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Tesla Solar Roof is becoming a stealthy killer, and no one is standing in its way
Tesla executives like CEO Elon Musk may emphasize that the company’s Energy business is just as important as its electric vehicle division, there is little doubt that stationary batteries and solar products are just not as sexy or exciting as, say, all-electric supercars, futuristic pickups, or Full Self-Driving software. Yet as Tesla Energy hits its stride, it is becoming evident that some of the company’s products like the Solar Roof could very well develop into stealthy disruptors on their own.
Tesla Energy’s flagship solar product is the Solar Roof, which was initially unveiled in 2016. Since then, the attractive solar shingles have not really seen a serious ramp, at least until now. Over the following years since its debut, Tesla focused on optimizing and improving the Solar Roof, and the result of these initiatives was the V3 tiles, which were rolled out last year. Tesla’s Solar Roof installations have been steadily ramping then, but just like the company’s energy division, its growth was mostly in the background.
Prior to the third-quarter earnings call, Tesla Energy made headlines after roofing company Weddle and Sons Roofing announced that it was able to complete a full Solar Roof installation in just four days. The project was no joke either, as the system was comprised of 15 kW of Solar Roof tiles that covered about 4,000 sq.ft. (about 372 sq.m). This was a milestone for the company, but as noted by Tesla in its Q3 2020 Update Letter, this installation was not even the fastest to date.
Tesla revealed in its third-quarter Update Letter that it has been able to complete a full Solar Roof installation in just 1.5 days. The company did not indicate the size of the system, though it did provide images depicting the installation’s progress. This update, together with the recent report from Weddle and Sons Roofing, shows that steadily, Tesla’s Solar Roof tiles are becoming faster and easier to install.
Tesla Energy’s growth in the third quarter was incredibly impressive, with the company deploying 57 MW of solar, a 111% growth from the second quarter. The company also announced that 759 MWh worth of battery storage was deployed, an 81% increase from Q2 2020. These milestones tend to be pushed aside by the company’s FSD and EV developments, but if Tesla Energy continues at this pace, it would only be a matter of time before the company’s solar and battery storage systems end up becoming a force that will be incredibly difficult to ignore.
Interestingly enough, the Tesla Solar Roof does not really have a lot of competition in the residential solar market in the United States. Granted, products like the SunTegra Solar Shingles could provide some competition, but the overall lineup of rivals for the electric car maker’s V3 tiles are relatively few. With this in mind, the potential path to dominance for the Tesla Solar Roof seems to be mostly clear. Tesla just has to produce them at volumes that meet demand.
Tesla’s reach into the residential market has actually been growing. EnergySage’s eleventh semiannual Solar Marketplace Intel Report, for one, concluded that the Tesla Powerwall 2 is pretty much dominating the US residential market for stationary storage. The competition, comprised of battery storage units from companies like LG Chem, lie far behind, with the Powerwall dominating about half of the quotes given in EnergySage’s Marketplace.
Elon Musk spoke about the Solar Roof’s potential in Tesla’s recently-held earnings call. Just like before, Musk was optimistic about the shingles, though this time around, the CEO seemed to be more certain about its upcoming disruption. Musk even remarked that the Solar Roof’s status as a “killer product” will become evident next year.
“When you look around the neighborhood in the future, decade from now, what do you want? What products are going to make your life better? What future do you want? And I think a future where we’ve got beautiful roofs generating energy that are tough and resilient and better in every way than a regular roof and alive with energy, that’s the future we want. Solar Roof is a killer product. This will become obvious next year,” he said.
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Tesla’s AI Chief just hinted at something big for FSD v14 lite owners
Tesla’s AI chief suggests the newest FSD v14 Lite build may finally go wide release.
Tesla’s head of AI, Ashok Elluswamy, noted on Sunday that the newest FSD v14 Lite build rolling out to Hardware 3 cars is likely the version that goes to wide release, the strongest signal yet that Tesla is near to closing out an early access phase that Hardware 3 owners have waited more than a year for.
Elluswamy made the comment in response to an extensive review from Tesla owner Zack, known on X as @BLKMDL3, who tested software version 2026.20.6.10 and detailed the changes in a lengthy post. “FSD v14 Lite (for Tesla AI3 hardware vehicles) review.
The update restarts a rollout that had stalled after its initial release. Tesla began pushing FSD v14 Lite to Hardware 3 early access drivers on June 29, bringing driving behavior learned on the newer Hardware 4 computer down to the more limited chip that has powered Tesla vehicles built between 2019 and early 2023. That release, as we covered in detail, gave roughly 4 million HW3 vehicles their first meaningful update since being frozen on version 12.6 in early 2025.
Tesla Full Self-Driving v14 ‘Lite’ Release Notes: new capabilities and features
The latest build adds features that bring Hardware 3 closer in line with what Hardware 4 owners already have. FSD can now start directly from park without a brake pedal confirmation, a change Zack called a small but meaningful quality of life improvement. The interface also picks up the blue “P” park icon, approaching destination alerts, and a dedicated Self-Driving app with streak tracking, all details previously exclusive to the AI4 branch of v14, as outlined in Tesla’s original release notes.
The stakes around Hardware 3 go beyond software polish. Tesla sold the Full Self-Driving package for years on the promise that every vehicle equipped with it had the hardware needed to eventually drive itself without supervision. That promise broke down during Tesla’s Q1 2026 earnings call, when Musk acknowledged HW3 cars could not run unsupervised FSD, prompting Tesla to offer trade-in discounts and hardware retrofits alongside the Lite software track.
Tesla confirmed HW3 can’t do Unsupervised FSD but there’s more to the story
Tesla has continued to frame v14 Lite as the primary path forward for the HW3 fleet, telling owners in April that international markets would follow the U.S. rollout once regulatory approvals came through. For now, HW3 owners in the early access group are the only ones running the new build. A broader rollout would mark the second major software delivery to the legacy fleet since Tesla first released FSD v14 to Hardware 4 vehicles, and the first sign since June that the Lite program is still moving rather than stuck in early access limbo.
Elon Musk
Elon Musk sends first warning to SpaceX short sellers
In a pointed message on X, Elon Musk warned that firms maintaining significant short positions in SpaceX over time face “very low” survival probability.
The statement comes amid post-IPO volatility for the rocket company, now trading under the ticker $SPCX.
The survival probability of firms who maintain a significant short position in SpaceX over time is very low
— Elon Musk (@elonmusk) July 17, 2026
Five weeks after what was described as the largest IPO in history, the stock had fallen roughly 30% from its peak above $2.6 trillion, briefly surpassing Microsoft and Amazon in market value. Short sellers celebrated gains of about $8.7 billion, but Musk’s reply underscores his long-term conviction.
The warning directly echoes a detailed bullish analysis arguing that Starship’s cost reductions could unlock a multi-trillion-dollar space economy. Projects ranging from solar power beamed from orbit and asteroid mining to orbital data centers and Mars terraforming were projected to create over $100 trillion in new market capitalization.
In this vision, SpaceX acts as the essential infrastructure provider, akin to AWS for cloud computing, capturing monopoly-like revenues from launches, crew transport, and data traffic across a rapidly expanding frontier.
This is far from the first time Musk has targeted short sellers. With Tesla, he has repeatedly framed persistent bears as destined for major losses. In July 2024, Musk declared that once Tesla achieves full autonomy and volume production of Optimus robots, “anyone still holding a short position will be obliterated. Even Gates,” referencing Microsoft co-founder Bill Gates’ reported short bets.
Elon Musk reveals what Tesla stock surge could do to Bill Gates
Earlier, in 2018, he taunted shorts that they had “about three weeks before their short position explodes,” a remark followed by sharp stock gains. Musk has also called short selling “value destroying” and once suggested it “should be illegal,” viewing it as betting against innovation and progress.
Critics often dismiss Musk’s optimism as hype, especially when near-term metrics like quarterly deliveries or stock fluctuations disappoint.
Yet his pattern remains consistent: framing short positions against his companies as fundamentally misjudging exponential technological leaps. For SpaceX shorts, the message is clear: betting against multi-planetary ambitions and the infrastructure monopoly they enable carries existential risk for the firms involved.
As Musk and supporters see it, the space economy’s upside dwarfs Earth-bound valuation models, making today’s dips temporary in a decades-long ascent.
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Tesla reveals first vehicle model to receive Starlink integration
Tesla has evidently revealed which of its vehicle models will be the first to receive Starlink integration: the Cybercab.
Tesla’s Santana Row showroom now has a full-fledged display of the Cybercab, with an extensive bit of information hung around an exhibit that seems to reveal the vehicle’s newest feature: an integrated Starlink antenna that will enable secure and reliable internet access during trips.

Credit: @Starscream_SJC | X
Cybercab is geared toward autonomous ride-hailing for one or two passengers. The production units rolling off the lines at Gigafactory Texas are built without steering wheels or pedals, meaning when public rides begin, passengers will not need to interact with a human being or control the vehicle in any way outside of what appears on the center screen for their entertainment during the ride.
Tesla Santana Row will be reopening tomorrow with a full focus on self-driving. Everything in the showroom is about Robotaxi and Cybercab with stats and information about the technology. The Cybercab on display is the production model. pic.twitter.com/yIUYdOGFOp
— Shaun Cassidy (@Starscream_SJC) July 20, 2026
Along the display, Tesla wrote this message about Cybercab:
“Cybercab is built for autonomy. It has no steering wheel, no side mirrors, and no pedals. It goes where you tell it to go and how you want it to, so you can relax along the way. It is hyper aware and responsive to your surroundings, monitoring other drivers, responding to emergency vehicles, utilizing its expertise in the rarest scenarios to help keep you safe.”
Tesla has been teasing a potential Starlink integration for quite some time now. In December, the company hinted at potential Starlink internet terminal integration within its vehicles in a patent that described a vehicle roof assembly with integrated radio frequency (RF) transparency.
The company wrote in its patent application that a new roof design built with materials that differ from the standard metallic or glass elements used in today’s cars would allow it to integrate modern vehicular technologies, in particular, ones that require radio frequency transmission and reception.
Tesla suggested high-strength polymer blends, like Polycarbonate, Acrylonitrile Butadiene Styrene, or Acrylonitrile Styrene Acrylate.
This is the first time we’ve seen Tesla officially confirm the Starlink integration into the Cybercab. It’s not much of a surprise considering the company’s intention behind the Cybercab, which is to make travel autonomous.
Productivity will now be at a maximum during a work-related commute, while the center screen could be utilized for Netflix or potentially even live TV for those who are heading to dinner or to a fun activity.