(EnergyAsia, June 10 2010, Thursday) — China Huaneng Group said it has signed an agreement to buy wind turbines from six domestic suppliers in a deal worth 8.06 billion yuan to meet rising demand for clean energy. (US$1=6.83 yuan). Huaneng said Sinovel Wind Group Co., Shanghai Electric Group, Dongfang Electric Corp., China Shipbuilding Industry Corp.,…