Articles | Volume 1, issue 2
Wind Energ. Sci., 1, 115–128, 2016
Wind Energ. Sci., 1, 115–128, 2016

Research article 24 Aug 2016

Research article | 24 Aug 2016

Year-to-year correlation, record length, and overconfidence in wind resource assessment

Nicola Bodini et al.

Data sets

Historical and Homogenized surface wind speeds for Canada. Update to December 2014 Environment and Climate Change Canada\&n=552AFB3E-1

Short summary
Year-to-year variability of wind speeds limits the certainty of wind-plant preconstruction energy estimates ("resource assessments"). Using 62-year records from 60 stations across Canada we show that resource highs and lows persist for decades, which makes estimates 2–3 times less certain than if annual levels were uncorrelated. Comparing chronological data records with randomly permuted versions of the same data reveals this in an unambiguous and easy-to-understand way.