MANITOWOC, Wisc., Jan 28, 2008 (PrimeNewswire via COMTEX News Network) -- Orion Energy Systems (Nasdaq:OESX) rang out a most memorable year in a most memorable way. With four generations of family as well as company management members on hand, Neal Verfuerth, Orion CEO and founder (under "IO" in the photo) rang the closing trading bell for 2007 on December 31, at 4:00 p.m. Orion joins just three other Wisconsin companies to ring the NASDAQ bell in the last two years. Orion has facilities in Plymouth and Manitowoc, WI.

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The event celebrated the fact that Orion stock (OESX) began trading publicly on the NASDAQ exchange December 19 in a $100 million Initial Public Offering (IPO). Since the IPO, in which Orion stock was initially priced at $13, Orion stock has ranged between $22.46 and $15.25 per share. Thomas Weisel Partners LLC acted as the sole book-running manager for the offering and Canaccord Adams Inc. and Pacific Growth Equities, LLC acted as co-managers for the offering.

The event was held at the NASDAQ's site on Times Square, 43rd and Broadway, New York City. The closing bell event was carried live on Bloomberg, Bloomberg Brazil, CNBC, Fox, Fox Business News, CNBC Asia, CNN International, and Itsaboutfinance.com.

Orion Energy Systems, Inc. (Nasdaq:OESX) is an energy management company with a track record of delivering sustainable energy savings. Orion designs, manufactures and deploys energy efficient lighting systems and controls to commercial and industrial companies. Orion's technology displaces base and peak load capacity at a lower cost than traditional generation while providing sustainable financial, workplace and environmental benefits. Through September 30, 2007, Orion has deployed energy management systems in 2,100 facilities across North America, including 78 of the Fortune 500 companies, resulting in a cost savings of $265 million, a reduction of base and peak load electricity demand by 278 megawatts, and indirect carbon dioxide emissions by 3.4 million tons. To learn more about Orion Energy Systems visit www.oriones.com.

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The photo accompanying this release is also available at Newscom, www.newscom.com, and via AP PhotoExpress.

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SOURCE: Orion Energy Systems, Inc.

Orion Energy Systems
         Linda Diedrich, Director - Corporate Communications
         (920) 482-1988
         ljd@oes1.com
         2001 Mirro Drive
         Manitowoc, WI 54220

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