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Tesla Megapack fire in Australia did not start from battery modules: analysis

Credit: @SolarInMASS/Facebook

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While undergoing its commissioning process in late September, a fire broke out in one of the Tesla Megapacks at the Bouldercombe big battery in Queensland, Australia. The fire triggered debates about the viability of renewable energy solutions, as well as the safety of battery storage systems. 

The fire was not severe, with Genex Power, the owner of the battery storage system, stating that the fire did not even necessitate the use of water at all. Genex CEO Craig Francis also noted that the isolated nature of the fire suggests that the incident would not have any significant impact on the Bouldercombe big battery. 

And as per an announcement from Genex Power, the fire actually did not start at the Megapack’s battery modules. Instead, the fault initially occurred on the AC side of the impacted Megapack unit. The fault then propagated to the battery modules within the Megapack. This was determined following an analysis of the incident by Tesla, Genex, and other stakeholders.

Genex described the findings of the Megapack battery fire analysis in its announcement

“The preliminary RCA indicates that a fault occurred on the AC side of the Megapack unit. The fault then propagated to the battery modules within the Megapack. The burn of the Megapack followed design and certification testing expectations under UL9540A, with no external water required, and no propagation of the active fire to adjacent Megapack units or balance of plant. 

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“The failure has been isolated to the power electronics interface with the AC bus bar in the individual Megapack unit itself and not the broader installation of Megapack units. In order to mitigate against a further event, Tesla will be undertaking replacement of two identified power electronics units and out of caution, physical inspection of the power electronics within the remainder of units at the Project site. Genex will also be implementing upgrades to breaker control setting response times to further mitigate against a potential future event,” Genex wrote.

While the minor fire affected one Megapack battery in the Bouldercombe site, the Megapack adjacent to the impacted unit also suffered minor thermal damage to its electrical insulation. Thus, Tesla would be providing two Megapacks to replace the two units that were damaged by the fire. The Megapacks are already en route to the site, and are expected to arrive in early December 2023, as noted in a PV Magazine Australia report. 

Genex Power’s announcement can be viewed below.

Megapack Battery Fire Investigation by Simon Alvarez on Scribd

Don’t hesitate to contact us with news tips. Just send a message to simon@teslarati.com to give us a heads up.

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Simon is an experienced automotive reporter with a passion for electric cars and clean energy. Fascinated by the world envisioned by Elon Musk, he hopes to make it to Mars (at least as a tourist) someday. For stories or tips--or even to just say a simple hello--send a message to his email, simon@teslarati.com or his handle on X, @ResidentSponge.

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Tesla Semi undergoes major redesign as dedicated factory preps for deliveries

The Semi has been one of the most anticipated products in the Tesla lineup due to the disruption it could cause in the trucking industry.

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Tesla put its all-electric Semi truck through quite a major redesign as its dedicated factory for the vehicle is preparing for initial deliveries to the public starting next year.

The Semi has been one of the most anticipated products in the Tesla lineup due to the disruption it could cause in the trucking industry.

It has already been in numerous pilot programs for some pretty large companies over the past couple of years, PepsiCo. being one of them, and it is moving toward first deliveries to other companies sometime in 2026.

Yesterday at the 2025 Annual Shareholder Meeting, Tesla unveiled its new Semi design, which underwent a pretty significant facelift to match the aesthetic and vibe of the other vehicles in the company’s lineup.

Additionally, Tesla announced some other improvements, including changes to efficiency, and some other changes that we did not get details on yet.

The first change was to the design of the Semi, as Tesla adopted its blade-like light bar for the Class 8 truck, similar to the one that is used on the new Model Y and the Cybertruck:

There also appear to be a handful of design changes that help with aerodynamics, as its efficiency has increased to 1.7 kWh per mile.

Tesla also said it has an increased payload capability, which will help companies to haul more goods per trip.

All of these changes come as the company’s Semi Factory, which is located on the same property as its Gigafactory in Reno, Nevada, is just finishing up. In late October, it was shown that the Semi facility is nearly complete, based on recent drone imagery from factory observer HinrichsZane on X:

Tesla Semi factory looks nearly complete

The factory will be capable of producing about 50,000 Tesla Semi units annually when it is completely ramped. The company has major plans to help get the Semi in more fleets across the United States.

Other entities are also working to develop a charging corridor for electric Class 8 trucks. The State of California was awarded $102 million to develop a charging corridor that spans from Washington to Southern California.

Another corridor is being developed that spans from Southern California to Texas, and 49 applicants won $636 million from the Department of Transportation for it.

Tesla requested funding for it, but was denied.

The Semi has been a staple in several companies’ fleets over the past few years, most notably that of Frito-Lay and PepsiCo., who have reported positive experiences thus far.

Musk said last year that the Semi had “ridiculous demand.”

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Tesla Cybercab production starts Q2 2026, Elon Musk confirms

Elon Musk highlighted that the fully autonomous vehicle will be the first Tesla designed specifically for unsupervised self-driving.

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Credit: Tesla/X

Tesla CEO Elon Musk confirmed that production of the company’s autonomous Cybercab will begin in April 2026, and its production targets will be quite ambitious. 

Speaking at Tesla’s 2025 Annual Shareholder Meeting, Musk highlighted that the fully autonomous vehicle will be the first Tesla designed specifically for unsupervised self-driving.

A robotaxi built for an autonomous world

Musk described the Cybercab as a clean-slate design optimized for autonomy, with no steering wheel, pedals, or side mirrors. “It’s very much optimized for the lowest cost per mile in an autonomous mode,” Musk said, adding that every Tesla produced in recent years already carries the hardware needed for full self-driving.

The Cybercab will be assembled at Giga Texas and will serve as the company’s flagship entry into the commercial robotaxi market. Musk emphasized that the project represents Tesla’s next evolutionary step in combining vehicle manufacturing, artificial intelligence, and mobility services.

One Cybercab every ten seconds

Musk reiterated that the Cybercab’s production process is more closely modeled on consumer electronics assembly than on traditional automotive manufacturing. This should pave the way for outputs that far exceed conventional automotive products.

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“That production is happening right here in this factory, and we’ll be starting production in April next year. The manufacturing system is unlike any other car. The manufacturing system of the Cybercab, it’s closer to a high volume consumer electronics device than it is a car manufacturing line. So the net result is that I think we should be able to achieve, I think, ultimately, less than a 10-second cycle time, basically a unit every 10 seconds.

“What that would mean is you could get on a line that would normally produce, say, 500,000 cars a year at a one minute cycle time, Model Y. This would be maybe as much as 2 million or 3 million, maybe ultimately it’s theoretically possible to achieve a 5 million unit production line if you can get to the 5-second cycle time,” the CEO said.

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Tesla China expecting full FSD approval in Q1 2026: Elon Musk

The CEO shared the update during Tesla’s Annual Shareholder Meeting.

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Credit: Tesla Europe & Middle East/X

Elon Musk has provided a concrete estimated date for Full Self-Driving’s (FSD) full approval in China. While a version of the system has been deployed to some users in China, the company only holds partial approval for FSD features in the country.

The CEO shared the update during Tesla’s Annual Shareholder Meeting, where stockholders also voted to approve Elon Musk’s ambitious 2025 performance award.

Elon Musk’s China FSD update

During the meeting, Elon Musk stated that Tesla expects to secure full regulatory approval for its Full Self-Driving (FSD) system in China by February or March 2026. This would mark a potential breakthrough in one of the world’s most competitive EV markets.

“We have partial approval in China, and we hopefully will have full approval in China around February or March or so. That’s what they’ve told us,” Musk said.

Tesla’s rollout of FSD features in China began in February 2025 under update 2024.45.32.12, which introduced what the company locally called “Autopilot automatic assisted driving on urban roads.” While not officially branded as FSD, the feature mirrored Tesla’s inner-city capabilities.

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Positive feedback from China

Feedback from local drivers suggests strong real-world performance for the company’s “Autopilot automatic assisted driving on urban roads” feature. One driver who used the system for two months described it as “well-calibrated and human-like,” adding that it “slows appropriately on narrow streets and picks up speed on major roads.” The Tesla owner further reported zero safety interventions over his testing period, calling the system “almost too polite” when encountering pedestrians and scooters.

A Tesla Model 3 driver was also able to drive to the base camp of Mount Everest from Henan Province, a journey of about 4,000 kilometers (2,485 miles), using “Autopilot automatic assisted driving on urban roads.” The driver’s trip was livestreamed on Chinese social media, where it attracted a lot of interest from viewers. 

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