N.Idomar, L.Boukhattem , F.Oudrhiri Hassani , A.Oukennou, M.Akhsassi, Comparison of the electrical power estimated by different mathematical Models with the one produced by the solar photovoltaic generators connected To the electric grid at Ensa-safi, 33rd European Photovoltaic Solar Energy Conference and Exhibition Amsterdam, (NETHERLANDS) November 2017.