Energies (ISSN 1996-1073; CODEN: ENERGA) is a peer-reviewed 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. The European Biomass Industry Association (EUBIA), Polish Society of Applied Electromagnetics (PTZE), and Association of European Renewable Energy Research Centres (EUREC) are affiliated with Energies and their members receive a discount on the article processing charges.Subject Areas:- Energy Fundamentals- Primary Energy Sources- Secondary Energy Sources and Energy Carriers- Energy Exploration and Exploitation Intermediate and Final Energy Use- Energy Conversion Systems- Energy Policy- Exergy- Energetics- Energy Research and Development