https:// ICCE2020.iaemm.com The 9th ICCE conference (ICCE2020 / ICCE2021) takes place in Ottawa Canada. 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 is to gather researchers, scientists, engineers, practitioners, policy makers, from all over the world to present advances in the clean energy technologies. ICCE2020 / ICCE2021 will provide a forum to exchange information, present new technologies, and developments, and discuss the future direction, strategies and priorities in clean energy.