The Norwegian Automobile Federation conducted a winter test of 20 EVs and concluded they have a range loss of close to 20 percent in winter conditions and charge slower

Norwegian Automobile Federation »

The Norwegian Automobile Federation (NAF) has tested the range and charge time of popular electric vehicles in winter conditions. 20 vehicles were driven until they stopped completely and shut down, to measure their real world range.

  • EVs don’t suddenly shut down when they run out of power. Drivers are given several warnings and can maintain regular speed until the very last miles.
  • EVs on average lose 20 percent of their range in colder climate.
  • EVs charge more slowly in cold temperatures.

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NAF collected 20 of the best-selling electric car models you can buy from Norwegian dealerships as of January 2020.

The test focused on range, consumption and charging time. To test all the cars equally, the test drive was performed without preheating of neither cabin nor battery. All cars drove the same route on the same day, with similar style of driving, and climate control settings.

The test route consisted of city driving, highways and country roads in speeds from 60 kmh (37 mph) to 110 kmh (68 mph). All the cars had one climb through a mountain pass. The longest running cars climbed two mountain passes.

Cars tested »

See the full results of the test at the NAF site, including test results for each individual car.


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Gustavo Henrique Ruffo at InsideEVs provides his views »

The tests started in Oslo and ended in Hafjell, which is normally a 200 km (124 mi) journey, but the evaluation extended that route to 482 km (300 mi) to cope with the cars with more range. They went through city and highway driving and at least a mountain pass. Speeds ranged from 60 km/h (37 mph) to 110 km/h (68 mph). The idea was to run the EVs until the battery was completely discharged.

NAF also performed a charging test from around 10 percent to a minimum of 80 percent of charge. It was conducted at -2ºC (28.4ºF), and all cars were driving for at least two hours to ensure their batteries were warm.

The first thing the association discovered was that the tested EVs present around 18.5 percent less range than their manufacturers state on WLTP. The worst one was in this was the Opel Ampera-e, a car that you are more used to calling Chevy Bolt. With a WLTP range of 423 km, it managed to run only 296.9 km, or 29.81 percent less.  […]