Costs are down for turbine producers. A rebound in CO2-credit pricing may also push up demand, according to Bloomberg Industries.
Obstacles remain. An outdated power grid could slow wind development. Far-flung turbine arrays and the intermittency of wind itself may require expensive, politically unpopular grid upgrades. High-voltage transmission lines, which sometimes face local resistance, are needed to move power from wind farms to power users. Natural gas, long touted as a "bridge" to renewable energy, may end up stealing investment from wind.
The wind industry drew $112.4 billion last year, down 10 percent from its 2011 peak.
Left: Caithness Shepherds Flat wind farm in Arlington, Oregon.
Watch for updates from the BNEF Future of Energy Summit.