Xinhua: Wind-power plants are drawing increasing investment in China, statistics from the United Nations Environment Programme (UNEP) have shown. Investment in the country’s sustainable energy sector grew by 91 percent last year to a record high of $10.8 billion, most of which has flowed to wind-power generating units, UNEP report Global Trends in Substantial Energy Investment 2008 showed. The large investment doubled China’s capacity for wind power to 6,000 mW last …