Ticker Symbol 'HEV' FORT LAUDERDALE, Fla., May 7 /PRNewswire-FirstCall/ -- Ener1, Inc. (AMEX:HEV), an energy storage solutions company today announced that the Company has been approved for listing its Common stock on The American Stock Exchange (AMEX). Its common stock will begin trading on the AMEX under the new ticker symbol "HEV" effective at the market open on Thursday, May 8th, 2008. (Logo: http://www.newscom.com/cgi-bin/prnh/20080312/CLW018LOGO ) The approval for listing on the AMEX is contingent upon the Company being in compliance with all applicable listing standards on the date it begins trading on the AMEX, and may be rescinded if the Company is not in compliance with such standards. Charles Gassenheimer, Chairman of Ener1, Inc. stated, "We strongly believe in the importance of the milestones that we have set out for the Company, and this marks yet another important milestone that Ener1 has delivered upon. We are very proud to be associated with the American Stock Exchange, which has become an important exchange for energy and energy related trading. We feel that the AMEX listing will enable Ener1 to have more visibility with the global investment community as well as increased liquidity for our stock, all to the benefit of our current shareholders, future investors and the Company as a whole." About Ener1, Inc. Ener1, Inc. (AMEX:HEV) is an energy storage solutions company that is developing and commercializing advanced, high-performance safe lithium-ion (Li-ion) batteries for hybrid electric vehicles (HEVs), plug-in HEVs (PHEVs) and electric vehicles (EVs). Ener1 is also developing commercial fuel cell products through its EnerFuel subsidiary and nanotechnology-based materials and manufacturing processes for batteries and other applications through its NanoEner subsidiary. For more information, visit http://www.ener1.com/ and http://www.enerdel.com/ or call (212) 920-3500. Contact Rachel Carroll VP Corporate Communications P: 212 920 3500*105 E: http://www.newscom.com/cgi-bin/prnh/20080312/CLW018LOGO http://photoarchive.ap.org/ DATASOURCE: Ener1, Inc. CONTACT: Rachel Carroll, VP Corporate Communications of Ener1, Inc., +1-212-920-3500*105, Web site: http://www.ener1.com/ http://www.enerdel.com/

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