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SpaceX preps Starship, Super Heavy for another week of Raptor testing

(SpaceX | NASASpaceflight - bocachicagal)

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SpaceX continues to work around the clock to prepare its latest Starship and Super Heavy booster prototypes for another week of testing – likely focused on firing up the Raptor engines installed on each vehicle.

Known as Booster 7 and Ship 24, SpaceX has been slowly testing both prototypes for approximately four months, beginning in April and May, respectively. Only in early August did the company cautiously begin attempting to ignite their Raptor engines as part of a process known as static fire testing – by far the most difficult and important part of qualifying both vehicles for flight.

Thanks to progress made in 2021, SpaceX already has significant experience testing an earlier orbital-class Starship prototype on the ground, but the process of testing Ship 24 is still fresh and unfamiliar for a number of reasons. For Booster 7, the challenges are even greater.

On top of major design changes made to Starship and Super Heavy over the last year as SpaceX continues to refine the rocket, the company also developed a substantially different version of its Raptor engine. Compared to Raptor V1, Raptor V2 almost looks like a new engine and can produce around 25% more thrust (230 tons versus 185 tons). SpaceX has also tweaked how the engine operates, particularly around startup and shutdown, further weakening the value of past experience testing Raptor V1 and V1.5 engines on Ship 20 and Boosters 3 and 4.

In other words, with Ship 24 and Booster 7 engine testing, it’s possible that SpaceX is effectively starting from scratch. Many aspects of testing – propellant conditioning, thermal characteristics, tanking, detanking, certain test stands – are likely mostly unchanged, but almost every aspect of a rocket is affected by its engines.

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Raptor V1.5 vs V2.
Combined, Booster 7 and Ship 24 are outfitted with 39 Raptor V2 engines.

Before SpaceX began testing Raptor V2 engines on Starship and booster prototypes, it wasn’t clear if the changes between V1.5 and V2 would invalidate a lot of prior testing. After the start of Booster 7 and Ship 24 static fire testing, it’s now clear that a lot of that earlier work has to be redone. It’s also clear that despite some of the simplifications in Raptor V2’s design, operating the engine on Starship and Super Heavy is much harder get get right.

Since mid-July, SpaceX has completed around 15-20 ‘spin-prime’ tests between Ship 24 and Booster 7 – more of that kind of test than any other prototype in the history of Starbase has performed. Spin-prime tests flow high-pressure gas through Raptor’s pumps to spin them up without igniting anything. It’s unclear why so many of those tests are being done, what SpaceX is gaining from it, or why the company appears to have completely stopped conducting preburner tests (a more life-like spin-prime with partial combustion).

A Raptor V2 engine is tested to apparent failure.

Regardless, eight weeks after the start of engine testing, Booster 7 has only performed three static fires (two with one engine, one with a max of three or four engines), and Ship 24 has only completed one static fire with two engines. Before either vehicle can be considered ready for flight, a day that could easily never come, each will likely need to conduct multiple successful static fires with all of their Raptor engines (6 on S24 and 33 on B7).

If the pace of Booster 7 testing doesn’t change, the vehicle could be months away from a full 33-engine static fire attempt – perhaps the single most important and uncertain test standing between SpaceX and Starship’s first orbital launch attempt. Ship 24’s path to flight readiness should be simpler, but it appears to be struggling almost as much.

According to CEO Elon Musk, “an intense effort is underway” to ensure that Super Heavy B7’s Raptor engines are well contained during anomalies, so that one engine violently failing won’t damage or destroy the booster, other engines, or the launch pad. That could certainly complicate the process of testing Booster 7, and it’s likely that SpaceX is taking some of the same actions to protect Ship 24.

In early September, after a partially successful Booster 7 static fire (its first multi-engine test) and numerous additional Ship 24 tests that failed to achieve ignition, SpaceX replaced engines on both vehicles. Booster 7 had one of 13 Raptor Center engines swapped out, while Ship 24 had one of its three Raptor Vacuum engines replaced.

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On September 5th, SpaceX distributed a safety alert to Boca Chica’s few remaining residents, confirming that it wants to restart testing as early as Tuesday, September 6th. Especially as of late, that alert guarantees nothing, but it does at least open the door for SpaceX if Ship 24, Booster 7, and the positions of the stars happen to be in the right mood between 8am and 8pm CDT. Additional opportunities are available on September 7th, 8th, 9th, and 12th.

Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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Tesla receives its first robotaxi permit in California

Tesla’s robotaxi services are one step closer to making it to California.

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Credit: Tesla

Ahead of Tesla’s plans to roll out a fleet of commercial robotaxis, the company has gained its first permit in a series of those needed to begin operating driverless ride-hailing services in California.

On Monday, the California Public Utilities Commission (CPUC) announced the approval of Tesla’s application for a charter-party carrier permit, which licenses the company to run ride-hailing and chauffeur services in the state, according to a report from Reuters on Tuesday.

The permit allows Tesla to own and operate a chauffeur fleet for certain commercial purposes, including the ability to transport employees across pre-arranged navigation routes. However, this permit does not yet offer full approval for ride-hailing or autonomous vehicle use.

Still, the permit comes as the first in a series of those Tesla will need to launch a highly-anticipated autonomous robotaxi business, which is expected to begin rolling out in Texas and California this year. Tesla also released its two-seat, steering wheel-less Cybercab at an event in October, eventually expected to be the basic fleet vehicle for driverless ride-hailing purposes.

You can see Tesla’s render for a ride-hailing mobile app below, along with Teslarati’s coverage of the October 10 “We, Robot” unveiling event for the Cybercab.

Credit: Tesla

READ MORE ON TESLA’S ROBOTAXI BUSINESS: Tesla flexes Robotaxi wireless charging — autonomy from top to bottom

In California, the CPUC will also co-manage regulatory needs for autonomy approval for Tesla, alongside the Department of Motor Vehicles (DMV).

During Tesla’s Q3 earnings call last November, Elon Musk said that Tesla employees in the Bay Area were already testing a ride-hailing service internally. Using an app, Musk said employees could already request rides and be taken to anywhere in the Bay.

Meanwhile, Tesla is aiming to roll out initial unsupervised rides as a service in the Austin, Texas area this summer, based on its Full Self-Driving (FSD) software. The system is first expected to be usable on individual owners’ vehicles, eventually using the recently unveiled Cybercab autonomous vehicle on a wider scale.

Tesla also hopes to expand the service to other states by the end of the year, though it’s not yet clear where.

Tesla mobile app tracker reports first lines referencing robotaxi service

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Tesla has joined the Australian Energy Council

Tesla Energy will join a top energy council in Australia, as it continues to deploy a wide range of battery projects in the country.

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Credit: Tesla Megapack | X

Tesla has been announced as the most recent member to join an industry group of electricity and energy businesses in Australia, coming amidst a wave of grid- and home-scale battery deployments in the country from the U.S. manufacturer.

Last week, Tesla Australia officially joined the Australian Energy Council (AEC) as the group’s newest member, contributing to a group of companies that administers gas and electricity to over 10 million homes. The news, announced in a post on LinkedIn, comes as Tesla continues to expand the presence of its grid-scale Megapacks and home-scale Powerwalls in Australia and elsewhere,

The council wrote the following announcement message in the post:

AEC membership provides an opportunity to collaborate to develop the solutions necessary to drive Australia’s energy transition. Together, we aim to create positive outcomes for consumers across the nation as the energy system decarbonises.

We look forward to working closely with Tesla Australia to help shape the future of Australia’s energy landscape.

The announcement also garnered a response from Tesla Energy’s Regional Director for the Asia-Pacific region Josef Tadich, who shared a few words about the news in another post:

A big thank you to Louisa Kinnear and the Australian Energy Council, Tesla are very much looking forward to working together in this space, in what is turning out to be an exciting 2025.

Wholesale and retail electricity markets are rapidly adapting and changing to new technologies, with more renewables and storage on the supply side, and more generation and flexible loads on the Customer demand side with VPPs, and controllable EV charging loads to name a few. Great time to be in this dynamic space!

READ MORE ON TESLA ENERGY IN AUSTRALIA: Tesla building battery repair facility near Collie Megapack project

The announcement comes as Tesla has shipped Megapacks to a handful of energy storage sites in Australia, including a 1,600MWh Tesla Megapack facility in Plumpton, Victoria that’s expected to turn on sometime this year. Tesla is also working on expanding the Western Australia “Collie” battery, which will feature 2,240 MWh of Megapack storage upon completion of phase two.

While the U.S. company currently builds its Megapacks at a so-called “Megafactory” in Lathrop, California, the company began production last month at a second Megafactory in Shanghai, China that’s expected to supply future energy projects in Australia. The company has also teased plans for a third Megafactory, though it isn’t yet clear where that could be built.

In addition to Tesla’s grid-scale Megapack batteries, the company also builds the Powerwall home-scale battery, which can be used for households or commercial buildings to store energy, along with being able to deploy energy back to the grid. Tesla also launched its next-generation Powerwall 3 in the Australian market last year.

The company utilizes its network of Powerwall owners to create giant, distributed batteries, called Virtual Power Plants (VPPs), effectively letting owners sell electricity back to the electrical grid during periods of peak demand. These programs are being utilized across much of Australia and several other markets throughout the world, and Tesla said in October that it had reached over 100,000 Powerwalls participating in VPPs worldwide.

Tesla Energy secures $375M Megapack contract

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Tesla arsonist set himself on fire after throwing Molotov cocktail: authorities

Witnesses reported that the suspect caught fire mid-act, with one device scorching his back as he fled.

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Credit: Tesla Asia/X

An arson attempt targeting a Tesla charging station in South Carolina left the suspect engulfed in flames and facing up to 20 years in prison, authorities have stated. 

The suspect allegedly torched three chargers in a protest against President Trump and Tesla CEO Elon Musk, scrawling anti-Trump graffiti before accidentally setting himself ablaze with his own Molotov cocktails, as noted in a New York Post report.

Arsonist Burns Self in Tesla Protest

Federal prosecutors stated that 24-year-old Daniel Clarke-Pounder hurled five Molotov cocktails at a Tesla charging station in North Charleston, igniting three chargers while leaving messages like “f–k Trump” and “long live the Ukraine” in the area. Witnesses reported that Clarke-Pounder caught fire mid-act, with one device scorching his back as he fled, according to a police report cited by WCBD.

“The suspect had accidentally caught their own back on fire while throwing the devices,” an initial police report noted. Clarke-Pounder was arraigned in federal court, though his injuries remained undisclosed.

Backlash Targets Musk’s Tesla Empire

The fiery incident follows a wave of hostility toward Tesla, fueled by Musk’s leadership of the Department of Government Efficiency (DOGE) under U.S. President Donald Trump. Over the past months, Teslas have been subjected to vandalism incidents, and some locations have been shot up. In some cases, Tesla locations have been attacked with Molotov cocktails.

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Officials such as President Donald Trump and Attorney General Pam Bondi have issued stern warnings against those who wish to attack Tesla and its customers. Trump, for one, pledged that anyone caught attacking American companies like Tesla will “go through hell.”

“No Place in Our Community”

Acting U.S. Attorney Brook B. Andrews condemned the attack, stating, “While we will defend the public’s right to peaceful protest, we will not hesitate to act when protest crosses the line into violence and mayhem.

“These kinds of attacks have no place in our community… We must remain united in our commitment to safety and respect for all, regardless of political differences.”

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