The aim of the article is to discuss the unintended consequences of
energy efficiency, in the context of defuturization, by addressing the phenomenon
of the rebound effect. The energy discourse is presented as ideological
discourse protecting the status quo, even if it contemplates alternatives solutions.
The interpretation of energy efficiency in the light of the Luhmannian
concept of temporal structures in the modern society is proposed, and two
types of expert narratives on the rebound effect are outlined: the mechanistic
rebound effect and the systemic Jevons paradox. Finally, we explain why
none of them are noticeably reflected in public discourse on energy policy
and are limited to the scientific milieu.