The 8th ICCE conference (ICCE2019) takes place in Montreal, Canada. Montreal rates as one of the world’s most livable cities, and was named “Canada’s Cultural Capital” by Monocle Magazine and a UNESCO “City of Design”. ICCE is an annual regular conference since 2012 and has been successfully held in many cities across Canada. This conference is organized to share and discuss recent developments in clean energy sector. The aim of ICCE 2019 is to gather researchers, scientists, engineers, practitioners, policy makers, from all over the world to present advances in the clean energy technologies. We are in an era in which there is a continuous progress in green energy sources and technologies and ICCE 2019 will provide a forum to exchange information, present new technologies and developments, and discuss the future direction, strategies and priorities in the field of clean energy.