ICCE2023 encourages submissions within clean/renewable energy and across a variety of fields such as Biomass/Biofuel energy,  Solar cells & Photovoltaic , Wind energy, Energy storage techniques,  Novel nanomanufacturing methods, Distributed energy systems, Energy education, Fuel cells materials and hydrogen energy,Green buildings   etc.  Papers may address, but are not restricted to, any of the following topics. Unlisted but related sub-topics are also acceptable.