Explosion energy of each stellar model if it has a CCSN, where the colour of the squares indicates the SN energy. White squares indicate models that do not have a CCSN. The left column shows the single models, while the two right columns show the primary and secondary models of binary systems, respectively. Each row shows one metallicity. The x-axis shows the different names according to Table 1. The initial stellar masses are shown on the y-axis; we note that the binary grid has a coarser sampling in initial mass than the single grid. The highest initial masses are not shown as they have no CCSN.