**Preface to "Energy Policy, Regulation and Sustainable Development"**

Today's economy is faced with a very important challenges—responding to dynamic environmental degradation, dwindling energy resources, public opposition to the changes taking place and also satisfying businesses operating in the market. Taken together, these challenges are driving the development of a sustainable economy.

We are delighted to present the results of the research conducted and published as part of our Special Issue. The papers published here primarily explore renewable energy sources, environmental pollution and the energy transition. The Special Issue's dynamic scope has made it possible to include other topics, such as those relating to the stock market. The papers presented here showcase academic excellence and contribute to a compelling scientific discussion.

> **Grzegorz Mentel and Sebastian Majewski** *Editors*
