This work presents the computational analysis of the energy propagated and dissipated in agglomerates whilst impacting against a rigid target. Computer simulations were carried out using Discrete Element Method (DEM). One agglomerate made of 3000 spherical cohesive particles of 100 micrometers in diameter was impacted against a wall at velocities between 0.02 and 4 m/s. The cohesion between particles was simulated using the model of Johnson, Kendall and Roberts (1971). The curve of the final kinetic energy of the agglomerate versus incident kinetic energy shows a minimum which coincides with the minimum value of kinetic energy required to produce the agglomerate fragmentation (transition between a 'quasi-elastic' and a 'fragmentation' regime). A comparison of the energy dissipated by breakage of individual interparticle contacts with the net loss kinetic energy shows that contact breakage is only responsible for a small part of the energy dissipated in the system and therefore, most energy is consumed by contact friction and damping between the individual particles forming the agglomerate.