Although the European Union has legislated in the area of energy policy for many years, the concept of introducing a mandatory and comprehensive European Union energy policy was only approved at the meeting of the informal European Council on 27 October 2005 at Hampton Court.
Koncept uvođenja obvezne i sveobuhvatne energetske politike Europske unije odobren je na sastanku neformalnog Europskog vijeća 27. listopada 2005. godine u Hampton Courtu.