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Ground-breaking French Study should stop further expenses on the so-called super-grid
Written by Hugh Sharman   
Sunday, 18 December 2011

The purpose of the "super-grid", of which in a very small way the new Irish inter-connector is an example, is that wind power (and PV) surpluses in one part of Europe will find value and be exported to other parts of Europe where and whenever there is a dearth.

Hubert Flocard's comprehensive analysis (download here) shows the extent to which the whole concept is invalid. His empirical analysis across all Western Europe, shows that wind power peaks and troughs are pretty much simultaneous.  It is disappointing that the EU-sponsored "Trade winds" study, commissioned to promote the idea, did not pick up on this perfectly obvious flaw.

Flocard's sources are quoted on his first slide.  His data are excellent.  Incidentally, It is much easier to obtain historical data on wind output patterns on the sites mentioned than any in the UK.

His work is not the only empirical analysis of this subject.  Paul-Frederik Bach's previous study (download here), showed in detail how closely aligned and correlated Danish and Germany wind power output is.

We at DimWatt very much regret this finding because the super-grid sounds so ...umm... "super".  But before the EU or their constituent members sink too much treasure and hope into the idea, DimWatt urges them to revisit the assumptions of the promoters. 

Hope is no substitute for uncomfortable fact, as current events in the financial world seem to be proving all too clearly.

 

Flocard&Co-111210_EuropeanWind (1).ppt (2.82 MB)

wind_power_geographical_distribution_2009.pdf (295.17 kB)

 

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