I. Introduction
Energy transition is a critical focal point for many countries worldwide, as it is widely recognized as a facilitator for achieving the net-zero emission and Sustainable Development Goals (SDGs) proposed by the United Nations, particularly the objective of attaining affordable and clean energy (SDG 7) [1]. To make the transition to a sustainable energy system a reality, numerous initiatives, technical innovations, governmental programs and regulations, sustainable projects, and research have been introduced worldwide [1]–[4]. Among these strategies, sustainable energy finance emerges as one of the most critical factors in driving the transition of energy sector [5]–[7].