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SunEdison and Developers Diversified Realty Celebrate the Activation of National Rooftop Solar Program

SunEdison and Developers Diversified entered into a partnership last year that gives SunEdison the rights to deploy solar energy systems at more than 130 shopping centers throughout the United States. The five projects in Princeton, Hamilton and Union mark the first of many in Developers Diversified's portfolio that are being considered for solar power generation. Through SunEdison's REIT Solar Program, Developers Diversified will purchase the energy produced for common area usage while earning revenue on the leased roof space for solar power production. In addition, the shopping center tenants can benefit by opting to purchase the power generated through the program.

"There are significant environmental benefits realized by producing renewable energy without generating noise, pollution, or greenhouse gases," said Marc Feldman, senior vice president of new business development for Developers Diversified. "Our tenants also benefit because we are able to reduce energy expenditures for the common areas of the shopping center and provide them with the opportunity to purchase the power generated. Plus we increase our operating income by leasing our roof space for solar power hosting."

There are eight projects in New Jersey that are currently active or under construction. Once these regional sites are all active they will generate approximately 1.4 million kWh of solar energy in the first year. Over 20 years, the sites will generate approximately 26 million kilowatt-hours, enough energy to power over 2,400 homes for one year.

" PSE&G developed the solar loan program to help finance the construction of new solar capacity in New Jersey. Not only does this have a positive environmental impact, it also helps New Jersey businesses stay competitive in these tough economic times. We are pleased to have played a role in helping to bring solar to Developers Diversified, together with SunEdison," said Susanna Chiu, Director of Business Development for PSE&G.

"SunEdison continues to lead the way in delivering solar solutions to our clients that add value on day one," said Jaime A. Smith, Vice President of Sales for SunEdison. "By utilizing the best technologies, and working with outstanding partners such as DDR, we can provide innovative solutions that make solar energy work."

About Developers Diversified Realty

Developers Diversified owns and manages approximately 665 retail operating and development properties in 44 states, Brazil, Canada and Puerto Rico. Totaling more than 147 million square feet, the Company's shopping center portfolio features open-air, value-oriented neighborhood and community centers, mixed-use centers and lifestyle centers located in prime markets with stable populations and high-growth potential. Developers Diversified is the largest landlord in Puerto Rico and owns a premier portfolio of regional malls in and around Sao Paulo, Brazil. Developers Diversified is a self-administered and self-managed REIT operating as a fully integrated real estate company. Additional information about the Company is available on the Internet at www.ddr.com.

About SunEdison

SunEdison is North America's largest solar energy services provider. The company finances, installs and operates distributed power plants using proven photovoltaic technologies, delivering fully managed, predictably priced solar energy services for its commercial, government and utility customers. In 2008, SunEdison delivered more kilowatt hours (kWh) of energy than any other solar services provider in North America. For more information about SunEdison, please visit www.sunedison.com

About MEMC

MEMC is a global leader in the manufacture and sale of wafers and related intermediate products to the semiconductor and solar industries. MEMC has been a pioneer in the design and development of wafer technologies over the past 50 years. With R&D and manufacturing facilities in the U.S., Europe and Asia, MEMC enables the next generation of high performance semiconductor devices and solar cells. With the acquisition of SunEdison, MEMC is now a developer of solar power projects and North America's largest solar energy services provider. MEMC's common stock is listed on the New York Stock Exchange under the symbol "WFR" and is included in the S&P 500 Index. For more information about MEMC, please visit www.memc.com.

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SunEdison
Brad Oswald
443-909-7200
boswald@sunedison.com
or
Developers Diversified Realty
Scott Schroeder
Vice President of Marketing & Corporate Communications
216-755-5500
or
MEMC Electronic Materials, Inc.
Bill Michalek
Director, IR & Corporate Communications
636-474-5443