Energies (IF 3.004; ISSN 1996-1073; CODEN: ENERGA), is an open access journal of related scientific research, technology development, engineering, and the studies in policy and management and is published semi-monthly online by MDPI. Since its launch in 2008, the journal has been indexed by the Science Citation Index Expanded (Web of Science), Ei Compendex, Scopus and other databases. A first decision is provided to authors within 15.9 days after submission; acceptance to publication is undertaken in 3.7 days (median values for papers published in this journal in the first half of 2021). The journal website is https://www.mdpi.com/journal/energies.