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Old EV batteries are being reused as energy storage devices in CA

B2U’s patented, UL-Certified EV Pack Storage (EPS) System enables the use of EV battery packs without reconfiguration in large scale energy storage. Credit: B2U

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Electric vehicles are here to stay, and the subject of what to do with their battery packs once they are no longer suitable for the road remains a key concern among skeptics. A response to these concerns is currently being demonstrated in California by B2U Storage Solutions Inc, a Los Angeles-based startup that’s using second-hand EV batteries as energy storage systems that can support the grid. 

B2U noted that its use of old EV batteries can significantly lower the cost of carbon-free energy storage. The company also noted that so far, it has 25 MWh of storage capacity tied to a solar energy site in Lancaster, California. The battery storage system, which is composed of 1,300 old electric car batteries, is believed to be the first of its kind. 

The system is promising, with B2U CEO Freeman Hall stating that the batteries earned $1 million last year selling power into the wholesale energy market. Hall also estimates that the use of old EV batteries could reduce the costs of grid-scale battery installations by about 40%. So far, B2U’s system uses batteries from old Honda and Nissan electric vehicles, and some are up to eight years old. 

“Second life and re-use helps the overall lifecycle be more energy efficient, given all the efforts that go into making that battery. So you’re getting maximum value out of it,” Hall told Reuters

What’s especially admirable about B2U’s technology is that its solution doesn’t even require old EV batteries to be disassembled or reconfigured. The batteries themselves are connected into a climate-controlled storage pod sized like a shipping container, and they’re used with their existing casings. The batteries are managed through their existing onboard management software as well. 

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Electric vehicle leader Tesla is ramping the production of its energy storage devices like the Megapack, which is also designed to support the grid. In the company’s Q4 and FY 2022 Update Letter, Tesla noted that it was able to deploy 6.5 GWh of energy storage in 2022, the highest it has accomplished to date. But despite this, Tesla cannot usher in sustainability alone, so companies like B2U could provide a well-needed boost that could further accelerate the growth of the energy storage market. 

The Teslarati team would appreciate hearing from you. If you have any tips, contact me at maria@teslarati.com or via Twitter @Writer_01001101.

Maria--aka "M"-- is an experienced writer and book editor. She's written about several topics including health, tech, and politics. As a book editor, she's worked with authors who write Sci-Fi, Romance, and Dark Fantasy. M loves hearing from TESLARATI readers. If you have any tips or article ideas, contact her at maria@teslarati.com or via X, @Writer_01001101.

Elon Musk

Tesla Robotaxis are becoming a common sight on Austin’s public roads

Tesla Robotaxi sightings are becoming much more frequent ahead of its launch planned for this month.

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Credit: @Muzeishen | X

Tesla Robotaxis are becoming a common sight on the public roads of Austin, Texas, as yet another test mule has been spotted near the company’s target launch date.

Just over a week ago, the first public sighting of a driverless Tesla Robotaxi was reported. The vehicle was an updated version of the Tesla Model Y, which will be the initial model used in the public deployment of the Robotaxi platform.

Throughout the past week, sightings have been more common, as people in Austin have been looking for the unique decal Tesla is placing on car doors to recognize the driverless vehicles (After all, Robotaxis are not as easy to recognize as driverless vehicles without the LIDAR unit on the roof like Waymo).

Yet another sighting of a Robotaxi was shared on social media today, just two days before CEO Elon Musk’s proposed launch date of June 22:

It is easy to tell that there is nobody in the driver’s seat of this vehicle. Tesla is using its white interior on this particular mule, making it incredibly simple to recognize that no human is controlling the car.

Whether Tesla will still meet the June 22nd deadline remains to be seen, but it is no secret that the company is prioritizing safety ahead of offering public rides.

Tesla will initially roll out the Robotaxi platform in Austin, but it has already started the regulatory process in other areas, specifically California.

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The National Highway Traffic Safety Administration (NHTSA) is also helping to streamline the process for companies developing driverless vehicles by giving exemptions to automakers. It will make things much more efficient, benefiting Tesla and other car companies that have similar plans.

Tesla Robotaxi just got a big benefit from the U.S. government

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Elon Musk

Elon Musk teases Tesla Optimus Gen 3 capabilities: ‘So many improvements’

If you thought Optimus Gen 2 was impressive, Tesla might have a surprise for you.

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Credit: Tesla Optimus | X

Elon Musk has teased that huge improvements are coming to Tesla’s Optimus humanoid robot, which is arguably the product that the company is developing with the most potential for everyday use by consumers and valuation increases from a financial perspective.

Optimus is still in the development stages, but Tesla has made great strides in its development over the past several years. It started as a simple idea that was unveiled with a human being in a spandex suit.

Tesla posts Optimus’ most impressive video demonstration yet

Just a few years later, Tesla has developed several humanoid robot prototypes that have made their way to influencers and have lent a helping hand around the company’s manufacturing facilities.

Tesla has already introduced two generations of Optimus, as the most recent release featured a vast number of improvements from the initial version.

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The following is a list of things Tesla improved upon with Optimus Gen 2 compared to Gen 1:

  • Tesla introduced a weight reduction of roughly 22 pounds, improving efficiency and agility
  • Optimus Gen 2 had a walking speed that improved by 30 percent over Gen 1
  • Tesla developed more capable hands that had 22 degrees of freedom, double that of Gen 1. This improved object handling
  • Optimus Gen 2 had a 2-degree-of-freedom neck, as Gen 1’s was fixed
  • Tesla integrated actuators and sensors for better performance. This includes things like foot force/torque sensing, articulated toe sections that are close to human foot geometry for better balance and movement
  • Optimus Gen 2 has 28 degrees of overall freedom, improving flexibility from the first generation
  • Tesla’s Optimus Gen 2 can do more than Gen 1, and has shown improved motor control and precision, doing things like squats, yoga poses, dancing, and even poaching an egg

These changes essentially brought Tesla closer to what will be the Optimus version that makes it to production. The company has plans to start production for the public in 2026, but some units will be manufactured for internal use within its factories as soon as this year. Tesla has said it could scale to 100,000 units or more by next year.

Musk also revealed to Teslarati recently that the company is in the process of building the production line that will bring manufacturing rates of Optimus to that level.

However, there is another design of Optimus coming, and Musk says it will feature “so many improvements”:

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Tesla has said that Optimus will have the capability to perform tedious and time-consuming tasks like folding laundry, babysitting, cooking, walking the dog, and plenty of other things. However, it will be super impressive to see it do things that require true coordination, like threading a needle, for example.

Musk did not hint toward any specific developments that Tesla will aim for with Optimus Gen 3, but the sky is the limit, especially as it will be performing some manufacturing tasks across its factories.

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Elon Musk

Elon Musk slams Bloomberg’s shocking xAI cash burn claims

Musk stated that “Bloomberg is talking nonsense.”

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Credit: xAI/X

Elon Musk has forcefully rejected Bloomberg News’ claims that his artificial intelligence startup, xAI, is hemorrhaging $1 billion monthly. 

In a post on X, Musk stated that “Bloomberg is talking nonsense.” He also acknowledged an X user’s comment that people “really have no idea what’s at stake” with AI.

Bloomberg‘s Allegations and Musk’s Rebuttal

The Bloomberg News report painted a dire picture of xAI’s finances. Citing people reportedly familiar with the matter, the news outlet claimed that xAI burns $1 billion a month as costs for building advanced AI models outpaced the company’s limited revenues. 

Bloomberg alleged that xAI is planning to spend over half of a proposed $9.3 billion fundraising haul in three months, with a projected $13 billion loss in 2025. The report also claimed that of the $14 billion that xAI has raised since 2023, only $4 billion remained by Q1 2025. Even this amount, the news outlet alleged, will be nearly depleted in Q2.

xAI did not comment on Bloomberg‘s claims, though Elon Musk shared his thoughts on the matter on social media platform X. In response to an X user who quoted the publication’s article, Musk noted that “Bloomberg is talking nonsense.” Musk, however, did not provide further details as to why the publication’s report was fallacious.

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xAI’s Bright Horizon

Despite Bloomberg‘s claims, even the publication noted that xAI’s prospects are promising. The company, now merged with X, aims to leverage the platform’s vast data archives for model training, which could reduce costs compared to rivals like OpenAI. Tapping into X also allows xAI to access real-time information from users across the globe. 

xAI’s valuation reportedly soared to $80 billion by Q1 2025, up from $51 billion in 2024. The AI startup has attracted heavyweight investors such as Andreessen Horowitz, Sequoia Capital, and VY Capital so far, and optimistic projections point to profitability possibly being attained by 2027. This would be quite a feat for xAI as OpenAI, the AI startup’s biggest rival, is still looking at 2029 as the year it could become cash flow positive.

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