The subject of the study is conceptual approaches, tools and mechanisms of strategic change management in Ukrainian energy companies taking into account the principles of sustainable development.The purpose of the study is to form theoretical and methodological foundations and develop practical recommendations for effective management of transformation processes in the energy sector of Ukraine in accordance with the goals of sustainable development.Research methods. A complex of general scientific and special methods was used: system analysis, strategic planning and comparative analysis.The results of the work. The article substantiates a model of strategic change management in energy companies that integrates the principles of energy security, environmental efficiency and social responsibility. A mechanism for adaptive change planning is proposed, which takes into account market dynamics, regulatory requirements and international obligations of Ukraine regarding climate neutrality.Field of application of the results. The results can be used in the activities of state and private energy companies, public administration bodies, as well as in the process of developing sectoral development strategies, environmental policy, ESG reporting and institutional engineering in the energy sector.Conclusions. The formation of strategic capacity for change is the foundation for creating a modern, innovative and responsible energy sector in Ukraine. It is through effective management of transformations that the industry will be able to overcome challenges and enter a sustainable growth trajectory.