  Energy justice, at the intersection of energy and societal ethics, studies
the origins, quantification, and resolution of persistent and potential
inequities within the energy sector, serving as a foundational pillar for
societal harmony. In this review, we overview the historical and modern
definitions of energy equity and frameworks of energy justice. We highlight the
tools adopted to measure equity in the energy context, unveiling multifaceted
inequities that permeate global energy landscapes. We discuss the limitations
of prevalent metrics such as the Gini coefficient and Generalized Entropy
Indices in the evaluation of energy justice concerns. Finally, we analyze
publications that examined current practices and proposed improving methods
towards a more equitable energy market for the society from policy, planning,
and operation perspectives.
