Do Canadian Winters Really Kill Electric Vehicles? Experts Weigh In on Cold-Weather Concerns

A growing number of Canadians are warming up to the idea of electric vehicles but many still believe the country’s brutal winters are a deal-breaker. New research is shedding light on what’s myth and what’s legitimate concern, and the answer, as it turns out, is somewhere in between.

According to the latest Canada Electric Vehicle Consideration Study released by J.D. Power, 34 per cent of new-vehicle shoppers surveyed said they were “very likely” or “somewhat likely” to consider an EV for their next purchase. That’s up from 28 per cent just a year ago and marks the first meaningful rise in EV consideration since 2022. The turnaround comes shortly after Ottawa rolled out fresh consumer rebates on select electric and plug-in hybrid vehicles in February.

But enthusiasm only goes so far. The same survey which polled roughly 5,000 Canadians identified as new-vehicle shoppers between March and April found that cold-weather performance remains a stubborn sticking point. More than half of those unlikely to consider an EV, 54 per cent, cited concerns about how the vehicles hold up in extreme temperatures. Range anxiety topped the list of hesitations at 65 per cent, followed closely by worry over charging infrastructure at 56 per cent. Notably, purchase price has dropped off the top tier of concerns a sign that incentives may be doing their job, even as deeper doubts linger.

“For most shoppers, the deciding factors remain everyday practicality: how far they can drive on a charge, whether charging is reliably available when needed, and how EVs perform in Canadian winters,” said J.D. Ney, managing director at J.D. Power Canada.

The short answer: EVs do lose range in cold weather more so than conventional gas vehicles. But experts say the full picture is more nuanced than the fear suggests.

Olivier Trescases, a professor of electrical and computer engineering at the University of Toronto and director of the university’s Electric Vehicle Research Center, confirms that cold temperatures do pose real challenges. But he’s quick to add context.

“At minus seven degrees Celsius a common benchmark for comparison a combustion engine vehicle might lose about 15 per cent of its efficiency,” Trescases explained. “An EV, on the other hand, could lose closer to 30 per cent. So yes, roughly double the range loss.”

That gap widens as temperatures fall further. Below minus 20, some EVs can hemorrhage as much as 40 per cent of their range a sobering figure for anyone living in Canada’s colder interior regions.

What’s behind those numbers? Trescases points to something that might surprise drivers: it’s not just the battery struggling against the cold. A significant chunk of that range loss comes down to cabin heating.

“EVs are a victim of their own efficiency,” he said. “The main culprit for range loss in the winter is actually just the heat you need for the cabin. A gas engine produces enormous amounts of waste heat that you basically get for free. An EV has to draw from the battery.”

That said, Trescases stresses this is a known and manageable limitation. “It’s predictable and it should not be a surprise. The EV tells you how much range it has, and you can plan for it.”

Range loss is not the only cold-weather complication. Fast-charging an EV when the battery is at or below freezing can be significantly slower or, in some cases, not possible until the battery warms up.

“If your battery is sitting below freezing, it will not fast charge,” Trescases said. “It has to be heating while you’re driving, or generally unless you’re parked overnight and plugged in, the battery could be very cold.”

This is an important consideration for drivers who rely on public fast-chargers during road trips in winter months. Pre-conditioning warming the battery while the car is still plugged in at home is widely recommended and supported by most modern EVs, but it requires planning and access to a home charger.

While winter grabs most of the headlines in Canada, Trescases notes that extreme summer heat brings its own set of EV complications though they manifest differently.

“In very hot climates, the issue is not so much range loss, it’s more that the battery degrades accelerated aging, if you will,” he said. Air conditioning places similar demands on the battery as winter heating, though the more significant long-term concern is premature deterioration of battery cells in sustained high heat.

Despite all the caveats, Trescases maintains that for most Canadians, an EV is already a practical and sensible choice provided expectations are properly calibrated.

“Canada is a cold country,” he acknowledged. “For the majority of Canadians, I think an EV very much can meet their needs. But for some, they have to wait for better batteries, longer range, better technology and that is certainly coming in the pipeline.”

He also argues that today’s EVs are far better at accurately predicting available range, which itself goes a long way toward easing anxiety.

“If you know what you’re getting, and you somehow get stranded at the side of the road, then it’s just your own neglect,” he said. “It’s like ignoring the fuel gauge in your gas car. You do that at your own peril.”

The message from researchers and the data alike is consistent: cold weather is a real factor, not a myth, but it is a manageable one. For urban commuters and those with access to home charging, the case for an EV remains strong even in January. For those in remote areas, or who regularly drive long distances in deep-freeze conditions, the technology may not yet be quite there.

Either way, the conversation is no longer about if EVs belong in Canada but when and for whom.