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

Date: Thursday, February 23, 2012Time: 5:00 p.m. Eastern (4:00 p.m. Central/2:00 p.m. Pacific)

Access by conference call:

Domestic callers: Dial (877) 754-5294International callers: Dial (678) 894-3013

Access by webcast:

Go to the Investor Relations section of Orion Energy Systems' website 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 February 28, 2012. The replay can be accessed by dialing (800) 585-8367. The replay pass code for callers is 51927486.

Orion Energy Systems, Inc. (NYSE Amex:OESX) is a leading power technology enterprise that designs, manufactures and deploys 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 quantity and quality of light. For more information, visit www.oesx.com.