“All the data shows that EVs are just much, much less likely to set on fire than their petrol equivalent,” said Colin Walker, the head of transport at the Energy and Climate Intelligence Unit thinktank. “The many, many fires that you have for petrol or diesel cars just aren’t reported.”
In Norway, which has the world’s highest proportion of electric car sales, there are between four and five times more fires in petrol and diesel cars, according to the directorate for social security and emergency preparedness.
Australia’s Department of Defence funded
EV FireSafe to look into the question. It found there was a 0.0012% chance of a passenger electric vehicle battery catching fire, compared with a 0.1% chance for internal combustion engine cars.
Despite the increased danger once a battery fire is burning, the probability of being caught in an EV fire appears overall to be much lower than for petrol or diesel cars, based on currently available data – although this could change as more people get electric cars.
Walker said it was possible that the prevalence of fires in EVs could increase as the average age of batteries on the roads increases. However, at this point, it appears that they would have to multiply by many times to be worse than internal combustion engines.