Tesla’s online configurator for its electric cars primarily shows a price that’s adjusted for incentives and estimated fuel savings. These savings vary depending on the vehicle being ordered, with the company listing estimated gas savings of $4,300 for the Model 3 and Model Y, $5,300 for the Model X, and $5,500 for the Model S. These may seem like optimistic estimates, but as it turns out, these figures are actually conservative, at least for the majority of the United States.
Tesla’s fuel savings estimate is based on the premise that charging an all-electric vehicle is a lot more affordable than filling up the tank of a petrol-powered car. Looking at the company’s estimates, it appears that the listed fuel savings for the Model S, 3, X, and Y are based on the assumption that drivers would drive their Tesla for 10,000 miles annually for a period of six years. The costs of charging a Tesla over this period is then compared to the estimated costs of refueling a comparable vehicle, such as a BMW, with premium gasoline.
This strategy actually makes sense, considering that the all-electric construction of a Tesla will likely allow the vehicle to be used for at least six years. The comparison with BMW’s vehicles is quite sound as well, seeing as both companies offer premium cars that perform and compete in the same segment. That being said, EV charging rate monitoring service Optiwatt noted in a recent report that Tesla’s estimated gas savings are a lot more nuanced than what the company’s online configurator would suggest.
If there is one area where Tesla could be faulted, it is in the way that its estimated fuel savings for the US are the same regardless of the state where the car is being purchased. Different states have different electricity and average fuel prices, which means that there are some places where Tesla drivers could save more than the company’s own estimates, and areas where the opposite will be accurate. Take Hawaii, for example. The state pays 32 cents per kWh of electricity, which is over three times higher than the 9 cents per kWh that are paid by residents in Oklahoma.
Fuel consumption varies across states as well, with drivers in rural areas consuming more petrol and drivers in high-density states like New York consuming less. Wyoming drivers buy the most gas per capita at 609 gallons per person per year, while New York purchases less than half at 292 gallons per person per year. Considering that Tesla’s fuel savings rely on the price discrepancy between electricity and gas, owners who drive more are more likely to meet the company’s fuel savings estimates compared to owners who drive less.
Optiwatt’s analysis notes that ultimately, there are some areas in the United States where owning a Tesla will save drivers far more than what the company’s estimates would suggest, and there are some areas where fuel savings will be underwhelming. Driving a Model Y in Rhode Island for 10,000 miles every year for six years will save owners about $4,235 in fuel costs, which is a bit less than the company’s $4,300 estimate. Driving the all-electric crossover in Wyoming for six years, on the other hand, will give owners fuel savings of $11,122, over two times the company’s estimates.
A look at Optiwatt’s data shows that Tesla’s newer vehicles like the Model 3 and Model Y are more likely to meet the company’s fuel savings estimates, despite the Model S and Model X’s free Supercharging capabilities. Yet on average, across Tesla’s vehicle lineup, it appears that Americans can expect to save about $2,500 more than the company’s estimated savings over a six-year period. This bodes well for electric cars and their economic appeal as a whole. After all, a Tesla is not just designed to run for 6 years. With the company’s million-mile batteries poised to be released soon, Tesla drivers over the years will likely see even more fuel savings for every electric car purchase.
Elon Musk has acknowledged that early discussions with Taiwan Semiconductor Manufacturing Company (TSMC) could bring the company into his ambitious Terafab semiconductor project, signaling a possible partnership with the world’s leading contract chipmaker.
Musk confirmed that early talks are underway, but as of right now, they are “just discussions.” There is no confirmation of a deal nor dismissal of the possibility of one, leaving open the prospect of one of the largest advanced-chip collaborations under discussion in the U.S.
@wholemars Just discussions, but something may come of it
— Elon Musk (@elonmusk) October 3, 2026
The report that speculated on potential discussions between Terafab and TSMC comes from Tim Culpan, who outlined a few ways the collaboration could operate. One is TSMC using the project as an “anchor customer” for future facilities in Texas, potentially contributing process expertise, operational know-how, or capacity while Terafab provides capital, long-term purchase commitments, or both.
Tesla and SpaceX jointly developed the Terafab project, with Intel already participating on the tech side. Elon Musk announced the project in March, and it intends to produce more than one terawatt of AI compute capacity annually once fully built.
Company statements place the first phase at approximately $16.8 billion in cost, with later filings pointing to a total that could reach well into the tens of billions across multiple stages.
Intel joined the effort in April 2026 and is expected to supply its 14A manufacturing process for the full-scale plant.
Musk has said existing suppliers, including Samsung and TSMC, remain important for near-term needs; Tesla already has production arrangements with Samsung for AI5 and AI6 chips, but that future demand from Optimus robots, Cybercab vehicles, and planned space-based data centers will eventually exceed what the global industry can currently deliver.
Terafab is positioned as the long-term answer to that projected shortfall, and Tesla did something similar during COVID to avoid a chip shortage. This is just a much larger-scale solution.
If the partnership were to materialize, it would add TSMC’s industry-leading strategies to a project that already combines Tesla’s and SpaceX’s capital and offtake with Intel’s process technology. For now, the only public confirmation is Musk’s brief acknowledgement that conversations are occurring.
Tesla’s early strategy for charging units operating within its Robotaxi fleet reveals that the company surely has not lost any of that scrappy DNA that took it from an unlikely success story to the most valuable carmaker in the world.
An observer at a Tesla Supercharger in Austin spotted ten total Robotaxi vehicles arrive: one Cybercab and nine Model Y units. A Tesla employee was waiting at the lot and allowed each unit to park itself; every car that arrived had nobody in it.
Tesla wins FCC approval for wireless Cybercab charging system
The Tesla employee would walk around and plug each car in, adjusting the parking if needed:
So look at what I found. This is how Tesla charges unsupervised robotaxis at a public supercharger. Here is a driverless Cybercab showing up with no one in it. There are 9 other Model Ys that showed up too. A Tesla employee is walking around and plugging each of them in. She also moves the cars if they are not positioned well enough to charge. I love this process. One person charges multiple robotaxis at once
— Abhimanyu Yadav (@WorldlyReviewer) October 3, 2026
It’s a very interesting strategy, but extremely understandable at this early point in the Robotaxi program. It’s only been out for about 15 months, and Cybercab just entered the fleet in early September.
On top of that, Tesla is still working tirelessly on its wireless charging apparatus, and a new patent was just published regarding that product last week.
However, this is just another example of how Tesla still has plenty of that scrappy DNA leftover from the “production hell” days, when CEO Elon Musk slept on the floor of the factory, employees were working crazy hours, Tesla was building Sprung Structures to build cars in, and the company was tiptoeing on the brink of bankruptcy.
@Teslarati Sheer magnitude of the entire production system is hard to appreciate. Almost every element of production is >75% automated. Only wire harnesses & general assembly, which are <10% of production costs, are primarily manual.
— Elon Musk (@elonmusk) October 12, 2020
For now, Tesla is utilizing a simple system for recharging its ride-hailing vehicles, and that is a Tesla employee doing it manually until another solution presents itself. Sure, it’s not the most high-tech thing, and it certainly is not what people might have expected at this point in time, but it works, and it’s keeping the entire suite running.
Tesla is expanding its Robotaxi service hours by pushing the time back by one hour, keeping the ride-hailing service operational until 11 p.m., one hour later than previously.
CEO Elon Musk confirmed the change and offered a specific reason the expansion has been gradual: the system still needs to reliably avoid small pets that are difficult to see after dark, as they commonly blend into the color of the road, especially when they’re grey.
The latest adjustment restores only a fraction of the operating window the service once held. When paid Robotaxi rides began in Austin on June 22, 2025, vehicles ran from 6 a.m. to midnight.
In September 2025, Tesla lengthened the day to a 2 a.m. close, producing a 20-hour window that stayed in place for most of the following year. By early August of this year, the cutoff had already been pulled back; an August 26 update formalized hours of 6 a.m. to 10 p.m. across Austin and several other markets.
The October move to 11 p.m. therefore leaves the Austin day one hour shorter than the original launch schedule and three hours shorter than the 2025 peak.
Musk addressed the constraint directly after the announcement. “The main thing we’re trying to solve is making sure that we don’t run over pets when they’re hard to see at night,” he wrote. “Literally trying to avoid grey kittens on grey tarmac in the dark.”
Robotaxi operating hours moved from 10pm to 11pm.
The main thing we’re trying to solve is making sure that we don’t run over pets when they’re hard to see at night. Literally trying to avoid grey kittens on grey tarmac in the dark.
— Elon Musk (@elonmusk) October 3, 2026
The example points to a low-contrast perception problem in which a small animal can blend into the road surface under limited lighting.
Tesla’s vehicles rely on cameras and neural-network processing rather than lidar; Musk has previously argued that advanced vision software can extract useful information even in low light by analyzing photon counts, but the pet-detection case remains the stated limiter in later hours.
The modest schedule change arrives alongside faster growth in the purpose-built Cybercab fleet. Texas registration data tracked by observers showed the Austin Cybercab count rising sharply in recent weeks, reaching 169 vehicles after more than 100 were added in a short span.
Tesla has indicated that a broader shift toward 24-hour operation is tied to the upcoming FSD v15 software release expected this month on Robotaxi vehicles. Until that capability is validated for the edge cases Musk described, the company continues to add service time incrementally rather than jumping straight to overnight coverage.
The one-hour extension gives Austin riders a later option for evening trips while the underlying detection work continues.
Elon Musk teases TSMC as potential Terafab partner
Tesla reveals early Robotaxi charging strategy, showing scrappy DNA
