ramp of its existing and upcoming products, it appears that the two companies’ partnership will likely remain strong for some time to come.
Energy
Tesla Lathrop Megafactory celebrates massive Megapack battery milestone
The Tesla Megapack is the backbone of Tesla Energy’s battery deployments.
The Tesla Lathrop Megafactory recently achieved a new milestone. As per the official Tesla Megapack account on X, the Lathrop Megafactory has produced its 15,000th Megapack 2 XL battery.
15,000 Megapack Batteries
Tesla celebrated the milestone with a photo of the Lathrop Megafactory team posing with a freshly produced Megapack battery. To commemorate the event, the team held balloons that spelled out “15,000” as they posed for the photo.
The Tesla Megapack is the backbone of Tesla Energy’s battery deployments. Designed for grid-scale applications, each Megapack offers 3.9 MWh of energy and 1.9 MW of power. The battery is extremely scalable, making it perfect for massive energy storage projects.
More Megafactories
The Lathrop Megafactory is Tesla’s first dedicated facility for its flagship battery storage system. It currently stands as the largest utility-scale battery factory in North America. The facility is capable of producing 10,000 Megapack batteries every year, equal to 40 GWh of clean energy storage.
Thanks to the success of the Megapack, Tesla has expanded its energy business by building and launching the Shanghai Megafactory, which is also expected to produce 40 GWh of energy storage per year. The ramp of the Shanghai Megafactory is quite impressive, with Tesla noting in its Q1 2025 Update Letter that the Shanghai Megafactory managed to produce over 100 Megapack batteries in the first quarter alone.
Tesla Energy’s Potential
During the first quarter earnings call, CEO Elon Musk stated that the Megapack is extremely valuable to the energy industry.
“The Megapack enables utility companies to output far more total energy than would otherwise be the case… This is a massive unlock on total energy output of any given grid over the course of a year. And utility companies are beginning to realize this and are buying in our Megapacks at scale,” Musk said.
Energy
Tesla Megapacks powers the xAI Colossus supercomputer
Tesla Megapacks step in to stabilize xAI’s Colossus supercomputer, replacing natural gas turbines. Musk’s ventures keep intertwining.
Tesla Megapack batteries will power the xAI Colossus supercomputer in Memphis to ensure power stability. The collaboration between Tesla and xAI highlights the synergy among Elon Musk’s ventures.
The artificial intelligence startup has integrated Tesla Megapacks to manage outages and demand surges, bolstering the facility’s reliability. The Greater Memphis Chamber announced that Colossus, recently connected to a new 150-megawatt electric substation, is completing its first construction phase. This transition addresses criticism from environmental justice groups over the initial use of natural gas turbines.
“The temporary natural gas turbines that were being used to power the Phase I GPUs prior to grid connection are now being demobilized and will be removed from the site over the next two months.
“About half of the operating turbines will remain operating to power Phase II GPUs of xAI until a second substation (#22) already in construction is completed and connected to the electric grid, which is planned for the Fall of 2025, at which time the remaining turbines will be relegated to a backup power role,” the Chamber stated.
xAI’s rapid development of Colossus reflects its ambition to advance AI capabilities, but the project has faced scrutiny for environmental impacts. The shift to Megapacks and grid power aims to mitigate these concerns while ensuring operational continuity.
The Megapack deployment underscores the collaboration among Musk’s companies, including Tesla, SpaceX, Neuralink, and The Boring Company. Tesla appears to be the common link between all of Musk’s companies. For example, The Boring Company built a tunnel in Giga, Texas. In addition, Musk has hinted at a potential collaboration between the Tesla Optimus Bot and Neuralink. And from January 2024 to February 2025, xAI invested $230 million in Megapacks, per a Tesla filing.
Tesla Energy reported a 156% year-over-year increase in Q1 2025, deploying 10.4 GWh of storage products, including Megapacks and Powerwalls. Tesla’s plans for a new Megapack factory in Waller County, Texas, which is expected to create 1,500 jobs in the area, further signal its commitment to scaling energy solutions.
As xAI leverages Tesla’s Megapacks to power Colossus, the integration showcases Musk’s interconnected business ecosystem. The supercomputer’s enhanced stability positions xAI to drive AI innovation, while Tesla’s energy solutions gain prominence, setting the stage for broader technological and economic impacts.
Energy
Tesla Energy celebrates one decade of sustainability
Tesla Energy has gone far since its early days, and it is now becoming a progressively bigger part of the company.
Tesla Energy recently celebrated its 10th anniversary with a dedicated video showcasing several of its milestones over the past decade.
Tesla Energy has gone far since its early days, and it is now becoming a progressively bigger part of the company.
Tesla Energy Early Days
When Elon Musk launched Tesla Energy in 2015, he noted that the business is a fundamental transformation of how the world works. To start, Tesla Energy offered the Powerwall, a 7 kWh/10 kWh home battery system, and the Powerpack, a grid-capable 100 kWh battery block that is designed for scalability. A few days after the products’ launch, Musk noted that Tesla had received 38,000 reservations for the Powerwall and 2,500 reservations for the Powerpack.
Tesla Energy’s beginnings would herald its quiet growth, with the company later announcing products like the Solar Roof tile, which is yet to be ramped, and the successor to the Powerwall, the 13.5 kWh Powerwall 2. In recent years, Tesla Energy also launched its Powerwall 3 home battery and the massive Megapack, a 3.9 MWh monster of a battery unit that has become the backbone for energy storage systems across the globe.
Key Milestones
As noted by Tesla Energy in its recent video, it has now established facilities that allow the company to manufacture 20,000 units of the Megapack every year, which should help grow the 23 GWh worth of Megapacks that have already been deployed globally.
The Powerwall remains a desirable home battery as well, with more than 850,000 units installed worldwide. These translate to 12 GWh of residential entry storage delivered to date. Just like the Megapack, Tesla is also ramping its production of the Powerwall, allowing the division to grow even more.
Tesla Energy’s Role
While Tesla Energy does not catch as much headlines as the company’s electric vehicle businesses, its contributions to the company’s bottom line have been growing. In the first quarter of 2025 alone, Tesla Energy deployed 10.4 GWh of energy storage products. Powerwall deployments also crossed 1 GWh in one quarter for the first time. As per Tesla in its Q1 2025 Update Letter, the gross margin for the Energy division has improved sequentially as well.
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