Electrical Business

Features Energy & Power Renewables
Price of wind energy States-side at an all-time low


August 11, 2015
By Anthony Capkun


Topics

August 10, 2015 – Wind energy pricing in the United States 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 $0.025/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,” said Berkeley senior scientist Ryan Wiser. “Moreover, enabled by technology advancements, wind projects are economically viable in a growing number of locations throughout the U.S.”

Key findings from the latest Wind Technologies Market Report (download below) include:

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

Turbo, er, turbine boost
Turbine scaling is enhancing wind project performance. Since 1998-99, the average nameplate capacity of wind turbines installed in the States has increased by 172% (to 1.9MW in 2014), the average turbine hub height has increased by 48% (to 83 metres) and the average rotor diameter has increased by 108% (to 99 metres). This 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 deployed in higher wind speed sites, further boosting project performance.

Turbine pricing
Low turbine pricing continues to push down installed project costs. 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 $1710/kW, down almost $600/kW from the peak in 2009 and 2010.

Aggressive wind power pricing
Wind energy prices have reached all-time lows, improving wind’s economic competitiveness. Lower wind turbine prices and installed project costs, along with improvements in expected capacity factors, are enabling aggressive wind power pricing. After topping out at nearly $0.07/kWh in 2009, the average levelized long-term price from wind power sales agreements signed in 2014 fell to just $0.0235/kWh—the lowest-ever average price in the U.S. market (admittedly, that figure is based on a sample of projects that largely hail from the lowest-priced, central region of the country).

The continued decline in average wind prices, along with a bit of a rebound in wholesale power prices, put wind below the bottom of the range of nationwide wholesale power prices in 2014. Wind energy contracts executed in 2014 also compare favourably to a range of projections of the fuel costs of gas-fired generation extending out through 2040. These low prices have spurred demand for wind energy, both from traditional electric utilities and, increasingly, from commercial customers.

Supply chain
The manufacturing supply chain continued to adjust to swings in domestic demand for wind equipment. Wind sector employment increased from 50,500 in 2013 to 73,000 in 2014. Moreover, the profitability of turbine suppliers has generally rebounded over the last two years, after a number of years in decline.

For wind projects recently installed in the U.S., domestically made content is highest for nacelle assembly (>90%), towers (70-80%) and blades and hubs (45-65%), but is much lower (<20%) for most components internal to the nacelle. Exports of wind-powered gensets from the States rose from $16 million in 2007 to $488 million in 2014; tower exports equalled $116 million in 2014.

Despite the growth in the domestic supply chain over the last decade, however, far more domestic manufacturing facilities closed in 2014 than opened. With an uncertain domestic market after 2016, some manufacturers have been hesitant to commit additional long-term resources to the U.S. market.