CleanTech

The Devil is always in the details. It is being widely reported on the web that a new University of Tennessee study by Chris Cherry, assistant professor in civil and environmental engineering, and graduate student Shuguang Ji shows that, when electric cars are charged by grid power where the energy mix is 90% coal, they are more polluting than petrol vehicles. But when we take a careful look at the study, several clarifications come to light that tend to discredit the study and marginalize the results.