Yingli Green Energy Achieves Outstanding Performance in PHOTON Module Yield Test 2012

Ranks Top 3 among Leading Module Manufacturers in Outdoor Field Testing

BAODING, China, April 19, 2013 Yingli Green Energy Holding Company Limited (NYSE: YGE) (“Yingli Green Energy” or the “Company”), a leading solar energy company and one of the world’s largest vertically integrated photovoltaic (“PV”) manufacturers, which markets its products under the brand “Yingli Solar,” today announced that the Company ranked third among ninety well-known manufacturers worldwide in the PHOTON Module Yield Test 2012 (the “Test”) conducted from January 1, 2012 to December 31, 2012.

At the PHOTON outdoor test field in Aachen, Yingli Green Energy’s flagship multicrystalline module (the YGE 60 Cell Series, YL240P-29b) generated an annual yield of 1,118.7 kilowatt-hours per kilowatt. According to the test result, the performance ratio of Yingli Green Energy’s module reached 93.1% and exceeded that of the winner from the same test in 2011 by 2.8%. This performance ratio indicates what percentage of the incoming solar irradiance converts into electricity and determines the ranking in the Test.

The 60 Cell Series that was tested is technically and materially similar to other popular multicrystalline product lines, including the Company’s 48 Cell Series for residential, the utility-scale module lines, YGE 72 Cell Series and YGE U-Series, as well as YGE-Z Series (with a proprietary Zep Solar frame).

“We’re pleased to have achieved such top results, which validates that Yingli modules perform exceptionally well in the field,” said Dr. Dengyuan Song, Chief Technology Officer of Yingli Green Energy. “As we stay committed to technology innovation and quality control, we are focused on continuously enhancing the performance of our products and delivering reliable modules to our customers worldwide.”

For further information about the test, visit www.photon.info/laboratory.

About Yingli Green Energy

Yingli Green Energy Holding Company Limited (NYSE: YGE), which markets its products under the brand “Yingli Solar,” is a leading solar energy company and one of the world’s largest vertically integrated photovoltaic manufacturers. Yingli Green Energy’s manufacturing covers the entire photovoltaic value chain, from the production of polysilicon through ingot casting and wafering, to solar cell production and module assembly. Yingli Green Energy currently maintains a balanced vertically integrated production capacity of 2,450 MW per year at its production facilities located in Baoding, Haikou, Tianjin and Hengshui. Yingli Green Energy distributes its photovoltaic modules to a wide range of markets, including Germany, Spain, Italy, Greece, France, South Korea, China and the United States. Headquartered in Baoding, China, Yingli Green Energy has more than 20 subsidiaries and branch offices worldwide. Yingli Green Energy is publicly listed on the New York Stock Exchange (NYSE: YGE). For more information, please visit www.yinglisolar.com .

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