June 18, 2008

Orion Energy Systems VP to Speak At National Energy-Efficiency Summit; Heins Among Notables Addressing Energy Management and Demand Response At Two-Day Event

MANITOWOC, Wis., June 18, 2008 (PRIME NEWSWIRE) -- Steve Heins, vice president of communications and governmental affairs for Orion Energy Systems Inc. (Nasdaq:OESX), will speak at the 2008 Demand Response and Energy Efficiency National Summit hosted by Electric Utility Consultants Inc. (EUCI).

The summit will be held June 24 and 25 in San Diego. The event, which attracts energy professionals from across North America, will address energy efficiency, energy management and their positive effect on the environment.

In his presentation at 8:50 a.m. on June 25, Heins will address the emission trading protocol for energy efficiency including emission reductions, measurement and verification requirements, and trading logistics.

"I am honored to speak at the 2008 Demand Response and Energy Efficiency National Summit," Heins said. "Energy efficiency can greatly reduce our dependence on fossil fuels. Orion Energy Systems has been working diligently to promote energy efficiency as an alternative to rising costs through the use of its products, which reduce energy without compromise."

Heins focuses on advocacy and education for Orion, promoting energy efficiency at the local, state and national levels. He is a frequent speaker and has published more than three dozen articles and op-ed pieces related to energy management, the utility industry and environmental issues for leading publications including the San Diego Union Tribune, Milwaukee Journal Sentinel, Engineering Times, Energy and Power Management, EnergyPulse and Electricity Today.

In addition to Heins, speakers at the summit include representatives from the California Energy Commission, XCEL Energy, Alliant Energy and the Southeast Energy Efficiency Alliance.

Founded in 1987, EUCI is a leading provider of conferences, seminars, workshops and courses designed exclusively for the energy industry. EUCI seeks to create a forum for professional communication and exchange of knowledge and ideas among the energy industry professionals and others.

Those interested in attending the conference can register and get more information by visiting www.euci.com.

Orion has deployed its energy management systems in 3,655 facilities across North America. Since 2001, Orion technology has displaced more than 334 megawatts, saving customers more than $351 million and reducing indirect carbon dioxide emissions by 4.4 million tons.

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 systems, controls and related services for commercial and industrial customers without compromising their quantity or quality of light. For more information, visit www.oriones.com.

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

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 CONTACT: Orion Energy Systems Inc.          Media:          Linda Diedrich, Director Corporate Communications          920-482-1988          [email protected]