Sinovel and Goldwind derived more than 99 percent of their revenue in 2010 from China, the world's biggest wind market.

With wind turbines manufacturers  sales set to peak at home this year, Chinese manufacturers are “looking outwards to maintain sales,” especially in markets like Brazil, India and Australia where there's more growth to be tapped than in Europe or the U.S., said Lawrence Brader, investment analyst for Hong Kong-based Environmental Investment Services Asia Ltd. Its Green Dragon Fund invests in regional clean-technology companies.

Since November, Sinovel, Goldwind and their peers have publicly disclosed at least 2,800 megawatts in overseas orders from Greece to Ireland to Australia, or about 7 percent of last year's global sales, according to data compiled by Bloomberg.

That's more than India, the world's third-largest wind generator market for new capacity, erected in 2010. At Goldwind, 7.5 percent of first-half revenue came from overseas sales, Vice President Ma Jinru said last month.

A-Power Energy Generation Systems Ltd., based in Shenyang, plans to build a turbine plant in Nevada, the first by a Chinese supplier in the U.S., to supply a 615-megawatt Texas wind turbine generator  park and future North and South American customers. A-Power is seeking external financing for that plan, it said in April.