Although electric vehicles are marketed as environmentally friendly vehicles, many claim that they actually pollute the environment more when one considers factors such as how electricity is being charged by their batteries.
But a new study published in Nature Sustainability says that in most cases, electric vehicles are more environmentally friendly.
According to the results of the survey, in 2015, an average electric vehicle had less overall emissions compared to an average gasoline vehicle, but that depends on how “green” the power grid is. In particular, the study found that on average, even the least efficient electric vehicles had less emissions than the highly efficient new petrol engines, when the grid “emission” was below 700 gCO2e kWh .
The research findings apply to 53 of the 59 regions of the world, representing 95% of road transport worldwide. Electric vehicles have on average 31% less emissions per kilometer compared to cars with gasoline engines. In 2015, emissions of electric vehicles were “almost always” lower than those of gasoline-powered vehicles in North America, in many parts of Africa and South America. However, electric vehicles had higher emissions than gasoline-powered vehicles in countries such as India, Poland and the Czech Republic.