Ener1, Inc. Announces Date for First Quarter 2008 Results and Management Conference Call

FORT LAUDERDALE, Fla., May 6, 2008 -- Ener1, Inc. (BULLETIN BOARD: ENON) will release its first quarter results for 2008 on Monday, May 12, 2008 before the market open. Management will conduct a conference call on the same day, Monday, May 12, 2008, at 10:00 a.m. Eastern Daylight Time, to discuss the first quarter results and the company's strategic outlook for 2008

The call is being webcast by Thomson Financial and can be accessed on the home page of Ener1's website at http://www.ener1.com/.

To participate in the conference call, please dial (888) 713-4215 from within the United States, or (617) 213-4867 from outside the United States. The participant pass code is 32064303.

Participants are urged to dial into the call at least ten minutes prior to the call to register, or may pre-register for the call at: https://www.theconferencingservice.com/prereg/key.process?key=PV3MMYLTF

Pre-registrants will be issued a pin number to use when dialing into the live call which will provide quick access to the conference and will bypass the operator upon connection.

A recording of the call will be available until May 19, 2008. To access the recording, please dial (888) 286-8010 from within the United States, or (617) 801-6888 from outside the United States. The participant pass code is 96410734.

About Ener1, Inc.

Ener1, Inc. (OTCBB: ENON) is leading the North American development and commercialization of 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 ENER1