Wind energy pricing is at an all-time low, according to a new report released by the U.S. Department of Energy and prepared by Lawrence Berkeley National Laboratory (Berkeley Lab). The prices offered by wind projects to utility purchasers averaged under 2.5¢/kWh for projects negotiating contracts in 2014, spurring demand for wind energy. "Wind energy prices--particularly in the central United States--have hit new lows, with utilities selecting wind as the low cost option," Berkeley Lab Senior Scientist Ryan Wiser said. "Moreover, enabled by technology advancements¹, wind projects are economically viable² in a growing number of locations throughout the U.S." 

 

Key findings from the U.S. Department of Energy's latest "Wind Technologies Market Report" include:

 

Wind is a credible³ source of new electricity generation in the United States. Wind power capacity additions in the United States rebounded⁴ in 2014, with $8.3 billion invested in 4.9 gigawatts (GW) of new capacity additions. Wind power has comprised 33% of all new U.S. electric capacity additions since 2007. Wind power currently meets almost 5% of the nation's electricity demand, and represents more than 12% of total electricity generation in nine states, and more than 20% in three states.

 

Turbine scaling is enhancing wind project performance. Since 1998-99, the average nameplate capacity of wind turbines installed in the United States has increased by 172% (to 1.9 MW in 2014), the average turbine hub height has increased by 48% (to 83 meters), and the average rotor diameter has increased by 108% (to 99 meters). This substantial scaling has enabled wind project developers to economically build projects in lower wind-speed sites, and is driving capacity factors higher for projects located in various wind resource regimes. Moreover, turbines originally designed for lower wind speeds are now regularly deployed⁵ in higher wind speed sites, further boosting project performance.

 

Low wind turbine pricing continues to push down installed project costs. Wind turbine prices have fallen 20% to 40% from their highs back in 2008, and these declines are pushing project-level costs down. Wind projects built in 2014 had an average installed cost of $1,710/kW, down almost $600/kW from the peak in 2009 and 2010.

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