2011 wind industry stats: 41 GW installed in a $71 billion market.

Clean Edge: “Wind power (new installation capital costs) totaled a record $71.5 billion in 2011, up 18 percent from $60.5 billion the prior year, and is projected to reach $116.3 billion in 2021. Last year’s global wind power installations equaled 41.6 GW, the largest year for global installations on record. China remained the global leader in new installations for the fourth year in a row, installing more than 40 percent of all global wind capacity, or 18 GW in total.”