Authors headline the peak elasticity; obs 3285 (hour 17, -0.1275 rounded to -0.13) is the explicitly emphasized value || "Our measured price elasticity peaks at a value of approximately -0.13 implying that a one percent increase in price reduces demand by 0.13 percent." (Abstract, p.1); "The highest value can be found at 17:00." (p.14)
Knaut, A. & Paulus, S. (2017): "When are consumers responding to electricity prices? An hourly pattern of demand elasticity." EWI Working Papers 2016-7, Energiewirtschaftliches Institut an der Universitaet zu Koeln (EWI), revised 2017.