Investor's Corner
Tesla Motors’ Residential Battery Pack, Lean on Details
Energy storage and Tesla Motors’ residential battery pack has been trending over the last couple of days since it was announced last week during the company’s conference call. In typical Musk fashion, the conference call reference was lean on details and provides the carrot for financial analysts to overlook it’s miss on revenue and earnings.

Tesla battery technology integrated into SolarCity residential solar system. (Image credit: Solar City)
The assumption is this battery pack production will be able to store energy from your solar panels and electric vehicle owners will be able to use that electricity to directly charge their cars.
This is an interesting play from Musk and direction for Tesla Motors due to the fact that residential battery storage doesn’t exist at this point—some pilots have been underway in California via Tesla. Some critics are saying Tesla may be getting sidetracked and would benefit from a more pragmatic CEO (think they said the same thing about Steve Jobs in early 80s).
They have a point. I write for a manufacturing software magazine, called Automation World, and this audience seems to be ideal market for battery storage, if the return on investment is right. However, while researching an upcoming feature article on energy management for manufacturers, plant floor production is just starting to focus on managing energy for bottom-line savings. Battery storage isn’t in the picture, yet—though commercial buildings might be easier to implement than manufacturers at the beginning.
So is Musk’s aim correct? Is residential battery storage ready?
Battery to power your home from @TeslaMotors – very appealing after going 6 days without power after Hurricane Sandy. http://t.co/QyIWRG8pfL
— Freyja Balmer (@bettyrocker) February 12, 2015
One critic, Jigar Shah, president and co-founder, Generate Capital, believes the solar and battery storage market's first push would be for commercial buildings or manufacturers, but not necessarily with residential.
On a recent Energy Gang podcast, Shah says,"You have to have a market for residential storage, by which to bid that capacity into the market like intelligent generation does and get paid for it. So if you decide to have 24 hours (or longer) of battery storage, then it’s not a dead asset sitting there that only gets used twice a year.
Again, Shah is talking about a lithium battery battery pack linked with solar. So what is the vision from Musk and JB Straubel?
From the conference call comments, Tesla said the design is finished. Musk says,
"We’re going to unveil some of the Tesla home battery consumer battery that will be for you using and people’s houses or businesses, fairly soon. We have the design done and it should start going into production probably about six months or so.”
So not much at this point and Musk once had hoped to leverage "used battery packs" as part of a greener energy storage solution for businesses or homes.
However, Tesla’s director of powertrain business development, Mateo Jaramillo, on the same podcast, says,“So will a used EV battery in seven or eight years be cheaper, more cost-effective to integrate into whatever application you’re trying to get into than a brand new battery in that year, says Jarmamillo. “Right now, the answer doesn’t look like to be yes.”
RELATED: [Podcast] Tesla’s Battery Storage Strategy
BMW is also starting a battery storage pilot program in California with Pacific, Gas and Electric, which we announced last month —Tesla and BMW Battery Packs to the Rescue?). Tesla has also said they are in talks with utilities and they are not enemies in this market play.
So there’s something here and it seems like Musk is porting over his Model S plan: create a market, create buzz and hope supporting market mechanisms will sprout up.
Jigar Shah makes a good point that utilities need to have real-time analytics and a communication infrastructure to provide energy pricing signals quickly to customers. Shah sees this support needed to help residential storage to make money and even “pool” their energy with other battery systems and sell it back to the grid.
Just like last year with the gigafactory, Tesla has teased a product with to the clean energy and business crowd. The wait won't be as long as the gigafactory in 2014, Musk said via the conference call last week that "a product unveiling is probably in the next month or two.”
We're ready PT Barnum/Nikola Tesla.
Elon Musk
Tesla Cybercabs narrowly miss deadly Amazon cargo plane crash
An Amazon cargo plane crash near Miami’s airport stopped feet from dozens of Tesla Cybercabs.
An Amazon Prime Air Boeing 767 cargo jet overran the runway at Miami International Airport on Sunday afternoon, killing five people and injuring five more. The jet, operated by North Carolina based carrier 21 Air as Flight 7598, touched down around 2 p.m. after arriving from San Juan, Puerto Rico, then crossed the airport perimeter, plowed across NW 67th Avenue and struck multiple vehicles before catching fire, according to the Associated Press.
Photos and video from the scene show the aircraft’s nose stopped within meters of a fenced staging lot holding dozens of gold painted Tesla Cybercabs, the steering wheel free robotaxi Tesla began putting on public roads in Austin last week. Miami-Dade Fire Rescue has confirmed the plane struck “multiple vehicles” but has not said whether any Cybercabs were among them, and neither Tesla nor airport officials have addressed the fleet directly.
The Cybercabs had not yet entered commercial service in Miami. Tesla’s existing Robotaxi operation there runs on modified Model Y vehicles and has been unsupervised since Ashok Elluswamy confirmed the detail on X in July.
Footage of the plane crash from earlier today | #ONLYinDADE pic.twitter.com/iGoOtnd6cD
— ONLY in DADE (@ONLYinDADE) September 6, 2026
Elon Musk offered the briefest of reactions. Replying to a Zero Hedge post about the Cybercabs sitting so close to the wreckage, he wrote a single word: “Weird.” He has not commented further, and Tesla has not issued a statement.
The timing puts Tesla’s newest vehicle near an unrelated but highly visible tragedy just days after its Austin debut, a launch that had already drawn scrutiny from federal regulators. The National Highway Traffic Safety Administration opened an audit how Tesla certified the Cybercab as compliant with federal vehicle safety standards, a process Teslarati covered after the vehicle’s September 3 launch event. That inquiry concerns the car’s lack of a steering wheel and pedals, not the Miami crash.
Investigators from the FAA and NTSB are focused on the plane, not the parking lot beside it. Flight data reviewed by outlets including Simple Flying show the 767 touched down around 170 knots, well above the 135 to 140 knot range typical for the aircraft, though investigators have not determined a cause. Amazon said it is working with authorities and that its priority is the safety of everyone affected.
Whether any Cybercabs were damaged, and what Tesla plans for the fleet parked near one of the country’s busiest airports, remain open questions.
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Tesla Cybercab is coming to Asia this month as US service officially begins
Tesla Asia says Cybercab will be on display in Hong Kong, Tokyo, Beijing and Shanghai this month.
Tesla’s Cybercab is heading to Asia. The official Tesla Asia account posted on X Thursday, inviting Cybercab fans to “Come experience the future of autonomy in Hong Kong, Tokyo, Beijing & Shanghai.” The post went up within hours of Tesla’s own Cybercab milestone in Texas, where the company said Thursday it had begun offering rides in across Austin.
Exact dates and venues for the Asia tour haven’t been released yet, though Tesla Hong Kong replied to the announcement with “Cybercab will be on display in Hong Kong soon,” while Tesla Japan’s response pointed fans to a sign up page for updates. Neither post mentions test rides or a service area, and nothing so far suggests Tesla is launching Robotaxi operations in any of the four cities. Based on how Tesla has run past Cybercab tours, in Europe in late 2024 and at US shopping centers that same December, the Asia stops are almost certainly static displays at Tesla stores or public venues as a means to stimulate buzz for its future driverless ride-hailing service in the big cities.
Cybercab will be on display in Asia this month!
Come experience the future of autonomy in Hong Kong, Tokyo, Beijing & Shanghai. pic.twitter.com/wGmmEastfX— Tesla Asia (@Tesla_Asia) September 4, 2026
The timing lines up with Tesla’s only prior Cybercab appearance in the region, a booth at the China International Import Expo in Shanghai last November, which Teslarati covered at the time. At that event, Tesla’s regional general manager for Shanghai framed the car as evidence of the company’s broader mission, a message Tesla has since formalized in its Master Plan Part IV, which states that “autonomous vehicles have the capacity to dramatically improve the affordability, availability and safety of transportation while reducing pollution, particularly in our increasingly dense global cities.” The same document is where Tesla lays out its “sustainable abundance” framing for Cybercab and Optimus alike, describing the two as the hardware behind an AI driven push to cut the cost of transportation and labor at scale.
Whether Cybercab actually operates as a robotaxi anywhere in Asia remains an open question, considering China has already pushed an autonomous ride-hailing market that’s run on homegrown players like Baidu’s Apollo Go and Pony AI. For now, the four city tour reads as a marketing push timed to Austin’s momentum.
Elon Musk
OpenAI cites distrust of SpaceX in decision to drop Cursor partnership
OpenAI will cut SpaceX-owned Cursor’s model access in November, citing Musk’s history of broken contracts.
OpenAI, the company behind ChatGPT, announced late Friday that it is ending its partnership with Cursor, cutting off the coding tool’s access to its models on November 12. The move comes two weeks after SpaceX completed its $60 billion acquisition of Cursor’s parent company, Anysphere, folding the popular AI coding assistant into Elon Musk’s growing SpaceXAI division.
In a post on its website, OpenAI said the decision came down to trust, not technology. “We cannot be confident that SpaceX will use our technology within our terms of service, based on our experience with Elon Musk’s companies violating contracts,” the company wrote. OpenAI pointed to two specific incidents: X, now part of SpaceX, allegedly breaking the terms of an existing OpenAI contract after Musk bought Twitter.
That lawsuit is the backdrop for all of this. Musk cofounded OpenAI in 2015, left the board in 2018, and sued Sam Altman and Greg Brockman in 2024, arguing they abandoned the company’s nonprofit mission for profit. A federal jury sided with OpenAI in May, finding Musk waited too long to sue rather than ruling on the merits of his claims. Musk said at the time he would appeal to the Ninth Circuit, calling the outcome a “calendar technicality” rather than a real judgment.
SpaceX’s interest in Cursor predates that verdict by weeks. The company first struck a deal with Cursor in April, securing an option to acquire it for $60 billion or pay $10 billion for joint development work instead. As Teslarati reported at the time, the logic was straightforward: Cursor was paying retail prices to Anthropic and OpenAI, two of its most direct competitors, every time a developer used its product, while SpaceX had idle capacity on its Colossus supercomputer, roughly the equivalent of a million Nvidia H100 GPUs, that Cursor could use to train its own models instead. SpaceX exercised the option in June, days after its own IPO, and the deal closed in mid-August.
Once it closed, Musk moved fast. On an all-hands call with more than 1,000 Cursor employees, he reportedly told staff that SpaceXAI’s Grok was playing catchup in the AI race, unlike Tesla and SpaceX in their own markets, and singled out Anthropic as the company to catch. Cursor CEO Michael Truell now reports directly to Musk inside SpaceXAI.
Losing OpenAI’s models leaves Cursor leaning harder on Anthropic’s Claude, which has its own compute agreement with SpaceX, and on Cursor’s in-house Composer model, the one SpaceX’s compute was supposed to accelerate in the first place. OpenAI framed the November deadline as maximum notice under its contract, and said it wants to “go above and beyond” to help developers through the transition. Whether Anthropic makes the same call is now the open question in AI coding.
