The Chinese companies also said they expected to buy as much as 50,000 tons of steel from American mills to build the Texas project, and A-Power and its partners announced plans to eventually open a manufacturing plant in Nevada.

Still, some skeptics say the Chinese manufacturers are too new to wind energy to warrant investing in their equipment for wind farms intended to operate for decades.

Wind turbines made by Chinese manufacturers sell for an average of $600,000 a megawatt, compared with $800,000 or more for Western models made from Chinese parts, and even higher prices for European and American machines. Yet, Western banks have been leery of lending wind farms money to buy the Chinese equipment because of concerns about its reliability, according to Robert Todd, the Hong Kong-based director of the renewable energy, resources and energy group at HSBC.

But with the American wind industry in the doldrums, there are few other big investments pending. The American Wind Energy Association estimates that this year only 5,500 megawatts of new capacity has been added in the United States. That is only about half of last year’s total — and far less than the 17,600 megawatts, or more, being installed this year in China, which has provided more subsidies and set more renewable energy targets for its utilities.

Proponents of the Chinese push say the availability of inexpensive turbines from China — and ample customer financing from its state-owned banks — could help put wind energy back on a growth track by making it more affordable for American utilities and developers.

“Wind power in the United States is in a disordered phase because of a lack of funds,” said Andrew Hang Chen, the president of Usfor Energy, a consulting firm in Pittsburgh that advises the Chinese government and its state-controlled wind energy companies. “It’s a very good opportunity for Chinese businesses to access the U.S. market.”

But Steve Trenholm, the chief executive for North American operations at a big wind farm developer, E.On Climate and Renewables, said his company still leaned toward staying with Western multinationals, most of which have set up at least limited manufacturing facilities in the United States.