The worldwide electrification of transportation has grown rapidly through recent years. The global electric-vehicle (EV) stock was about 180,000 by the end of 2012. This number grew by 3.7 times, reaching more than 665,000 through the end of 2014 per IEA (International Energy Agency) Global EV Outlook reports. The report forecasts that by 2020, approximately 20 million EVs will be on the road....
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