Abstract: We present geometry-based corrections to estimates of the Bjorken energy density in a broad range of heavy-ion collision energies (from RHIC to the LHC) considering non-circular shape of the nuclei overlap area in case of events selected in 0–5 centrality classes. We compare the updated Bjorken energy excitation function, obtained in our study for these very central A–A collisions, to the previously obtained ones. We also present and discuss the relevant energy dependencies of pion, kaon and proton contributions to the Bjorken energy density that are also estimated in our study. © Pleiades Publishing, Ltd. 2023.