Confidence intervals for annual wind power production Alain Bensoussan, Pierre Raphaël Bertrand, Alexandre Brouste, Nabiha Haouas, Mehdi Fhima and Daouda Koulibaly ESAIM: Proc., 44 (2014) 150-158 Published online: 14 January 2014 DOI: 10.1051/proc/201444009