Orion Energy Systems to Present at Merriman Capital's Investor Summit


MANITOWOC, Wis., Nov. 2, 2010 - Orion Energy Systems Inc. (NYSE Amex:OESX), a leading power technology enterprise, announced today that its Chief Executive Officer Neal Verfuerth and its Chief Financial Officer Scott Jensen, will present at Merriman Capital's 7th annual Investor Summit in New York City on November 16, 2010.

Verfuerth and Jensen will address institutional investors on that day at 10:30 a.m. Eastern (9:30 a.m. Central/7:30 a.m. Pacific). A live audio webcast of Orion's presentation will be available through the company's website at http://investor.oriones.com/events.cfm.

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 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. Follow us on Twitter, Facebook or YouTube.

CONTACT:

Orion Energy Systems, Inc.

Investor Relations Contact

Scott Jensen,

Chief Financial Officer

(920) 892-5454

sjensen@oesx.com

Mike Harris,

Vice President - Investor Relations

(920) 892-5412

mharris@oesx.com

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