Reuters: U.S. wind power capacity soared 39 percent last year but job growth stalled as uncertainty about renewable energy policies and the recession slowed manufacturing, an industry group said. The combined power generating capacity of new U.S. wind turbines installed last year hit more than 9,900 megawatts, up from a gain of over 8,400 MW in the previous year. Total capacity hit more than 35,000 MW, or about enough to power 9.7 million homes, the American Wind Energy Association …