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EV adoption spurs updated guidance on parking structure design

Credit: Riverwalk Landing Parking Deck

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As electric vehicles (EVs) become increasingly common on roads around the world, many infrastructural changes will be needed to accommodate them. One example includes the design of parking garages, which some say will require updated fire safety protocols and additional modifications to accommodate the heavy weight of EVs.

The United Kingdom’s Institution of Structural Engineers released a new design guidance for parking garages earlier this year, pointing out a broad range of topics related to the structures, from EV weight, charging access and reduced noise levels to fire safety considerations (via CNBC). The guidance includes suggestions for the design of garages that are multi-story, underground or simply located inside offices or residential buildings.

Perhaps the most pressing topic included in the guidance for parking garages — called multi-story car parks in the U.K. — is the battery hardware used in EVs, which makes them much heavier than internal combustion engine (ICE) vehicles. With increased range models and a wider span of vehicle classes, EV weights will likely continue getting heavier in the future.

“This extra load and the changing fire safety requirements are all considerations not just for new car parks, but for existing structures too,” the institution writes in the report.

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According to the group, average vehicle weights have increased from 1.5 metric tons (3,307 pounds) in 1974 to almost 2 metric tons (4,409 pounds) this year. As one example, Tesla’s forthcoming Cybertruck is a stainless steel behemoth, expected to weigh somewhere between 5,000 and 8,000 pounds (2.3 to 3.6 metric tons).

Institution fellow and co-author of the guidance Chris Whapples also notes that some newer EVs are well over 3 metric tons (6,614 pounds).

“The thing to bear in mind is that the ones that cause the damage, if you like, are the heavy vehicles — not the vehicles that are heavier than they were 40 years ago but still within the capacity of the design for car parks,” Whapples explained in an interview with CNBC. “We’re seeing increasing numbers now of SUVs, large executive cars — both fossil-fueled and battery ones — and pickup trucks, which are immensely heavy.”

Tesla Smart Summon retrieves Model 3 from closed garage

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Whapples details a handful of potential solutions for heavy vehicles, primarily including the need to retrofit older garages with increased structural support, either in specific spots that are determined to be weaker or in their entirety. He also notes that heavy vehicles could stay on ground floors to park, and garages could even screen the weights of cars as they enter.

“If one pickup is significantly overloaded and that car park is weak, that’s a potential disaster waiting to happen,” Whapples added. “We said, as an industry, we must actually check our car parks out and make sure that that’s not going to happen. Because what we want is the public to maintain confidence in our car parks and structural engineers.”

Another top concern detailed in the guidance was improving fire safety protocols in parking garages. Whapples notes that fire risks aren’t exclusive to EVs, adding that gasoline cars can also start fires and make situations more complicated. While EV fires aren’t considered more common than ICE vehicle fires, they can be especially tough to put out, he explains.

“To actually extinguish an EV fire is very, very difficult — particularly if the battery is on fire, because you’ve got so much energy that’s locked in,” Whapples said.

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As for potential solutions, Whapples says that sprinkler systems could be an important way to mitigate fire spread, especially in underground car parks.

“Although the sprinkler system will not put out the car fire, it will reduce the rate of spread within the car park, so it’s constantly … ‘quenching’ the car next to the one that’s on fire, and stopping that one from catching fire,” Whapples explains.

All of these and more points will need to be considered ahead of mass EV adoption, both for existing garages and newly built construction. The International Energy Agency (IEA) expects EVs, buses, vans and heavy trucks to reach as many as 145 million units globally by 2030, though government ramp-up efforts could boost that number even more. In 2022, 10 million EVs were sold, including plug-in hybrids and battery-electric vehicles.

The discussions come ahead of Tesla’s initial release of the Cybertruck, which has been widely discussed for its large size, among other details. If many EVs are physically larger than ICE vehicles in the future, it could also require garages to be built with similarly larger parking spaces. Tesla has rolled out some wider and longer parking spaces at its Supercharger stations for the Cybertruck, a move that may be necessary for all parking structures down the road.

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Will Tesla Cybertruck fit inside a home garage?

What are your thoughts? Let me know at zach@teslarati.com, find me on X at @zacharyvisconti, or send your tips to us at tips@teslarati.com.

Zach is a renewable energy reporter who has been covering electric vehicles since 2020. He grew up in Fremont, California, and he currently lives in Colorado. His work has appeared in the Chicago Tribune, KRON4 San Francisco, FOX31 Denver, InsideEVs, CleanTechnica, and many other publications. When he isn't covering Tesla or other EV companies, you can find him writing and performing music, drinking a good cup of coffee, or hanging out with his cats, Banks and Freddie. Reach out at zach@teslarati.com, find him on X at @zacharyvisconti, or send us tips at tips@teslarati.com.

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Tesla already has a complete Robotaxi model, and it doesn’t depend on passenger count

That scenario was discussed during the company’s Q4 and FY 2025 earnings call, when executives explained why the majority of Robotaxi rides will only involve one or two people.

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Credit: @AdanGuajardo/X

Tesla already has the pieces in place for a full Robotaxi service that works regardless of passenger count, even if the backbone of the program is a small autonomous two-seater. 

That scenario was discussed during the company’s Q4 and FY 2025 earnings call, when executives explained why the majority of Robotaxi rides will only involve one or two people.

Two-seat Cybercabs make perfect sense

During the Q&A portion of the call, Tesla Vice President of Vehicle Engineering Lars Moravy pointed out that more than 90% of vehicle miles traveled today involve two or fewer passengers. This, the executive noted, directly informed the design of the Cybercab. 

“Autonomy and Cybercab are going to change the global market size and mix quite significantly. I think that’s quite obvious. General transportation is going to be better served by autonomy as it will be safer and cheaper. Over 90% of vehicle miles traveled are with two or fewer passengers now. This is why we designed Cybercab that way,” Moravy said. 

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Elon Musk expanded on the point, emphasizing that there is no fallback for Tesla’s bet on the Cybercab’s autonomous design. He reiterated that the autonomous two seater’s production is expected to start in April and noted that, over time, Tesla expects to produce far more Cybercabs than all of its other vehicles combined.

“Just to add to what Lars said there. The point that Lars made, which is that 90% of miles driven are with one or two passengers or one or two occupants, essentially, is a very important one… So this is clearly, there’s no fallback mechanism here. It’s like this car either drives itself or it does not drive… We would expect over time to make far more CyberCabs than all of our other vehicles combined. Given that 90% of distance driven or distance being distance traveled exactly, no longer driving, is one or two people,” Musk said. 

Tesla’s robotaxi lineup is already here

The more interesting takeaway from the Q4 and FY 2025 earnings call is the fact that Tesla does not need the Cybercab to serve every possible passenger scenario, simply because the company already has a functional Robotaxi model that scales by vehicle type.

The Cybercab will handle the bulk of the Robotaxi network’s trips, but for groups that need three or four seats, the Model Y fills that role. For higher-end or larger-family use cases, the extended-wheelbase Model Y L could cover five or six occupants, provided that Elon Musk greenlights the vehicle for North America. And for even larger groups or commercial transport, Tesla has already unveiled the Robovan, which could seat over ten people.

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Rather than forcing one vehicle to satisfy every use case, Tesla’s approach mirrors how transportation works today. Different vehicles will be used for different needs, while unifying everything under a single autonomous software and fleet platform.

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Tesla Cybercab spotted with interesting charging solution, stimulating discussion

The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.

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Credit: What's Inside | X

Tesla Cybercab units are being tested publicly on roads throughout various areas of the United States, and a recent sighting of the vehicle’s charging port has certainly stimulated some discussions throughout the community.

The Cybercab is geared toward being a fully-autonomous vehicle, void of a steering wheel or pedals, only operating with the use of the Full Self-Driving suite. Everything from the driving itself to the charging to the cleaning is intended to be operated autonomously.

But a recent sighting of the vehicle has incited some speculation as to whether the vehicle might have some manual features, which would make sense, but let’s take a look:

The port is located in the rear of the vehicle and features a manual door and latch for plug-in, and the video shows an employee connecting to a Tesla Supercharger.

Now, it is important to remember these are prototype vehicles, and not the final product. Additionally, Tesla has said it plans to introduce wireless induction charging in the future, but it is not currently available, so these units need to have some ability to charge.

However, there are some arguments for a charging system like this, especially as the operation of the Cybercab begins after production starts, which is scheduled for April.

Wireless for Operation, Wired for Downtime

It seems ideal to use induction charging when the Cybercab is in operation. As it is for most Tesla owners taking roadtrips, Supercharging stops are only a few minutes long for the most part.

The Cybercab would benefit from more frequent Supercharging stops in between rides while it is operating a ride-sharing program.

Tesla wireless charging patent revealed ahead of Robotaxi unveiling event

However, when the vehicle rolls back to its hub for cleaning and maintenance, standard charging, where it is plugged into a charger of some kind, seems more ideal.

In the 45-minutes that the car is being cleaned and is having maintenance, it could be fully charged and ready for another full shift of rides, grabbing a few miles of range with induction charging when it’s out and about.

Induction Charging Challenges

Induction charging is still something that presents many challenges for companies that use it for anything, including things as trivial as charging cell phones.

While it is convenient, a lot of the charge is lost during heat transfer, which is something that is common with wireless charging solutions. Even in Teslas, the wireless charging mat present in its vehicles has been a common complaint among owners, so much so that the company recently included a feature to turn them off.

Production Timing and Potential Challenges

With Tesla planning to begin Cybercab production in April, the real challenge with the induction charging is whether the company can develop an effective wireless apparatus in that short time frame.

It has been in development for several years, but solving the issue with heat and energy loss is something that is not an easy task.

In the short-term, Tesla could utilize this port for normal Supercharging operation on the Cybercab. Eventually, it could be phased out as induction charging proves to be a more effective and convenient option.

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Tesla confirms that it finally solved its 4680 battery’s dry cathode process

The suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.

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tesla 4680
Image used with permission for Teslarati. (Credit: Tom Cross)

Tesla has confirmed that it is now producing both the anode and cathode of its 4680 battery cells using a dry-electrode process, marking a key breakthrough in a technology the company has been working to industrialize for years. 

The update, disclosed in Tesla’s Q4 and FY 2025 update letter, suggests the company has finally resolved one of the most challenging aspects of its next-generation battery cells.

Dry cathode 4680 cells

In its Q4 and FY 2025 update letter, Tesla stated that it is now producing 4680 cells whose anode and cathode were produced during the dry electrode process. The confirmation addresses long-standing questions around whether Tesla could bring its dry cathode process into sustained production.

The disclosure was highlighted on X by Bonne Eggleston, Tesla’s Vice President of 4680 batteries, who wrote that “both electrodes use our dry process.”

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Tesla first introduced the dry-electrode concept during its Battery Day presentation in 2020, pitching it as a way to simplify production, reduce factory footprint, lower costs, and improve energy density. While Tesla has been producing 4680 cells for some time, the company had previously relied on more conventional approaches for parts of the process, leading to questions about whether a full dry-electrode process could even be achieved.

4680 packs for Model Y

Tesla also revealed in its Q4 and FY 2025 Update Letter that it has begun producing battery packs for certain Model Y vehicles using its in-house 4680 cells. As per Tesla: 

“We have begun to produce battery packs for certain Model Ys with our 4680 cells, unlocking an additional vector of supply to help navigate increasingly complex supply chain challenges caused by trade barriers and tariff risks.”

The timing is notable. With Tesla preparing to wind down Model S and Model X production, the Model Y and Model 3 are expected to account for an even larger share of the company’s vehicle output. Ensuring that the Model Y can be equipped with domestically produced 4680 battery packs gives Tesla greater flexibility to maintain production volumes in the United States, even as global battery supply chains face increasing complexity.

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