How Psychology Cuts The Range of An Electric Car by 25%

Published: 28-Feb-2014

There are two primary takeaways from a recent study of electric-vehicle driving habits in Germany. One: an electric vehicle with 25 percent of its battery charge left creates the same reaction in drivers as the fuel needle on "E" in a gas-powered car. Two: familiarity breeds comfort.

The study, conducted by Germany's Technische Universität Chemnitz and funded by the German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety, put some real numbers on the concept of "range anxiety." According to Green Car Congress, that anxiety truly kicks in when there's less than a quarter of the driving range left on an EV's battery and the study found that a typical car's range is "shortened" by a 20 to 25 percent "psychological safety buffer." If we take the popular Nissan Leaf as an example, the official 84-mile single-charge range is really closer to 63 miles in the head of the driver.

The longer the driver spent in the EV, the shorter his mental buffer became.

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