Abstract
This article examines the use of the prosumer concept in European energy law. The prosumer is a participant in the energy system who both produces and consumes energy. While academic interest in the prosumer in an energy context has risen over the past few years, there remains some confusion as to the correct use of the term and the limits of the prosumer concept. The article clarifies which activities and actors are covered by the prosumer concept and compares this analysis to the relevant legal sources of EU energy law.