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Suntech Turns Off Lights to Support Earth Hour 2009
           Global Employees Join Call for Action on Climate Change

SAN FRANCISCO and WUXI, China, March 27 /PRNewswire-Asia/ -- Suntech Power Holdings Co., Ltd. (NYSE: STP), the world's largest photovoltaic (PV) module manufacturer, today announced that it will turn off lights of its solar headquarters in Wuxi, China from 8:30pm to 9:30pm on Saturday March 28, 2009 in support of WWF's Earth Hour campaign.

"Earth Hour sends a powerful message about the urgent need to protect the future of our planet through energy conservation and sustainable development," said Dr. Zhengrong Shi, Suntech's Chairman and CEO. "This is an opportunity to draw attention to climate change concerns and motivate people, businesses and governments to consider sustainable alternatives. There are many viable renewable energy solutions, such as solar, that can generate clean energy and mitigate greenhouse gas emissions and we should accelerate adoption of these solutions now."

Around 500 Suntech employees, customers, partners and government officials will hold an event themed "What do we do if the Earth has no electricity?" in front of the Suntech headquarters 1MW solar facade in Wuxi, China to support the Earth Hour campaign. The Suntech headquarters and nearby buildings will simultaneously turn off lights and conventional energy sources for 1 hour and rely only on green energy generated and stored from the solar facade. In addition, Suntech staff from global offices will also switch off lights at 8:30pm on March 28 to reduce their carbon footprint and enjoy the Earth without energy.

Suntech is committed to utilizing energy efficient technologies at home. Suntech's state of the art solar headquarters in Wuxi, China incorporates the world's largest on-grid photovoltaic facade system, with over 2,552 semi-transparent solar panels and an annual power output of over 1 million kilowatt hours of electricity. The solar energy produced will save over 600 tons of carbon emissions every year. In addition, the headquarters features energy efficient building materials, geothermal temperature control, movement sensor lighting and a comprehensive water recycling system.

"We are greatly encouraged to see that governments the world over are increasingly recognizing the importance of action to prevent climate change," added Dr. Shi. "China's new subsidy for building integrated solar solutions is an excellent example of this, and a strong demonstration of its commitment to improving energy efficiency and reducing carbon emissions." China's Ministry of Finance recently announced a subsidy of 20RMB per watt for building integrated solar systems above 50kW that will support the roll out of solar in China.

About Earth Hour

Earth Hour is a global WWF climate change initiative. The WWF-led campaign, organised in conjunction with Fairfax Media and award-winning advertising agency Leo Burnett, invites individuals, businesses, governments and communities to turn out their lights for one hour on Saturday March 28, 2009 at 8:30pm to show their support for action on climate change. The event began in Sydney in 2007, when 2 million people switched off their lights. In 2008, more than 50 million people around the globe participated. In 2009, Earth Hour aims to reach out to 1 billion people in 1,000 cities. For more information please visit .

About WWF

WWF is one of the world's largest and most respected independent conservation organizations, with almost five million supporters and a global network active in more than 100 countries. WWF's mission is to stop the degradation of the earth's natural environment and to build a future in which humans live in harmony with nature, by conserving the world's biological diversity, ensuring that the use of renewable natural resources is sustainable, and promoting the reduction of pollution and wasteful consumption.

About Suntech

Suntech Power Holdings Co., Ltd. (NYSE: STP) is the world's leading solar energy company as measured by production output of solar modules. Suntech designs, develops, manufactures, and markets premium-quality, high-output, cost-effective and environmentally friendly solar products for electric power applications in the residential, commercial, industrial, and public utility sectors. Suntech's patent-pending Pluto technology for crystalline silicon solar cells improves power output by up to 12% compared to conventional production methods.

Suntech also offers one of the broadest ranges of building-integrated solar products under the MSK Solar Design Line(TM). Suntech designs and delivers commercial and utility scale solar power systems through its wholly owned subsidiaries Suntech Energy Solutions and Suntech Energy Engineering and will own and operate projects greater than 10 megawatts in the United States through Gemini Solar Development Company, a joint venture with MMA Renewable Ventures. With regional headquarters in China, Switzerland and the United States and sales offices worldwide, Suntech is passionate about improving the environment we live in and dedicated to developing advanced solar solutions that enable sustainable development. For more information, please visit .

Safe Harbor Statement

This press release contains forward-looking statements. These statements constitute "forward-looking" statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and as defined in the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates" and similar statements, and includes the ability of the 1MW solar fa?ade to generate over 1 million kilowatt hours of energy per year and the amount of carbon emissions saved every year from the solar energy produced. Such statements involve certain risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Further information regarding these and other risks is included in Suntech's filings with the U.S. Securities and Exchange Commission, including its annual report on Form 20-F. Suntech does not undertake any obligation to update any forward-looking statement as a result of new information, future events or otherwise, except as required under applicable law.

For further information, please contact:

In China:

Rory Macpherson

Investor Relations Director

Tel: +86-21-6288-5574


In the United States:

Sanjay M. Hurry

Vice President

The Piacente Group, Inc. (Investor Relations Counsel, Suntech)

Tel: +1-212-481-2050


SOURCE  Suntech Power Holdings Co., Ltd.

    -0-                             03/27/2009
    /CONTACT:  In China: Rory Macpherson, Investor Relations Director,
+86-21-6288-5574,; or In the United States: Sanjay M.
Hurry, Vice President of The Piacente Group, Inc. (Investor Relations Counsel,
Suntech), +1-212-481-2050,
    /Web site:

CO:  Suntech Power Holdings Co., Ltd.

ST:  China

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