MANITOWOC, Wis., Jan 20, 2009 (GlobeNewswire via COMTEX News Network) -- Orion Energy Systems Inc. (Nasdaq:OESX), a leading energy management company, announced today that it will hold its quarterly results conference call for investors and analysts on Tuesday, February 3 at 4:30 p.m. Central. Orion's Chief Executive Officer, Neal Verfuerth, Chief Financial Officer, Scott Jensen, and Chief Operating Officer, Erik Birkerts, will host the conference call.

The details of the webcast and conference call are as follows:

 Date: Tuesday, February 3, 2009

 Time: 4:30 p.m. Central

 Access by conference call:
 Domestic callers: Dial 877-741-4251
 International callers: Dial 719-325-4754

Access by webcast:

Go to the Investor Relations section of Orion Energy Systems Web site at http://investor.oriones.com/events.cfm for a live webcast link. To ensure a timely connection, it is recommended that users register at least 15 minutes prior to the scheduled webcast.

An audio replay of the earnings conference call will be available shortly after the call and will remain available through Thursday, February 12, 2009. The replay can be accessed by dialing 888-203-1112. International callers should dial 719-457-0820. The replay passcode for all callers is 2895483

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.oesx.com.

The Orion Energy Systems, Inc. logo is available at http://www.globenewswire.com/newsroom/prs/?pkgid=4540

This news release was distributed by GlobeNewswire, www.globenewswire.com

SOURCE: Orion Energy Systems, Inc.

Orion Energy Systems
          Erik G. Birkerts
          (920) 482-1924

          FD Ashton Partners
          Victoria Paris
          (312) 553-6715

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