NEW YORK (Dow Jones)--U.S. wind-generating capacity rose 15% last year in tough economic conditions, and new development started off this year at an even stronger pace, the American Wind Energy Association said Thursday.

Last year, the construction of new turbines increased wind power generation by 5,116 megawatts to 40,181 megawatts, enough to power 10 million U.S. homes, the industry group said in its annual market report for 2010.

"Wind prices are very affordable right now" and a competitive source of power given the drop in prices over the past two years, Elizabeth ...

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