Ionised kinetic power and kinetic coupling efficiency as a function of AGN bolometric luminosity. Left panel: ionised kinetic power as a function of AGN bolometric luminosity. The red dashed line is the best scaling relation obtained in Fiore et al. (2017). The solid grey line in both panels is our scaling relation obtained from OLS fitting between the two variables. The grey region indicates the 95% confidence interval and the faded filled region between two dashed black lines is the 1σ. Right panel: kinetic coupling efficiency (Ė/L_bol) versus AGN bolometric luminosity. The black dashed line represents Ė = 0.1 L_bol, red dashed line represents Ė = 0.01 L_bol and green dashed line represents Ė = 0.001 L_bol. 30% of the candidates appear above Ė/L_bol = 0.01 or 1%. These values have 2−3 orders of magnitude uncertainties due to the different assumptions applied.