Accounting for future generations is central in energy ethics and the ethical matrix can be used to reveal ethical impacts on them. However, the way it integrates future generations is questionable. The aim of this paper is to show why this tool does not consider ethical impacts on future generations appropriately and to propose a novel temporalized framework, which characterizes future people according to temporal, spatial and role features. By stimulating the disclosure of intergenerational conflicts, this temporalized matrix provides support (...) for a more nuanced overview of ethical impacts across generations, crucial in the field of energy ethics. (shrink)