Why you might be charging your EV wrong – and what to do instead
Many EV drivers carry over habits from driving gasoline cars when they charge EVs, but that leads to wasted time, inconvenience, and range anxiety, according to a new study.
Professors Frances Sprei of Sweden’s Chalmers University and Willett Kempton of the University of Delaware are EV technology and usage experts. They interviewed EV users in both Sweden and the US and found unanticipated and previously unreported EV charging habits and ideas.
Their study, “Mental models guide electric vehicle charging,” in April’s edition of the peer-reviewed journal Energy, found that novice EV drivers, and even those who had months of EV driving experience, use a “monitor gauge” mental model: They monitor the battery charge gauge while driving, and when the gauge is low, head to an EV charging station to recharge, as a gas car driver would at a gas station.
In contrast, the study found that a few experienced EV drivers had developed a strategy of
using a trigger event to spur them to plug in their EV.
Kempton said:
Some of the more sophisticated EV users had picked a repeating event that happens at a place they can plug in and at a time or event lasting several hours. This is commonly when returning home at the end of the day or arriving at work.
A few people had selected unexpected triggers, such as shopping, and for one, when walking his dog in the evening.
Users with the “event-triggered” mental model respond to their selected event by plugging in without the need to make decisions on a daily basis. This model means that the driver will likely plug in even if it’s not needed, but interviewees’ feedback suggested that’s worth it not to have to make charging decisions:
“Which trips do I need to take tomorrow?”
“Are tomorrow’s trips less than the miles shown on the gauge now?”
“How likely is an unexpected trip tomorrow?”
The researchers also found a “planning” mental model for taking road trips in an EV. This third model is used only when a driver needs to take a trip longer than their battery range, so they have to plan for DC fast charging availability. Most drivers take longer road trips just a few days a year, but, the authors note, DC fast charging consumes most of the attention in planning EV charging station infrastructure.
The article points out that the problem with using the old “monitor gauge” model is that EV recharging and gasoline refueling require different strategies.
Refueling with gasoline takes only a few minutes, and one has to drive to or stop at a gas station.
By contrast, it can take hours to charge an EV with a Level 1 or 2 charger, and that can be done at home, work, or other places where one is parked anyway. If recharging is started at the right time and place, it takes only seconds to plug in.
Thus, each mental model is well adapted for one fuel but not the other.
Experienced EV drivers who had developed the “event-triggered” model didn’t complain
about range anxiety, inconvenience, or waiting to charge. Rather, the study quotes them saying the following about charging:
“[Recharging] is very practical … Even if you do it every day, it’s a routine thing.”
“The EV is much more convenient … You just put a cord in the wall instead of having to drive to a gas station and refuel and so on.”
“It was pretty nice not to have to refuel. Or rather, one refuels every evening. But one doesn’t have to think about it other times, somehow.”
Sprei said, “One of the implications of our results is that prospective EV buyers, as well as policymakers, should focus on securing access to charging close to home. If you are an EV buyer, you are not just buying a car.”
She added, “The old ‘monitor gauge’ mental model may also lead to a suboptimal oversizing of batteries that causes higher purchasing costs and excess vehicle weight.”
Read more: Volvo Cars says its new partner will reduce its EVs’ charging time by 30%
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Chinese carmaker XPeng is getting perilously close to bringing its AeroHT consumer eVTOL concept to market, thanks to a $250 million Series B round that’s set to accelerate the company’s modular “flying car” production plans.
XPeng subsidiary AeroHT had its first successful proof of concept test flight ahead of the brand’s annual 1024 back in 2023, where the company unveiled a pair of flying car designs. The X3 is an actual flying “car” that can drive, park, and take off on its own, and a second, modular eVTOL that folds up into the back of an electric van called the Land Aircraft Carrier.
That vehicle pair, shown at CES in January, was set to begin production this year, with the eVTOL component set to begin production in 2026 – and that’s looking a lot more likely thanks to the new infusion of capital!
AeroHT at CES 2025
Xpeng Aeroht raised $150 million in Series B1 funding last August, before launching its Series B2 funding round. The most recent announcement that the company has secured an additional $100 million in its Series B2 funding round brings the total amount raised to more than $750 million, with a $1B pre-revenue valuation.
CNEVPost reports that company aims to establish itself as a commercial pioneer in urban air mobility ahead of a potential IPO – and may get there sooner than later, thanks to several hundred pre-orders at the $280,000 projected price.
Electrek’s Take
Scooter Doll said it best, writing, “this footage (of the AeroHT test flight) is as scary and concerning as it is exciting and awe-inspiring.” Which is to say that these things are real, they seem like they’re getting built, and they seem like they’ll sell well enough to convince at least one or two remaining boomers that the flying car they’ve been promised their whole lives is – finally! – coming to market.
Here’s hoping.
SOURCE: Xpeng, via CNEVPost; gallery photos by the author.
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Flooring manufacturer Beauflor USA just turned on the biggest rooftop solar system by capacity in metro Atlanta — and it’s now powering part of its Georgia factory.
The new 1,040 kW system in Cartersville officially beats metro Atlanta’s previous rooftop solar record of 1,034 kW. The new array produces enough energy to power more than 100 homes. The system is expected to cover about 10% of Beauflor’s electricity needs and cut its carbon emissions by about 920 metric tons annually.
“This solar installation represents our commitment to sustainable manufacturing practices while making sound business decisions,” said Emile Coopman, continuous improvement manager at Beauflor. He added that the system is designed with room to grow: “This is the first step toward more renewable energy.”
The company partnered with Cherry Street Energy to install the nearly 2,000-panel system, which was completed in less than four months. Cherry Street invested $1.8 million into the project and is covering all construction and maintenance costs through a 30-year energy procurement agreement. Beauflor will buy solar power directly from Cherry Street, allowing it to avoid upfront capital costs while still lowering its energy bills.
“As Georgia’s manufacturers ramp up production amid rising costs for grid energy, sophisticated operators seek ways to quickly and sustainably address their energy needs,” said Cherry Street CEO Michael Chanin. “On-site solar with no capital expense delivers just that: reliable, affordable electricity.”
Chanin added that the system’s power output is especially impressive: “The previous record-holder for metro Atlanta’s largest rooftop solar required over 4,000 panels. We’re using less than 2,000 to reliably generate even more power.”
Read more: This is New Jersey’s largest high-rise residential rooftop solar array
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Jack Dorsey, co-founder and chief executive officer of Twitter Inc. and Square Inc., listens during the Bitcoin 2021 conference in Miami, Florida, on Friday, June 4, 2021.
Eva Marie Uzcategui | Bloomberg | Getty Images
Block shares jumped more than 10% in extended trading on Friday, as the fintech company gets set to join the S&P 500, replacing Hess.
It’s the second change to the benchmark this week, after S&P Global announced on Monday that ad-tech firm The Trade Desk would be added to the S&P 500. Trade Desk is taking the place of software maker Ansys, which was acquired by Synopsys in a deal that closed Thursday.
Hess’ departure comes just after Chevron completed its $54 billion purchase of the oil producer, prevailing against Exxon Mobil in a legal dispute over offshore oil assets in the South American nation of Guyana.
Block will officially join the S&P 500 before the opening of trading on July 23, according to a statement from S&P. Stocks often rally when they’re added to a major index, as fund managers need to rebalance their portfolios to reflect the changes.
Most alterations to the S&P 500 take place during the index’s quarterly rebalancing. However, in the case of the closing of an acquisition, a company can be removed from the index and replaced off schedule. Last week monitoring software company Datadog took Juniper Networks’ place in the S&P 500 as part of the index’s quarterly change.
Block’s addition brings further tech heft to an index that’s been steadily moving in that direction in recent years, reflecting the market cap gains of companies across the sector. Block, which gained popularity as Square due to the rapid growth of the company’s payment terminals, has expanded into crypto, lending and other financial services.
Founded by Jack Dorsey in 2009, Square changed its name to Block in 2021 to emphasize its focus on blockchain technologies.
Block shares are down 14% this year, underperforming the broader U.S. market. The Nasdaq is up more than 8%, while the S&P 500 has gained 7%. Still, with a market cap of about $45 billion, Block is valued well above the median company in the index.
In May, Block reported first-quarter results that missed Wall Street expectations on Thursday and issued a disappointing outlook, leading to a plunge in the stock price. Block’s forecast for the second quarter and full year reflected challenging economic conditions that followed sweeping tariff announcements by President Donald Trump.
“We recognize we are operating in a more dynamic macro environment, so we have reflected a more cautious stance on the macro outlook into our guidance for the rest of the year,” the company wrote in its quarterly report.
The company is scheduled to report second-quarter results after the close of regular trading on Aug. 7.
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