Analysis of the provision of protection of critical energy infrastructure facilities that are often destroyed under the action of a shock wave, which affects the stability of Ukraine’s energy systems. Modeling of a rocket explosion and the distribution of destructive pressures from shock waves in the conditions of dense urban development was carried out using the ANSYS AUTODYN software product. The calculated parameters of the boundary of the shock wave distribution 15 ms after detonation were determined, and the maximum pressure values of the blast wave at the manometric points of the transformer substation structures were determined in different conditions of their location: surface location and underground. The purpose of the work is to develop a methodology for assessing the stability of transformer substations as elements of the critical infrastructure of an urbanized space in war conditions during the bombardment of residential areas with rockets. This will make it possible to develop measures to preserve the structural integrity of the transformer substation building itself. Methods. Finite element analysis of the stress-strain state of a concrete structure based on the elastic-plastic model and the generalized Hook-Brown failure criterion. This made it possible to simulate the zone of intense destruction of the concrete structure of the underground and surface location.