Small-scale wind turbines that can churn out 10 to 100 kilowatt-hours of electricity are gaining in popularity, especially in developing countries such as China, industry insiders said. About 130,000 small-scale wind turbines were installed in China last year, said Chen Dechang, a representative of the Chinese wind-industry association. Globally, the number of installed small-scale wind turbines rose twofold in the last three years, according to the American Wind Energy Association.

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