Wal-Mart and the Cleantech Group come together in support of Cleantech initiatives

SAN FRANCISCO, February 26, 2008 -- The Cleantech Group, LLC, founders of the cleantech investment category, and Wal-Mart Stores Inc., with more than 4,000 stores nationwide, today unveiled the Cleantech Accelerator™ project at the Cleantech Forum® XVI in San Francisco. The Cleantech Accelerator connects cleantech companies to global organizations seeking to identify sustainable business solutions. As the first to adopt the Accelerator, Wal-Mart continues to lead the charge toward a more sustainable, clean economy.

Cleantech Accelerator will help bridge the gap between innovation and market adoption. Companies and corporations seeking new cleantech products and services will post requests for proposals (RFP) for sustainability projects on the Accelerator Web site. Cleantech companies can then search the RFP listings by category and submit for projects in their specific sectors, reducing the time and cost of finding viable projects. Serving as Wal-Mart’s primary advisor, the Cleantech Group will review submissions and make recommendations to Wal-Mart’s team.

"For the past six years, the Cleantech Group has supported the growth of the cleantech industry through our service offerings for investors and entrepreneurs. Now with our Accelerator program, we are able to leverage our breadth of industry knowledge and network in support of global corporations’ sustainability efforts," said Nicholas Parker, co-founder and chairman, Cleantech Group. "Wal-Mart, with its global presence and 61,000 supplier relationships, is an ideal partner for this pioneering effort, and we look forward to helping them achieve their sustainability goals."

Wal-Mart’s first seven key areas of opportunity for the Cleantech Accelerator are:

• Sustainable management of organic waste

• Sustainable management of oil-based waste

• Sustainable management of household hazardous waste

• Alternative battery technologies for forklifts

• Wind harvesting

• Sustainable building materials

• Closed-loop water processing

"As a company moving toward a more sustainable future, we see clean technologies playing a large role in how we get there," said Matt Kistler, senior vice president of Sustainability at Wal-Mart Stores, Inc. "With the Cleantech Accelerator project we hope to speed the progress of our sustainability programs and move quickly to incorporate new technologies that help us move toward our sustainability goals."

Wal-Mart has developed a number of company-wide initiatives to reduce its environmental footprint and mobilize associates, suppliers, communities and customers on its path toward sustainability.

To learn more about the Cleantech Accelerator please visit www.cleantech.com/accelerator

About Wal-Mart Stores, Inc. (NYSE: WMT)

• Wal-Mart Stores, Inc. operates Wal-Mart discount stores, Supercenters, Neighborhood Markets and Sam’s Club locations in the United States. The Company operates in Argentina, Brazil, Canada, China, Costa Rica, El Salvador, Guatemala, Honduras, Japan, Mexico, Nicaragua, Puerto Rico and the United Kingdom. The Company’s securities are listed on the New York Stock Exchange under the symbol WMT.

More information about Wal-Mart can be found by visiting www.walmartfacts.com. Online merchandise sales are available at www.walmart.com.

About Cleantech Group™, LLC

• The Cleantech Group, LLC provides insight, opportunities and builds relationships that catalyze and accelerate market adoption and commercialization of clean technologies globally. The Cleantech Group family of companies founded the cleantech investment category and through its membership services brings together investors, executives, thought leaders, policy makers, and entrepreneurs to facilitate the growth of cleantech globally. Visit http://www.cleantech.com.