"It's indisputable that wind energy, with or without the production tax credit, drives down electricity prices," he said.
"What happens to Cape Wind, whether it goes up or goes down, will not be determinative of the future of wind energy in the United States," he said.
But in markets like the US, where fracking and wind energy have driven down the price of power, the case for adoption is harder (though states like California are pushing micro-CHP through a subsidies programme).
Some analysts argue that while Germany is right to address grid congestion, doing so by artificially slowing down the wind energy boom risks undermining the country's credibility as a green leader.
Figure 2 shows the municipal value added of wind energy plants per kW broken down by stage of the value chain and component of value added.
Since 2009, real wind energy costs in the U.S. are down more than 66percentt.
Wind technology has leapt ahead over the years and helped to drive down the cost of wind energy.
Years of technological innovations and an influx of American-based manufacturing have driven down the cost of wind energy.
These cover all possible windspeed values, from extreme high winds, for wind loading applications, through moderate winds for wind energy or building ventilation applications down to low windspeeds for use in risk assessments, where, although all windspeeds are relevant, these low values dominate the risk from accidental releases.
In addition, the up-, middle- and down-stream of the wind energy industry chain are analyzed individually.
State mandates and tax incentives helped the solar and wind energy industries grow, but what really helped drive down the cost of green energy is scale and technology.
