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
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
SpaceX Starship just nailed something it’s never done before
SpaceX’s Starship flew successfully Friday, landing both stages and deploying its first Starlink V3 satellites.
Starship’s thirteenth test flight delivered exactly what SpaceX needed with a clean liftoff, two successful stage recoveries, and the first real payload the vehicle has ever carried to space. Booster 20 and Ship 40 lifted off at 5:51 p.m. CT from Starbase, and by the time the mission wrapped roughly an hour later, both halves of the rocket had done exactly what they were supposed to do.
Booster 20 separated from Ship 40 a few minutes into the flight and stuck a controlled splashdown in the Gulf of Mexico about six minutes after liftoff. That is a meaningful turnaround from Flight 12 in May, when the booster lost several engines during its boostback burn before a hard water landing attempt.
Starship as seen from Starlink satellites pic.twitter.com/e2hvfmnewh
— Elon Musk (@elonmusk) July 25, 2026
Starship 40’s performance was arguably the bigger win. The vehicle deployed the first 20 operational Starlink V3 satellites Starship has ever carried, then flew a suborbital arc to a landing in the Indian Ocean that SpaceX commentator Dan Huot called the company’s softest splashdown yet. “This is a dream scenario for this team that’s trying to get this heat shield data,” Huot said on the live broadcast, according to Space.com’s live coverage. “I’m a little over the moon right now. Wow. Lucky number 13.”
Unlike the mass simulators SpaceX flew on Flight 12, these were production Starlink V3 satellites, meant to extend solar arrays and antennas and attempt to link with the broader constellation before reentering minutes later. Getting real hardware through a full deploy sequence on only the second flight of the V3 generation keeps Starship on schedule for the payload work NASA is counting on for future Artemis lunar landings.
What an awesome launch, really seems like everything went super well and it was all incredibly smooth.
SpaceX is awesome. Very interested to see how the market will respond on Monday pic.twitter.com/KSHmyBfV55
— TESLARATI (@Teslarati) July 25, 2026
-
— TESLARATI (@Teslarati) July 25, 2026
The flight also arrives at a moment when SpaceX needed a win. SPCX has traded below its $135 IPO price since mid-July, as Teslarati reported when the mission slipped to Friday, and short interest has climbed to roughly a third of the tradable float. A clean flight will not fix a balance sheet, but it does answer the one question SpaceX absolutely needed answered this week: whether the fixes made after the July 16 abort would hold up under real flight conditions. They did, on both stages, on the first try after the redesign.
SpaceX has not set a target date for Flight 14, though the company has said it wants to push toward an orbital attempt on the next mission. After Friday, that goal looks a lot more within reach.
Tesla short sellers won big following the company’s massive fall on Wall Street after it reported subpar Earnings on Wednesday.
Tesla short sellers collected about $4.12 billion in single-day profits on Thursday, according to Bloomberg. Shares fell as much as 15 percent during Thursday’s session. It closed as one of the worst days for Tesla on Wall Street in the past three years.
Investors sold off the stock after Tesla said it would aggressively direct its spending toward AI and its Optimus robot project. The company had record revenues, which were driven by one of the strongest quarters in terms of vehicle deliveries in company history.
However, it missed EPS estimates by reporting just $0.33, a far cry from the $0.53 analysts expected.
S3 Partners reported that about 3 percent of Tesla’s outstanding stock is sold short. Managing Director at S3, Ihor Dusaniwsky, provided the short seller’s potential profit, as well as another figure: shorts have likely had paper gains of $8.92 billion this year, as Tesla shares are down 30 percent in 2026.
-
Tesla (TSLA) Q2 2026 earnings results: miss on EPS, beat on revenue
Tesla has burned short sellers many times in the past, but the company’s latest Earnings Call was a chance for those skeptics to taste some payback. Although the company gave some very transparent information regarding future projects, the rollout of Robotaxi, Optimus, and Semi, many investors took their profits on Thursday.
Notable short sellers like Michael Burry have been transparent about their skepticism around Tesla shares. Burry just revealed three weeks ago that he had opened up a new short on the stock, stating he shorted Tesla shares at $416.22. “Happy it jumped back to this level,” he said in a blog post.
At the time of publication, Tesla shares were down about 3 percent and the stock was trading at $309.92.
Tesla stock (NASDAQ: TSLA) endured one of its sharpest single-day declines in years on July 23, tumbling approximately 14.5 percent and closing near $320 after opening the session around $374. The drop erased more than $140 billion in market value amid heavy trading volume and left the shares at multi-week lows.
The sell-off followed the company’s second-quarter 2026 results, released the previous evening. Tesla reported record revenue of $28.2 billion, up 26 percent year over year, driven by a Q2-record 480,126 vehicle deliveries. Energy storage deployments also rose strongly.
Tesla (TSLA) Q2 2026 earnings results: miss on EPS, beat on revenue
Yet profitability disappointed sharply. Operating income fell 57 percent to $398 million, compressing the operating margin to just 1.4 percent. Non-GAAP earnings per share came in at $0.33, well below the roughly $0.53 analysts had expected. Free cash flow turned negative by $1.1 billion as capital expenditures surged 142 percent to $5.8 billion, largely tied to accelerated spending on artificial intelligence, robotics, and autonomous systems.
The losses on capex were expected, as Tesla said it would be spending heavily in 2026.
Investors also reacted to lingering uncertainty surrounding key product timelines. During the Earnings Call, management reiterated ambitions for Robotaxi deployment and the Optimus humanoid robot, but offered limited new concrete milestones, renewing questions about execution pace that have long accompanied Tesla’s ambitious roadmap.
The magnitude of the decline places it among Tesla’s more severe one-day percentage losses since its 2010 initial public offering. Historically, the two largest single-day drops (split-adjusted) remain September 8, 2020, when shares fell 21.1 percent amid broader market volatility and valuation concerns, and January 13, 2012, with a 19.3 percent plunge during the company’s early growth struggles.
-
Other notable declines include an 18.6 percent drop on March 16, 2020, at the onset of pandemic-related market turmoil. Thursday’s move ranks roughly ninth on the all-time list but stands out as the steepest in more than a year.
Despite the short-term pain, Tesla’s long-term trajectory has repeatedly recovered from such volatility. The latest results underscore both the strength of its core automotive and energy businesses and the near-term costs of heavy investment in next-generation technologies.
Tesla claims supplier is holding Cybertruck production hostage
Tesla Full Self-Driving v14.3.6 review: a rare regression, but some bright spots
