However, if we're just going to consider facts and conclusions that can be drawn from them, the article seems pretty reasonable to me.
Here's a clip.
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Date: 18/10/17 M J Kelly, Department of Engineering, University of Cambridge, United KingdomThe first-ever offshore wind farm, Vindeby, in Danish waters, is being decommissioned after twenty-five years, DONG Energy has announced.[1] By its nature it was an experiment, and we can now see whether or not it has been a successful alternative to fossil or nuclear-fuelled electricity.
Here's the conclusion he comes to:
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The disappointing results from Vindeby, and the likely results from Hornsea and similar projects must be seen in the context of the increasing wealth of a growing world population. If all the world’s 10.3 billion people alive in 2055 were to lead a European (as opposed to American) style of life, we would need 2.5 times the primary energy as used today. If, say, half of the energy is suddenly produced with an energy return on investment of 5.5:1 (i.e. half the present world average), then for the same investment we would get only 75% of the energy and we would need to cut energy consumption: the first 10% reduction could come by curtailing higher education, international air travel, the internet, advanced medicine and high culture. We could invest proportionately more of our economy in energy production than we do now, but that will still mean a step backward against the trend of the last 200 years of reducing the proportion of the total economy taken by the energy sector.[13] To avoid this undesirable scenario we would need new forms of energy to match the fossil/nuclear fuel performance.
In this context it is useful to remember that global economic growth is very sensitive to the cost of energy. The energy cost spikes in the mid-1970s and in 2010 form the boundaries between the 5% growth rate of the global economy from 1950–1975, the 3% from 1980–2008, and the 2.5% since 2012. There is a lot at stake in the choice between cheap fossil fuels and expensive renewables.
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