Subject and purpose of work: The European Union’s energy policy focuses mainly on three areas: reducing greenhouse gas emissions in the energy sector by increasing the use of RES, reducing emissions of harmful pollutants, and increasing the efficiency of the electricity used. Sustainable energy use, on the other hand, is clearly associated with an increased use of renewable energy sources, which ensures energy security, as well as diversification of energy supplies that sustain and improve the quality of the environment. The purpose of the paper is to present the diversity of the countries of the European Union in terms of the actions they take in the field of energy and climate policy resulting from the European Union directives. Materials...