We present an analysis of the gas outflow energetics from KMOS observations of ˜ 529 main-sequence star-forming galaxies at z ˜ 1 using broad, underlying Hα and forbidden lines of [N II] and [S II]. Based on the stacked spectra for a sample with median star-formation rates and stellar masses of SFR = 7 M⊙ / yr and M⋆ = (1.0 ± 0.1) × 1010 M⊙ respectively, we derive a typical mass outflow rate of \dot{M}_wind = 1-4 M⊙ yr-1 and a mass loading of \dot{M}_wind / SFR = 0.2-0.4. By comparing the kinetic energy in the wind with the energy released by supernovae, we estimate a coupling efficiency between the star formation and wind energetics of ɛ ˜ 0.03. The mass loading of the wind does not show a strong trend with star-formation rate over the range ˜ 2-20 M⊙ yr-1, although we identify a trend with stellar mass such that dM / dt / SFR ∝ M_\star ^{0.26± 0.07}. Finally, the line width of the broad Hα increases with disk circular velocity with a sub-linear scaling relation FWHMbroad ∝ v0.21 ± 0.05. As a result of this behavior, in the lowest mass galaxies (M_\star ≲10^{10} M⊙), a significant fraction of the outflowing gas should have sufficient velocity to escape the gravitational potential of the halo whilst in the highest mass galaxies (M_\star ≳10^{10} M⊙) most of the gas will be retained, flowing back on to the galaxy disk at later times.