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Continue to ChatYingli Awarded "TUV Rheinland Star for 2015 PV Module Energy Yield" At Recent TUV Rheinland Solar Congress 2016 https://cleantechnica.com/2016/05/14/yingli-awarded-tuv-rheinland-star-2015-pv-module-energy-yield-recent-tuv-rheinland-solar-congress-2016/