In 2013, Frontiers in Energy Research started its journey, and we committed to advancing developments in the field of energy research by allowing unrestricted access to articles, and communicating scientific knowledge to researchers and the public alike, to enable the scientific breakthroughs of the future. To mark the milestone of the 10-year anniversary, we are delighted to present the “10 Years of Frontiers in Energy Research” article collection. The cutting-edge work presented in this article collection highlights the diversity of research performed across the entire breadth of the energy field and reflects on the latest advances in the theory, experiment, and methodology with applications to compelling problems in policy and research. This article collection explores sustainable developments and technological advances in all fields of energy research to help produce reliable and affordable energy sources.