THE 2014 Ninth International Conference on Ecological Vehicles and Renewable Energies (EVER2014) was hosted by the principality of Monaco, in the Grimaldi Forum, on March 25–27, 2014. EVER2014 was a forum for specialists coming from both universities and industries, who are involved in Research and Development projects in the areas of ecological vehicles or renewable energies. Attendees had the opportunity to share their scientific, technical, business, and social experiences with other participants from 35 countries. The conference received up to 205 extended abstracts. The final program included 139 presentations, yielding a final acceptance rate of 68%. This special e-book of COMPEL includes extended and improved versions of selected papers presented at EVER2014.