Military and economic prerequisites for transforming the energy supply of the housing sector of Ukraine based on Industry 3.0

The paper investigates the direction of the transformation of the energy supply of the residential sector of Ukraine as a result of the aggression of the Russian Federation and the significant destruction of the energy infrastructure. The paper aims to investigate the sustainability of the energy supply of the residential sector in Ukraine and propose directions for its transformation. The research method is based on analysing the state of Ukraine's residential sector's energy supply system and identifying the possibilities of its change into martial law conditions. The research examines the Ukrainian economy and infrastructure losses. Two alternative options for ensuring the energy dependence of the residential industry are suggested. The main measures to save energy and electricity for the population of Ukraine are presented step by step.