The concept of energy poverty was first put forward in the United Kingdom and was originally known as “fuel poverty.” It mainly focused on the situation where households could not afford the necessary energy costs to keep indoor temperatures at an adequate level. In the later part of the twentieth century, the notion of social equity gained prominence in the energy sector, and the concept of social justice was introduced to the energy sector. In the late twentieth century, the concept of social equity gained prominence in the energy sector. People began to recognize that access to energy should not be a privilege for a few, but a basic right for all. The rise of the concept of energy equity prompted scholars and policymakers to focus on those who did not have access to adequate energy. For example, international organizations such as the World Bank have begun to study energy poverty, defining it as the inability of households to access adequate, affordable, reliable, good quality and safe energy services to meet their basic needs. The spread of this idea has led to the gradual transformation of energy poverty from a phenomenon into a concept that is being widely studied and focused on, and is closely intertwined with concepts such as social equity and sustainable development.