For more information, contact:

Danny Herron Advanced Energy Industries, Inc. 970.407.6570 danny.herron@aei.com

Annie Leschin/Vanessa Lehr Advanced Energy Industries, Inc. 970.407.6555 ir@aei.com

Advanced Energy Industries CEO to Ring The NASDAQ Stock Market Opening Bell

FORT COLLINS, Colo., Nov. 18, 2011—Advanced Energy Industries, Inc. (Nasdaq:AEIS) will visit the NASDAQ MarketSite in New York City's Times Square. In honor of the occasion, CEO Garry Rogerson, CFO Danny Herron, and Thin-Films Business Unit President Yuval Wasserman will ring the Opening Bell.

Where: NASDAQ MarketSite – 4 Times Square – 43rd & Broadway – Broadcast Studio
When: Monday, November 21st, 2011 – 9:15 a.m. to 9:30 a.m. EST

About Advanced Energy

Advanced Energy (Nasdaq:AEIS) is a global leader in innovative power and control technologies for high-growth, thin-film manufacturing and solar-power generation. Founded in 1981, Advanced Energy is headquartered in Fort Collins, Colorado, with dedicated support and service locations around the world. For more information, go to www.advanced-energy.com.