Orion Energy Systems Sets Conference Call and Webcast for Second Quarter Fiscal 2010 Financial Results

Orion Energy Systems Inc. (Nasdaq:OESX), a leading power technology enterprise, announced today that it will hold its quarterly conference call for investors and analysts on Tuesday, Oct. 27 at 5:30 p.m. Eastern (4:30 p.m. Central). The earnings announcement is scheduled for release at 5 p.m. Eastern. Orion's Chief Executive Officer, Neal Verfuerth; President and Chief Operating Officer, James Kackley; and Chief Financial Officer, Scott Jensen, will host the conference call.

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

 Date:  Tuesday, Oct. 27, 2009

 Time:  5:30 p.m. Eastern

Access by conference call:

 Domestic callers: Dial 888-576-4398
 International callers: Dial 719-325-2103

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 Nov. 3, 2009. The replay can be accessed by dialing 888-203-1112. International callers should dial 719-457-0820. The replay pass code for all callers is 8227647.

About Orion Energy Systems, Inc.

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 platforms, intelligent wireless control systems and direct renewable solar technology for commercial and industrial customers without compromising their operations. 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.

CONTACT:  Orion Energy Systems
Scott Jensen, Chief Financial Officer
(920) 482-5454
FD
Victoria Paris
(312) 553-6715

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