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Elon Musk says SpaceX could fire up first orbital-class Super Heavy booster next week
Update: In response to this article, SpaceX CEO Elon Musk says that the plan is to not only ‘cryoproof’ the first flightworthy Super Heavy – but to static fire the booster and shake down Starship’s brand new orbital launch complex as early as “next week.”
A lot of work would need to be finished – and all of it smoothly – for an orbital launch pad cryoproof and static fire to be possible just a week or less from now but Musk’s response nevertheless provides invaluable context for SpaceX’s near-term plans and confirms that Super Heavy Booster 4 is ready for integrated testing as-is. Further, Musk’s tweet implies – as speculated – that Starbase’s orbital launch complex tank farm is much closer to test-readiness than it might otherwise appear.
For the second time in five weeks, SpaceX has installed a Super Heavy booster – fitted with 29 Raptor engines – on Starship’s nascent ‘orbital launch mount.’
Both Super Heavy Booster 4 (B4) and the launch mount have undergone substantial changes since they last parted ways four weeks ago. SpaceX teams have been laser-focused on installing the vast array of plumbing, wiring, and components required to turn the hulking steel structures into functional launch facilities and the largest flightworthy rocket and both certainly look the part.
Superheavy Booster 4 pic.twitter.com/jQ7RAN1nCK— SPadre (@SpacePadreIsle) September 8, 2021
Unlike Starship, which has an expansive skirt section perfect for stowing away sensitive plumbing and avionics, Super Heavy has an unusually short interstage and no real skirt, meaning that all the extra hardware SpaceX has installed over the last month or so is impossible to hide. Indeed, when Booster 4 rolled out of Starbase’s high bay for the second time on September 8th, the rocket was blanketed by dozens of new valves, thousands of feet of wiring and plumbing, pressure vessels, multiple hydraulic racks, a ‘quick disconnect’ (QD) umbilical panel for interfacing with the launch pad, places for “flight termination system” (FTS) explosive charges to be installed, and much, much more.
Additionally, Super Heavy B4’s second batch of 29 Raptors – installed in late August – also appear to all have outward-facing umbilical panels that will all the booster to receive some level of assistance from ground systems while igniting those engines. It’s unclear what exactly they’ll do but it’s likely that those engine umbilical will connect to high-pressure gas systems on the ground, presumably minimizing the already absurd amount of COPVs and secondary plumbing present on Super Heavy.
However, Super Heavy will still need to be able to reignite anywhere from 1 to 13 of its 29-32 Raptor engines in flight for boostback and landing burns, potentially explaining the eight large pressure vessels and 100+ small, high-pressure gas lines installed on B4’s aft end. Super Heavy also needs to be able to chill, feed, and purge all 29-32 of its Raptor engines, guaranteeing that Starship’s booster plumbing situation was going to be immensely complex no matter the approach SpaceX took.
In addition to Super Heavy B4’s newfound complexity, SpaceX also spent the last four or so weeks outfitting Starbase’s orbital launch mount’ with all the plumbing, power, avionics, and mechanical systems it will need to function as “Stage Zero” of orbital-class, two-stage Starship rockets. SpaceX has installed most of the secondary quick disconnect structures that will connect to and feed each of Super Heavy’s 20 outer Raptor engines. The main Super Heavy quick disconnect device was also installed and a team has been gradually outfitting and connecting the structure to the plumbing, avionics, and power it will provide boosters.
A significant amount of work still remains to connect the orbital launch mount to SpaceX’s incomplete and custom-built orbital tank farm, which will store, supercool, and feed the pad, Super Heavy, and Starship with several thousand metric tons of liquid and gaseous oxygen and methane. It’s difficult to say how close Starbase’s tank farm is to being able to support Starship or Super Heavy testing, which makes it equally unclear what SpaceX’s near-term plans are for Booster 4. It’s possible that the rocket has been reinstalled on the orbital launch mount as a second fit check, perhaps focused on those 20 outer Raptor quick-disconnect mechanisms.
It’s also possible that the tank farm and launch mount plumbing are much closer to completion than expected, meaning that Super Heavy B4 could remain at the orbital pad until it’s completed several crucial cryogenic proof and static fire tests. Of course, short of confirmation from Musk himself, we’ll just have to wait and see.
Tesla is updating Cybertruck owners on its timeline of a massive feature that has yet to ship: Powershare with Powerwall.
Powershare is a bidirectional charging feature exclusive to Cybertruck, which allows the vehicle’s battery to act as a portable power source for homes, appliances, tools, other EVs, and more. It was announced in late 2023 as part of Tesla’s push into vehicle-to-everything energy sharing, and acting as a giant portable charger is the main advantage, as it can provide backup power during outages.
Cybertruck’s Powershare system supports both vehicle-to-load (V2L) and vehicle-to-home (V2H), making it flexible and well-rounded for a variety of applications.
However, even though the feature was promised with Cybertruck, it has yet to be shipped to vehicles. Tesla communicated with owners through email recently regarding Powershare with Powerwall, which essentially has the pickup act as an extended battery.
Powerwall discharge would be prioritized before tapping into the truck’s larger pack.
However, Tesla is still working on getting the feature out to owners, an email said:
“We’re writing to let you know that the Powershare with Powerwall feature is still in development and is now scheduled for release in mid-2026.
This new release date gives us additional time to design and test this feature, ensuring its ability to communicate and optimize energy sharing between your vehicle and many configurations and generations of Powerwall. We are also using this time to develop additional Powershare features that will help us continue to accelerate the world’s transition to sustainable energy.”
Owners have expressed some real disappointment in Tesla’s continuous delays in releasing the feature, as it was expected to be released by late 2024, but now has been pushed back several times to mid-2026, according to the email.
Foundation Series Cybertruck buyers paid extra, expecting the feature to be rolled out with their vehicle upon pickup.
Cybertruck’s Lead Engineer, Wes Morrill, even commented on the holdup:
As a Cybertruck owner who also has Powerwall, I empathize with the disappointed comments.
To their credit, the team has delivered powershare functionality to Cybertruck customers who otherwise have no backup with development of the powershare gateway. As well as those with solar…
— Wes (@wmorrill3) December 12, 2025
He said that “it turned out to be much harder than anticipated to make powershare work seamlessly with existing Powerwalls through existing wall connectors. Two grid-forming devices need to negotiate who will form and who will follow, depending on the state of charge of each, and they need to do this without a network and through multiple generations of hardware, and test and validate this process through rigorous certifications to ensure grid safety.”
It’s nice to see the transparency, but it is justified for some Cybertruck owners to feel like they’ve been bait-and-switched.
Tesla has opened its northernmost Supercharger in Fairbanks, Alaska, with eight V4 stalls located in one of the most frigid cities in the U.S.
Located just 196 miles from the Arctic Circle, Fairbanks’s average temperature for the week was around -12 degrees Fahrenheit. However, there are plenty of Tesla owners in Alaska who have been waiting for more charging options out in public.
There are only 36 total Supercharger stalls in Alaska, despite being the largest state in the U.S.
Eight Superchargers were added to Fairbanks, which will eventually be a 48-stall station. Tesla announced its activation today:
North America’s northernmost Supercharger Fairbanks, AK (8 stalls) opened to public. https://t.co/M4l04DZ6B5 pic.twitter.com/zyL6bDuA93
— Tesla Charging (@TeslaCharging) December 12, 2025
The base price per kWh is $0.43 at the Fairbanks Supercharger. Thanks to its V4 capabilities, it can charge at speeds up to 325 kW.
Despite being the northernmost Supercharger in North America, it is not even in the Top 5 northernmost Superchargers globally, because Alaska is south of Norway. The northernmost Supercharger is in Honningsvåg, Norway. All of the Top 5 are in the Scandanavian country.
Tesla’s Supercharger expansion in 2025 has been impressive, and although it experienced some early-quarter slowdowns due to V3-to-V4 hardware transitions, it has been the company’s strongest year for deployments.
🚨🚨 Tesla Supercharging had a HUGE year, and they deserve to be recognized.
🍔 Opened Tesla Diner, a drive-in movie theater with awesome, Chef-curated cuisine
🔌 Gave access to Superchargers to several EV makers, including Hyundai, Genesis, Mercedes-Benz, Kia, Lucid, Toyota,… pic.twitter.com/yYT2QEbqoW
— TESLARATI (@Teslarati) December 10, 2025
Through the three quarters of 2025, the company has added 7,753 stations and 73,817 stalls across the world, a 16 percent increase in stations and an 18 percent increase in stalls compared to last year.
Tesla is on track to add over 12,000 stalls for the full year, achieving an average of one new stall every hour, an impressive statistic.
Recently, the company wrapped up construction at its Supercharger Oasis in Lost Hills, California, a 168-stall Supercharger that Tesla Solar Panels completely power. It is the largest Supercharger in the world.
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Tesla shocks with latest Robotaxi testing move
Why Tesla has chosen to use a couple of Model S units must have a reason; the company is calculated in its engineering and data collection efforts, so this is definitely more than “we just felt like giving our drivers a change of scenery.”
Tesla Model S vehicles were spotted performing validation testing with LiDAR rigs in California today, a pretty big switch-up compared to what we are used to seeing on the roads.
Tesla utilizes the Model Y crossover for its Robotaxi fleet. It is adequately sized, the most popular vehicle in its lineup, and is suitable for a wide variety of applications. It provides enough luxury for a single rider, but enough room for several passengers, if needed.
However, the testing has seemingly expanded to one of Tesla’s premium flagship offerings, as the Model S was spotted with the validation equipment that is seen entirely with Model Y vehicles. We have written several articles on Robotaxi testing mules being spotted across the United States, but this is a first:
🚨 Tesla is using Model S vehicles fitted with LiDAR rigs to validate FSD and Robotaxi, differing from the Model Ys that it uses typically
Those Model Y vehicles have been on the East Coast for some time. These Model S cars were spotted in California https://t.co/CN9Bw5Wma8 pic.twitter.com/UE55hx5mdd
— TESLARATI (@Teslarati) December 11, 2025
Why Tesla has chosen to use a couple of Model S units must have a reason; the company is calculated in its engineering and data collection efforts, so this is definitely more than “we just felt like giving our drivers a change of scenery.”
It seems to hint that Tesla could add a premium, more luxury offering to its Robotaxi platform eventually. Think about it: Uber has Uber Black, Lyft has Lyft Black. These vehicles and services are associated with a more premium cost as they combine luxury models with more catered transportation options.
Tesla could be testing the waters here, and it could be thinking of adding the Model S to its fleet of ride-hailing vehicles.
Reluctant to remove the Model S from its production plans completely despite its low volume contributions to the overall mission of transitioning the world to sustainable energy, the flagship sedan has always meant something. CEO Elon Musk referred to it, along with its sibling Model X, as continuing on production lines due to “sentimental reasons.”
However, its purpose might have been expanded to justify keeping it around, and why not? It is a cozy, premium offering, and it would be great for those who want a little more luxury and are willing to pay a few extra dollars.
Of course, none of this is even close to confirmed. However, it is reasonable to speculate that the Model S could be a potential addition to the Robotaxi fleet. It’s capable of all the same things the Model Y is, but with more luxuriousness, and it could be the perfect addition to the futuristic fleet.
Tesla updates Cybertruck owners about key Powershare feature
Tesla’s northernmost Supercharger in North America opens
