For more information, contact:

Jessi Lord Marketing Communications Manager AE Solar Energy +1.541.323.4185 jessica.lord@aei.com

Jason Morris or Heather Craft Media Contacts Schwartz MSL +1.415. 512.0770 aesolarenergy@schwartzmsl.com

Company’s Commercial Inverters Selected to Meet Unique System Design Requirements

FORT COLLINS, Colo., Mar. 13, 2012—Advanced Energy Industries, Inc. (Nasdaq:AEIS), today announced that its inverters have been selected by REgeneration Finance (REgeneration) to power more than eight megawatts (MW) of US distributed generation photovoltaic (PV) projects. REgeneration has deployed more than 60 of Advanced Energy’s (AE) industry-leading commercial inverters, ranging in power levels from 35kW to 260kW. AE Solar Energy’s PV inverters were selected for their ability to meet the unique design and system size requirements of each project.

“Advanced Energy has proven to be an excellent equipment partner for REgeneration Finance,” said Adam Larner, vice president of engineering and operations at REgeneration Finance. “AE’s wide variety of inverter types and sizes have given us an exceptional ability to design our projects to fit our customers’ unique needs. We look forward to working with AE on many future projects.”

The inverters are being used at three school district projects developed by REgeneration: the 3 MW Douglas County School District project in Douglas County, Colorado; the 3.26 MW Buckeye Elementary School District project in Buckeye, Arizona; and Constellation Energy’s 4.29 MW Buckeye Union High School District project. Each project consists of multiple installations, which in-turn will provide the school districts with a significant portion of their energy needs.

“Schools are large consumers of energy and have operating budgets that are continually growing. We are excited to be working with REgeneration Finance on these projects, as the PV installations will reduce each district’s energy bill and protect them from rising utility rates,” said Gordon Tredger, executive vice president for AE Solar Energy. “We look forward to working closely with REgeneration as they work to drive further adoption of clean renewable solar at schools nationwide.”

In total, the projects will use 61 of AE Solar Energy’s industry-leading commercial inverters, which offer a wide range of inverter sizes for optimal stringing and design flexibility. The commercial inverters also set the industry standards in efficiency, high reliability, ease of installation and lifetime maintainability. The highly integrated systems save commercial installers time and money with best-in-class efficiency and the widest voltage window operating range with the lowest standard maximum power point tracking (MPPT) voltage of any three-phase inverter in the industry.

AE’s solar energy business delivers highly reliable inverters, complimentary Balance of System (BoS) products, and robust Operations and Maintenance (O&M) services that allow its customers to secure more solar projects and increase their earnings. AE Solar Energy enables utility scale, commercial, and residential solar project stakeholders to offer system owners a lower levelized cost of energy and confidence that their PV system will deliver on long-term production goals. With more than 30 years of leadership in delivering innovative energy solutions, combined with a legendary reputation for customer service, AE is a trusted partner to solar project developers, financiers and beneficiaries around the globe.

About Advanced Energy

Advanced Energy (Nasdaq:AEIS) is a global leader in reliable power conversion solutions used in thin-film plasma manufacturing and solar energy 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.

About REgeneration Finance

REgeneration Finance is an experienced developer of photovoltaic energy systems, providing solar power to municipal, commercial and non-profit entities. Through a financial structure that fully utilizes various federal and state benefits, REgeneration Finance allows its clients to receive all the financial and social benefits of renewable energy, including lowering their cost of electricity and reducing their carbon footprint, with no initial capital investment. Its customers typically receive substantial savings over what they would have otherwise paid to their respective utilities. REgeneration Finance is a full service financing partner, capable of providing its projects with construction and term debt, and tax equity investment. For more information please contact Nick Stoker at nick.stoker@regenerationfinance.com or at (914) 777-2224 x3417.