The US wind industry, for example, expanded its generating capacity 45 percent last year, generating enough power for 1.5 million households. Accounting for 30 percent of the new US power-production capacity last year, wind reached 1 percent of the country's electricity supply, data from the American Wind Energy Association shows.
A recent study by Emerging Energy Research, estimated that as much as US$65 billion would be invested in additional wind power from last year to 2015, producing a compound annual growth rate of 15.7 percent.
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