Dear Colleagues,

Nowadays, on the one hand, the world is facing ongoing and emerging energy challenges, and on the other hand, the primary source of energy is fossil fuels (oil, coal, and natural gas) that contribute substantially to environmental issues and threats such as global warming and climate change. Therefore, transitioning from fossil fuels to clean, renewable, and sustainable energy sources is necessary for all sectors (transportation, building, industry, agriculture, and others).

This Special Issue aims to fill knowledge gaps and help develop technologies related to clean, sustainable, and renewable energy systems (both stand-alone and hybrid). Original research, review articles, case studies, and technical notes are welcome. Research areas may consist of, but are not limited to, the following:

·        Smart, hybrid, integrated renewable energy systems

·        Solar energy technology and uses

·        Wind energy technology and applications

·        Geothermal energy resources and applications

·        Wave, tide, and ocean/marine thermal energies

·        Bio-energy technology and uses

·        Hydrogen energy and fuel cells

·        Socio-economic and policy issues related to renewable energy

·        Energy conversion and storage technologies

·        Energy and exergy analysis of renewable energy systems

·        Life cycle assessment of renewable energy systems

·        Application of renewable energy sources in buildings

·        Renewable energy, sustainability, and climate change

Substantive and valuable articles addressing this Special Issue’s objectives will be selected and published following peer review. We look forward to receiving your contributions.

Dr. Alireza Dehghani-Sanij

Dr. Mohammad Mehdi Salehi Dezfouli

Guest Editors

Clean and renewable energy；Renewable energy sources and production ; Energy conversion and storage; Energy conservation and recovery; Energy management and optimization; Smart, hybrid, and integrated energy systems; Green energy and buildings ; Energy and exergy analysis ; Energy equity, security, and access ; Sustainable development