Orion Energy Systems, Inc. (OESX) Chief Executive Officer to Ring the NASDAQ Stock Market Opening Bell


ADVISORY, April 21, 2008 (PRIME NEWSWIRE) --



 What:
 Neal Verfuerth, Chief Executive Officer of Orion energy Systems, Inc.
 (OESX), will preside over the opening bell.

 Where:
 NASDAQ MarketSite - 4 Times Square - 43rd and Broadway - Broadcast Studio

 When:
 Tuesday, April 22, 2008 at 9:30 a.m. ET

 Contacts:
 Linda Diedrich
 920.482.1988
 ljd@oes1.com

 Brian Knox
 414.276.6237
 bknox@zeppos.com

 NASDAQ MarketSite:
 Robert Madden; 646.441.5045
 Robert.Madden@NASDAQOMX.com

Feed Information:

The Opening Bell is available from 9:20 a.m. to 9:35 a.m. on Galaxy 26 - uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can also be found on Waterfront fiber 1623. If you have any questions, please contact Robert Madden at (646) 441-5045.

Radio Feed:

An audio transmission of the Opening Bell is also available from 9:20 a.m. to 9:35 a.m. on uplink IA6 C band / transponder 24, downlink frequency 4180 horizontal. The feed can be found on Waterfront fiber 1623 as well.

Webcast:

A live webcast of the NASDAQ Opening Bell will be available at: http://www.nasdaq.com/about/marketsitetowervideo.asx.

Photos:

To obtain a hi-resolution photograph of the Opening Bell, please go to http://www.nasdaq.com/reference/marketsite_events.stm and click on the market open of your choice.

About Orion Energy Systems, Inc. (OESX):

Orion Energy Systems, Inc. (Nasdaq:OESX) is a leading power technology enterprise that designs, manufactures and implements energy management systems, consisting primarily of high-performance, energy efficient lighting systems and controls and related services, for commercial and industrial customers without compromising their quantity or quality of light. For more information, visit www.oriones.com.