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The wind energy debate represents a new kind of environmental controversy which divides environmentalists of different persuasions who attach contrasting priority to global and local concerns. Case studies of public attitudes towards existing and proposed windfarm developments in Scotland and Ireland are used to test three counter-intuitive hypotheses derived from previous attitudinal research.
Editor's Note: This study was conducted in collaboration with the Macaulay Institute, Aberdeen. The Institute's commercial arm, Macaulay Enterprises, acts as a consultant for the renewables industry, and is linked to the Scottish Renewables Forum and the British Wind Energy Association.
The pro-wind pre-disposition of the authors is evident and should not be ignored when evaluating survey results. Survey respondents generally expressed support of wind energy based on the belief that it was a solution for global warming. Given wind energy's limited effectiveness in reducing greenhouse gases based on today’s studies, we question how survey participants might respond if contacted again. The report also comments that communities selected had no organized opposition to the wind facilities. Today, throughout England, Wales and Scotland, organized opposition is the norm, not the exception.
The firm Ernst and Young has recently identified the UK as the best market for wind in the world due to its combination of wind resource, strong offshore regime and the extension of the Renewables Obligation to 15% by 2015 (BWEA UK Market Overview) This commercial exploitation of wind energy is proving a curse to the whole of the UK. The public has been deluded and deceived."
Editor's Note: The authors’ conclusion regarding ‘effective capacity’, i.e. the measure of a generator’s contribution to system reliability that is tied to meeting peak loads, is that it “is difficult to generalize, as it is a highly site-specific quantity determined by the correlation between wind resource and load” and that ‘values range from 26 % to 0% of rated capacity.” This conclusion is based, in part, on a 2003 study by the California Energy Commission that estimated that three wind farm aggregates- Altamont, San Gorgonio and Tehachpi, which collectively represent 75% of California’s deployed wind capacity- had relative capacity credits of 26.0%, 23.9% and 22.0% respectively. It is noteworthy that during California’s Summer ’06 energy crunch, as has been widely publicized in the press, wind power produced at 254.6 MW (10.2% of wind’s rated capacity of 2,500MW) at the time of peak demand (on July 24th) and over the preceding seven days (July 17-23) produced at 89.4 to 113.0 MW, averaging only 99.1 MW at the time of peak demand or just 4% of rated capacity.
This paper reports on performance data of the west Denmark power grid, to which 80% of the country’s wind power is connected. The east Denmark power grid is entirely separate but both grids are heavily interconnected to the national grids of neighbouring countries to the north and south."
Have we learned from this experience? It does not always seem so. The current state of the debate about wind power presents many of the same unwelcome symptoms – exaggerated claims; confused arguments; strong emotions; neglect of the practicalities and risks. In this climate an authoritative and neutral examination of the issues would have been a helpful corrective. This is what the latest report of the Sustainable Development Commission (SDC) seems to promise. The Report, entitled “Wind Power in the UK” describes itself as “a guide to the key issues” surrounding wind power development, providing information to help “considered decisions to be made”. Unfortunately, but perhaps predictably, the Report fails to do so. The Commission ends up as just another cheerleader for wind power, using the Report to argue that “wind power must be made to work” because it is a “critically important part of the overall energy mix”. In its bullish (not to say bull-headed) approach, the Commission is repeating the errors of the early advocates of nuclear: underestimating the likely costs; minimising the practical problems; overstating the benefits; and dismissing the alternatives – in a report which, at many points, shows a poor grasp of the issues."
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