Aug 01, 2013 · Cai (2008) projected the share to be 12%–15% by 2020, while the IEA (2008) projected it to be 11.0% by 2030; however, these levels are still lower than the 2008 levels of 20% and 30% for Japan and the United States, respectively . 1.2. Initiatives of electric vehicles (EVs) development in China