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Electrify America edges out Tesla Superchargers in 2021 EV Charging Infrastructure Benchmark

Credit: Electrify America/Twitter and Tesla Charging/Twitter

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5 years ago

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Last year, global engineering firm umlaut, which performs benchmarks in various industries, adapted its testing prowess to the United States’ electric vehicle market to determine which public charging network was the best in the country. The effort, which was dubbed as the inaugural 2020 USA EV Charging Infrastructure Benchmark, determined that Electrify America was by far the best public charging network in the United States. 

But while the inaugural USA EV Charging Infrastructure Benchmark was notable, there was a popular network that was not included in umlaut’s first analysis: the ubiquitous Tesla Supercharger Network, which is very prevalent but not open to the public like Electrify America. This was why in this year’s USA EV Charging Infrastructure Benchmark, the global engineering firm made it a point to include the Supercharger Network in its study, even if the system had to be scored quite differently due to it being specifically designed for Tesla’s electric cars. 

Credit: umlaut

For the 2021 USA EV Charging Infrastructure Benchmark, umlaut performed a comparative study of the country’s fast-charging networks and rated each one using several criteria, specifically: interoperability, pricing, transparency, functionality, and availability, among others. A Tesla Model 3 and a Ford Mustang Mach-E were selected as the vehicles that would used for the study. The EV pair covered 2,100 miles over six days to test charging stations across Michigan, Ohio, Maryland, New Jersey, New York, Connecticut, and Pennsylvania. 

To rank the different charging networks, umlaut opted to split its analysis into two areas: the “Digital Platform,” which includes a service’s website and mobile app, and the “Charging Location,” which includes ease of payment, amenities, and the technical performance of the system itself. The results, interestingly enough, revealed that Electrify America was still the overall winner with 702 points due to its balanced scores in the “Digital Platform” and “Charging Location” categories. 

Credit: umlaut

Tesla’s Supercharger Network was a second with an overall score of 649. This was quite interesting as Superchargers completely dominated the “Charging Location” metric, earning a perfect score in “Technical Performance” and high scores in the “Access and Payment” subcategories, among others. However, the Supercharger Network lost points in the “Digital Platform” category since Tesla’s website and mobile app were not as useful as those of other networks. This was, of course, partly due to the fact that Tesla’s Supercharger sessions were already integrated into the company’s vehicles themselves. 

Despite the challenges presented by the Supercharger Network in this year’s 2021 USA EV Charging Infrastructure Benchmark, umlaut’s Christian Sussbauer noted that Tesla’s charging systems excel in numerous key areas.

Credit: umlaut

“We had a lot of internal discussions about including Tesla Superchargers in this year’s Benchmark because we really want to create a testing system that will capture the right metrics and provide the most useful information to the EV industry. To be honest, if you asked me before we conducted the tests, I think I would have predicted that Tesla Superchargers would end up leading in total points because it’s well known that they do a great job in many aspects of fast charging. And actually, our test results show this clearly—Superchargers excel in many important areas. It’s actually a little boring to test Supercharger stations because you just plug them in, and they reliably work.”

“We were happy to find a very high level of simplicity and reliability with Electrify America this year as well. Using an EV with Plug & Charge enabled on Electrify America’s network was a very good user experience. All of the EV industry should strive to replicate that aspect of Superchargers and Electrify America/Plug & Charge. And in the end, Electrify America also has a very useful smartphone app and website that combined to put them over the top in terms of total points scored for the metrics we were measuring in 2021,” Sussbauer said. 

Watch a video about the 2021 USA EV Charging Infrastructure Benchmark below.

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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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Elon Musk

Elon Musk and Trump are closer than ever, and Tesla could be the big winner

Elon Musk sat beside Trump as AI leaders signed a voluntary White House safety accord.

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3 hours ago

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September 29, 2026

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Elon Musk had the seat right next to President Donald Trump on Tuesday as the White House hosted the leaders of America’s biggest artificial intelligence companies for a lunch that ended with a voluntary industry accord on AI safety.

A seating chart Trump posted on Truth Social placed Musk at the president’s left in the East Room, with Nvidia CEO Jensen Huang on his right, according to an Associated Press reporter. Anthropic CEO Dario Amodei, OpenAI President Greg Brockman, Meta’s Mark Zuckerberg, Google’s Sundar Pichai, Microsoft’s Satya Nadella and Amazon founder Jeff Bezos also attended, along with Vice President JD Vance and House Speaker Mike Johnson.

After the lunch, Trump told reporters outside the West Wing that the executives had signed “The White House Accord on Superintelligence: A Joint Commitment on Frontier SI Responsibilities.” Johnson described it as a voluntary statement of principles built on “robust internal controls and layers of internal and external review,” while Zuckerberg said company boards would independently review reports from outside auditors. Trump called the document “morally binding,” said he would name a new AI czar within days, and signed an executive order formally renaming artificial intelligence “super intelligence,” CNBC reported.

Musk was not in the room for Tesla alone. Since SpaceX absorbed xAI, he runs the company behind Grok and one of the largest AI training operations anywhere. On September 25, he said another 220,000 Nvidia GB300 chips would come online at Colossus 2 within a week, with more expected in November and December.

SpaceX confirms third massive compute deal at Colossus data center

 

Musk also used the trip to restate his energy ambitions. “SpaceX is aiming together with Tesla to do 200 gigawatts of solar production per year,” he said at an event in Washington. It is the same combined target he laid out that feeds directly into Terafab, the Tesla and SpaceX chip venture that will need enormous amounts of power.

The showing between Musk and Trump has come a long way, since the two had the very public split in mid 2025 after Musk opposed the “Big Beautiful Bill” and left DOGE. They reconciled at Charlie Kirk’s memorial that September, and Trump later called their relationship “good”. Since then, Musk has joined Trump’s China delegation in May and attended last week’s White House state dinner for Chinese President Xi Jinping.

For Tesla, that access to government official could pay dividends. As Teslarati noted in January, federal autonomy rules, NHTSA oversight and a single national standard for driverless vehicles all run through an administration Musk can more easily reach directly as Tesla works to scale Robotaxi and Cybercab beyond Texas.

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Elon Musk

Tesla Roadster’s new patent preps white-knuckle speeds, keeping it grounded

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16 hours ago

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September 29, 2026

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Credit: @BLKMDL3/Twitter

Ahead of its highly anticipated unveiling, Tesla’s upcoming Roadster received a new patent that aims to keep it grounded while enabling white-knuckle speeds.

The patent, which was granted on September 29, is titled “Electric Car Fan,” bluntly stating its design but not its purpose, which is further detailed in the text of the application. Interestingly, it comes two weeks before the Roadster event, which was delayed due to unfavorable weather on Thursday, which could cause issues, as Tesla revealed the event must be held outdoors.

The purpose is to solve a problem that is relatively unique to high-performance electric cars. Instant motor torque is useless if the tires cannot plant that force, and conventional wings and underbody tunnels generate downforce only when air is already rushing past the car. At launch, in slow corners, and under hard braking from modest speed, passive aerodynamic additions contribute essentially very little to downforce.

Tesla’s filing says that its fans can produce the downforce needed, independent of vehicle velocity, then ease off so the same hardware does not pile on drag at highway speeds, an issue that can come from excessive body modifications.

The hardware outlined in the patent is a ducted-fan package that is placed into the rear of the vehicle. An underbody inlet between the rear wheels feeds a duct that rises to a wide outlet in the diffuser. In that outlet are four axial fans, which are divided by vertical strakes. They will pull air from under the floor and press the chassis onto the pavement.

The language in the patent claims it can cut drag rather than add to it while simultaneously increasing downforce.

Tesla Roadster event requires restricted airspace, and the FAA obliges

The fans run from the high-voltage battery and a vehicle control system, so output can be modulated rather than left on as a fixed penalty.

There are additional strengths that can come from this design, like extra tire load at low speed, which can contribute to even more face-melting acceleration rates, decrease stopping distance, and sharper turn-in before a wing has air to work with. Adjustable fan speed lets the car add grip only when needed, so it can be catered to the force of a turn or acceleration.

These designs were previously used, and banned, in some competitive settings. The Brabham BT46B was banned in F1 competition for using a similar fan design and being labeled as too effective.

Tesla still lists the Roadster as having a sub-two-second 0-60 MPH time and a 250-plus-MPH top speed, and there are expectations for a SpaceX cold-gas thruster package that could not only increase acceleration but potentially cause the vehicle to hover.

It is important to note that a patent is not a production part, and packaging four fans in a rear diffuser, managing noise, and potential debris are all things Tesla must consider. With that being said, the patent being granted shows Tesla is designing the Roadster to go fast, but it is also attempting to use unique strategies to combat any issues it might have at those speeds.

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Investor's Corner

Tesla showrooms picked clean ahead of Q3 end as demand looks strong

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18 hours ago

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September 29, 2026

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Credit: @thaichiminh1907/X

Tesla (NASDAQ: TSLA) showrooms have been picked clean ahead of the end of the third quarter of the year, as demand looks to be strong and delivery estimates for new vehicles are pushed into late 2026 and early 2027.

Tesla appears to have sold out of many of its Model 3 and Model Y trim levels in the United States, as only the Model Y RWD and Model Y All-Wheel-Drive are available for delivery before the end of the year.

Additionally, many showrooms are either completely empty or void of all but just one demo unit within the buildings themselves in an effort to bolster what could be one of Tesla’s best quarters in vehicle deliveries in recent memory.

Additionally, when I spoke to the guys at Tesla Mechanicsburg two weeks ago, when I returned the Model Y L, their third hauler of the week had just arrived, and every vehicle on it, along with every vehicle in their delivery lot, was accounted for and had a name attached to it for delivery.

Tesla saw a 25 percent increase in deliveries in Q2 compared to the same quarter the year before. The vast majority of the 480,126 units it delivered, 467,762 vehicles to be exact, were the Model 3 and Model Y.

In Q3 2025, Tesla delivered 497,099 vehicles, once again a figure that was dominated by the company’s two mass-market vehicles. Analysts have unusually wide predictions for this quarter, likely because so many firms missed the Q2 delivery figure by such a substantial margin; Wall Street predicted 408,000 cars, while Tesla delivered 480,000.

Goldman Sachs has Tesla slotted for 435,000 deliveries in Q3, while JPMorgan said it anticipates 482,000. The median guess is about 449,000 deliveries for Q3.

Interested in ordering a Tesla? Use my referral code for three free months of Full Self-Driving (Supervised) here.

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