(ADPnews) - May 26, 2011 - Huaneng Renewables, a unit of China Huaneng Group, has set a price range of HKD 2.28 (USD 0.29/EUR 0.21) to HKD 2.98 a share in its initial public offering (IPO) of 2.49 billion shares in Hong Kong, South China Morning Post reported.