Outflow energetics. Left: Kinetic power of outflow as a function of kinetic power generated by SN-driven winds. The solid lines report the relations Ė_out = 0.01,0.1,1 Ė_SB, as indicated in the figure. Right: Outflow momentum rate as a function of momentum supplied by starburst galaxies. The solid lines refer to Ṗ_out= 0.1,1,10 Ṗ_SB, as reported in the figure. Both panels also show the results by Cicone et al. (2014), Heckman et al. (2015), and Chisholm et al. (2017) for local starburst (stars, hexagons, and crosses) and AGN-dominated (squares and pentagons) sources. Big circles display the results from this work and are color-coded according to the momentum boost, as described in the text.