FORT COLLINS, Colo., April 13, 2009—Advanced Energy Industries, Inc. (NasdaqGM: AEIS) will release first quarter 2009 financial results on Thursday, April 23, 2009. Management's quarterly company update will also be held on April 23, 2009, beginning at 3:00 p.m. Mountain Time/5:00 p.m. Eastern Time.

To participate in the live conference call, dial (888) 713-4717 approximately five minutes prior to the start of the meeting, and an operator will connect you. International participants should dial (816) 650-2836. All participants will need to provide the operator with the conference pass code 94779571 which has been reserved for this call.

A live and archived webcast of the call will also be available on the company’s website. To access the webcast, visit the Investor Relations section of Advanced Energy’s corporate website at http://ir.advanced-energy.com, and link to the Q109 Webcast on the Investor Relations Home Page. The archived webcast will be available at the same location approximately two hours following the end of the live event.

A telephone replay will be available for 48 hours following the webcast. To access the replay, dial (800) 642-1687 or (706) 645-9291 and enter conference pass code 94779571.

Advanced Energy develops innovative power and control technologies that drive high-growth, plasma thin-film manufacturing processes worldwide, including semiconductors, flat panel displays, data storage products, solar cells, architectural glass, and other advanced product applications. Advanced Energy also develops grid connect inverters for the solar energy market.

AE is a publicly held company traded on Nasdaq Global Market under the symbol AEIS. For more information, go to http://www.advanced-energy.com.