"Texas capacity stands at 2,370 megawatts, enough to power 600,000
average-sized homes a year, according to a midyear report released
Tuesday by the American Wind Energy Association. That puts Texas
slightly ahead of California, the nation's leader since 1981.
California has 2,323 megawatts of capacity.

The total U.S. capacity is 9,971 megawatts. So far this year, Texas
has added 375 megawatts, or 46 percent of the total 822 megawatts
brought online nationwide.

Last year, wind energy generation grew 35 percent nationwide, adding
2,431 megawatts, but that fell short of the projected 2,500. The wind
association believes it can add 3,000 megawatts nationwide this year,
even if that means another 2,178 megawatts by year's end."

Read the full article at the source:
Wired News: Wind Energy: Texas Blows Hot Air